GO Battle League

The GO Battle League (Japanese: GOバトルリーグ GO Battle League) is a feature in for competitive, online s. It was first introduced on January 28, 2020. Due to an exploit that allowed players to cheat, the GO Battle League was taken down on June 12, 2020, until a fix could be patched into the game.Niantic Support on Twitter It was restored on June 23, 2020.
==Rules and mechanics==
Official rules for the GO Battle League were first announced on December 11, 2019.Community Note: GO Battle League preview, combat system update, legacy attacks, and more! They are as follows:
* A season is a predetermined period of time during which Trainers can battle to increase their rank and rating. At the start of a season, all Trainers start from Rank 1 and can work their way up to the maximum rank. Once a Trainer's rank moves up, it will not drop down for the remainder of the season. The current top-rated Trainers are displayed on a leaderboard.
** Starting with Season 6, Trainers can first work their way up to Rank 20. Upon reaching Rank 20, Trainers are assigned a rating and can raise it to reach the Ace, Veteran, Expert, and ultimately Legend Ranks.
** Prior to Season 6, Rank 10 was the maximum rank and ratings were assigned upon reaching Rank 7.
** Trainers are matched against each other based on their current rating and rank. Prior to reaching Rank 20, Trainers are primarily matched agaist those close in rank; rating likely plays a factor despite not yet being visible. After reaching Rank 20, Trainers are matched against others close in rating and of Rank 20 or greater. 
* Winning a match increases a Trainer's rating, and losing a match lowers it; currently a counts as a loss. If the timer expires, the win is awarded to the Trainer with more usable Pokémon remaining; ties progress to number of remaining shields and remaining cumulative HP among their Pokémon.
* GO Battle League matches can take place in any league, as well as restricted versions of the leagues (see Special Leagues and Cups below). The available leagues rotate throughout each season.
** The GO Battle League features a unique 500 CP league, the Little Cup, in addition to the three normal leagues.
* Teams with multiple Pokémon of the same species are not allowed. As with other Trainer Battles, and are also ineligible to participate.
* Mega-Evolved Pokémon are not allowed outside special Mega-eligible events and leagues.
* Battles are organized into sets of five. Trainers may battle in five sets per day, though sets left unfinished until another day do not count against that day's limit. Rewards are granted at the end of the set based on the player's performance.
===Unrated Seasons===
Though during most seasons achieving the highest rank requires a certain rating, several seasons have not used rating-based ranks at all. Trainers are still assigned a rating for matchmaking purposes but it is not visible.
* The Preseason at the GO Battle League's launch did not use ranks.
* In Season 5, the preexisting ranks and corresponding rewards were achievable through winning set numbers of battles, with no rating-based requirements. This change was made in preparation for the Season 6 rank redesign and introduction of Candy XL.
* In the Interlude Season following Season 10, the maximum rank was Rank 20. The Interlude Season was scheduled to allow improvements to the Battle League's code.
===Walking requirement===
Prior to March 13, 2020, players would have to walk a certain distance in order to unlock a set of five GO Battle League matches, or alternatively could spend PokéCoins to unlock them immediately. Since March 13, 2020, there is no longer any walking requirement.
From January 28 (the launch of GO Battle League) until January 31, 2020, players would have to walk 5 km; from January 31, 2020, until March 13, 2020, players would have to walk 3 km. After unlocking a set, any additional distance traveled will be rolled over towards unlocking the next set. A player could only participate in at most five sets (or 25 GO Battle League matches) per day, but afterward, could still accumulate distance for the next day's set.
The PokéCoin cost to immediately unlock the next set depended on how much distance was left:
* 200 if at least 2 km remaining
* 100 if at least 1 km remaining
* 50 if less than 1 km remaining
Starting March 13, 2020, the walking requirement was temporarily waived amidst the COVID-19 pandemic.Niantic Support on Twitter On April 5, 2021 (just before Season 7) it was announced that the walking requirement had been permanently removed.
==Ranks==
The following lists the requirements to move up in each rank. All listed requirements are non-cumulative, so the counters restart upon reaching a new rank.
Rank	Rank 	Unlock requirement
 	1 	Start
 	2 	Battle 5 times
 	3 	Battle 5 additional times
 	4 	Battle 5 additional times
 	5 	Battle 5 additional times
 	6 	Battle 5 additional times
 	7 	Win 1 battle
 	8 	Win 1 additional battle
 	9 	Win 1 additional battle
 	10 	Win 1 additional battle
 	11 	Battle 5 additional times
 	12 	Win 5 additional battles
 	13 	Win 6 additional battles
 	14 	Win 7 additional battles
 	15 	Win 8 additional battles
 	16 	Battle 5 additional times
 	17 	Win 10 additional battles
 	18 	Win 15 additional battles
 	19 	Win 20 additional battles
 	20 	Battle 5 additional times
 	Ace 	Achieve a rating of 2000+
 	Veteran	Achieve a rating of 2500+
 	Expert 	Achieve a rating of 2750+
 	Legend 	Achieve a rating of 3000+
===Original Ranks===
Prior to Season 6, the ranks went from Rank 1 to Rank 10. The thresholds for Ranks 8, 9, and 10 varied during Seasons 1 through 4. In Season 5, all ten ranks were achievable by winning a set number of battles.
Rank	Rank	Unlock requirement
 	1 	Start
 	2 	Battle 5 times
 	3 	Win 2 additional battles
 	4 	Win 4 additional battles
 	5 	Win 8 additional battles
 	6 	Win 10 additional battles
 	7 	Win 14 additional battles
 	8 	Achieve a rating of 2000+
 	9 	Achieve a rating of 2500+
 	10 	Achieve a rating of 3000+
==Rewards==
Trainers can earn up to five reward bundles per set for winning in the GO Battle League. Before starting a set of battles, the Trainer can choose either basic or premium reward track. A Premium Battle Pass is required for the premium reward track, which has better rewards than that of the basic. And upon finishing a set of five matches, the player will earn Stardust based on how many matches were won. Certain rewards on both tracks improve as the player moves up in rank.
Tier 	Wins	Wins	Wins	Wins	Wins
Tier 	1 	2 	3 	4 	5
Basic 	 	 	 	×3 	
Premium	 	 	 	×6 	×5
Starting in Season 12, players can obtain a free ticket from the shop for challenge Timed Research that lasts the entire season. Completing each page of the research requires winning 100 battles, rewarding small amounts of Stardust every ten wins and TMs when the page is completed. At 400 and 500 wins, the player can claim an Elite Fast TM and Elite Charged TM respectively. Season-long Timed Research was trialed during the Interlude Season with only Stardust rewards; at the time it required winning exponentially-increasing number of battles per page.
===Stardust===
The amount of Stardust awarded increases linearly with the player's rank.
Rank 	Basic	Basic 	Premium
Rank 	1 win	5 wins	3 wins
1 	300 	600 	900
2 	330 	660 	1,000
3 	330 	660 	1,000
4 	370 	740 	1,100
5 	– 	– 	–
6 	400 	800 	1,200
7 	430 	860 	1,300
8 	430 	860 	1,300
9 	470 	940 	1,400
10 	– 	– 	–
11 	530 	1,060 	1,600
12 	530 	1,060 	1,600
13 	570 	1,140 	1,700
14 	600 	1,200 	1,800
15 	– 	– 	–
16 	700 	1,400 	2,100
17 	730 	1,460 	2,200
18 	770 	1,540 	2,300
19 	– 	– 	–
20 	870 	1,740 	2,600
Ace 	900 	1,800 	2,700
Veteran	900 	1,800 	2,700
Expert 	900 	1,800 	2,700
Legend 	900 	1,800 	2,700
===Random items===
The following lists the possible random item that may be awarded in the GO Battle League. The frequency of each item does not differ between reward tiers and rank.
	
	Fast TM
	Charged TM
	Sinnoh Stone
	Silver Pinap Berry
===Wild encounters===
The possible wild Pokémon encounters as rewards vary depending on the Rank. They are caught at power up level 20 and have a guaranteed 10 s per stat. Currently, the wild encounter rewards are the same between the basic and premium reward tracks.
Usually, the awarded Pokémon is randomly selected from a pool that expands as the player increases in rank. However, reaching certain ranks will guarantee a specific Pokémon encounter for the first time only. If the player reaches another higher rank, that also has a guaranteed encounter, before being awarded the previous one, then the next wild encounter will be from the lower Rank first, and the higher rank's encounter will be queued for the next wild encounter that is earned.
After reaching a certain rank, it is possible to encounter the current level 5 as a reward encounter. This feature was originally available from March 3 to April 21, 2020, then was made permanent at the start of Season 5.
 	Season 12 encounters 	Season 12 encounters
Rank 	Random 	First-time guaranteed
Rank 1 	 	
Rank 6 	 	
Rank 11 	 	
Rank 16 	 	
Rank 20 	 	
Ace 	 	
Veteran 	 	
Expert 	 	
Legend 	 	
represents the current Legendary or Mythical Raid Boss(es)	represents the current Legendary or Mythical Raid Boss(es)	represents the current Legendary or Mythical Raid Boss(es)
 	Past Seasons' encounters 	Past Seasons' encounters 	Past Seasons' encounters 	Past Seasons' encounters 	Past Seasons' encounters 	Past Seasons' encounters 	Past Seasons' encounters 	Past Seasons' encounters 	Past Seasons' encounters 	Past Seasons' encounters 	Past Seasons' encounters 	Past Seasons' encounters 	Past Seasons' encounters 	Past Seasons' encounters
Rank 	Preseason 	1 	2 	3 	4 	5 	6 	7 	8 	9 	10 	Interlude 	11 	12
1 	* 	* 	* 	* 	* 	 	* 	* 	† 	† 	† 	† 	† 	†
2 	 	 	 	 	 	 	† 	 	 	 	 	 	 	
3 	 	 	 	 	 	 	† 	 	 	 	 	 	 	
4 	* 	 	 	 	 	 	† 	 	 	 	 	 	 	
5 	 	 	 	 	 	 	 	 	* 	 	 	 	 	
6 	 	 	 	 	 	 	† 	 	 	* 	* 	 	* 	*
7 	 	 	 	* 	* 	* 	† 	 	 	 	 	 	 	
8 	 	 	* 	* 	* 	* 	† 	 	 	 	 	 	 	
9 	 	 	* 	* 	* 	* 	† 	 	 	 	 	 	 	
10 	 	† 	† 	† 	† 	† 	 	 	 	 	 	 	 	
11 	 	 	 	 	 	 	† 	 	 	 	 	 	 	
12 	 	 	 	 	 	 	† 	 	 	 	 	 	 	
13 	 	 	 	 	 	 	† 	 	 	 	 	 	 	
14 	 	 	 	 	 	 	† 	 	 	 	 	 	 	
15 	 	 	 	 	 	 	 	 	 	 	 	 	 	
16 	 	 	 	 	 	 	* 	 	 	 	 	 	 	
17 	 	 	 	 	 	 	* 	 	 	 	 	 	 	
18 	 	 	 	 	 	 	* 	 	 	 	 	 	 	
19 	 	 	 	 	 	 	 	 	 	 	 	 	 	
20 	 	 	 	 	 	 	* 	* 	* 	 	 	†§ 	 	
ACE 	 	 	 	 	 	 	 	 	 	 	 	 	* 	*
VETERAN 	 	 	 	 	 	 	 	 	* 	* 	* 	 	* 	*
EXPERT 	 	 	 	 	 	 	 	 	* 	* 	* 	 	 	*
LEGEND 	 	 	 	 	 	 	† 	† 	† 	† 	† 	 	† 	†
represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny	represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny	represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny	represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny	represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny	represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny	represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny	represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny	represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny	represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny	represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny	represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny	represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny	represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny	represents the then-current Legendary or Mythical Raid Boss(es)* indicates a guaranteed first encounter at that rank† indicates a one-time guaranteed encounter§ indicates the encounter cannot be Shiny
===Seasonal Rewards===
At the end of each season, all players who ranked up receive a Premium Battle Pass and Stardust according to their rank. The Stardust reward can be further boosted by using a Star Piece.
As of Season 6, players can also earn one Elite Fast TM and one Elite Charged TM per season by reaching Rank 19. The Elite Charged TM is received upon ranking up while the Elite Fast TM is given at the end of the season.
Rank 	Stardust	Rank 	Stardust
1 	- 	11 	14,000
2 	2,000 	12 	18,000
3 	2,000 	13 	22,000
4 	4,000 	14 	28,000
5 	4,000 	15 	32,000
6 	6,000 	16 	40,000
7 	6,000 	17 	50,000
8 	8,000 	18 	60,000
9 	10,000 	19 	74,000
10 	12,000 	20 	90,000
Ace 	110,000 	110,000	110,000
Veteran	134,000 	134,000	134,000
Expert 	164,000 	164,000	164,000
Legend 	200,000 	200,000	200,000
===Cosmetic Rewards===
Reaching certain ranks may unlock cosmetic items and poses for the player character to wear, most inspired by characters from other Pokémon games. Each season features a unique cosmetic set as a reward, aside from Season 5. Obtaining these typically requires reaching rating-based ranks, so they cannot be obtained by winning a set number of battles alone. Pikachu Libre-themed clothing is available every season.
Season-exclusive rewards:
* Season 1: Steven Stone clothing and pose
* Season 2: Hype pose
* Season 3: Blue clothing and pose
* Season 4: Poké Ball Show-Off pose
* Season 5: No exclusive reward.
* Season 6: N clothing and pose
* Season 7: Elesa clothing and pose
* Season 8: Korrina clothing and pose
* Season 9: Leon clothing and pose
* Season 10: Lysandre clothing and pose
* Interlude Season: Gladion clothing and pose
* Season 11: Bea clothing and pose
* Season 12: Guzma clothing and pose
* Season 13: new Steven Stone clothing and pose
* Season 14: Palmer clothing and pose
==Special Leagues and Cups==
In addition to the regular Great, Ultra, and Master Leagues, some seasons also offer restricted leagues where Pokémon must meet additional requirements to be used.
* The Little Cup uses a limit of 500 CP and is the only format not based on the three regular leagues. The low CP limit allows many unevolved Pokémon not powerful enough for other leagues to compete. Different appearances of the Little Cup handle evolutionary lines differently: some only allow Pokémon that can evolve and are first in their evolutionary line to enter, while others have no such restriction.
* In the Classic version of a League or Cup, only Pokémon up to level 40 (or level 41 with an active Best Buddy boost) may be used. Pokémon that have been powered up using Candy XL are ineligible. Classic leagues were introduced in Season 6 alongside the Candy XL mechanic. Once Candy XL became easier to obtain, the final Classic leagues were held in Season 13.
* In the Premier Cup, all Legendary and Mythical Pokémon (including , , and Ultra Beasts) are ineligible. The Premier Cup was introduced for the Master League in Season 2 and for the Ultra League in Season 3. Premier Classic cups ran from Season 9 through Season 13.
* In the Remix versions of a League or Cup, Pokémon that were particularly powerful in its previous non-Remix appearance are not eligible, typically those most common Pokémon above Ace rank. On some occasions, unusually-powerful Pokémon that were too difficult to obtain to meet usage requirements are ineligible as well.
:* Season 7's Great League Remix banned the 10 most common Pokémon: Venusaur, Raichu (both forms), Marowak (both forms), Azumarill, Umbreon, Skarmory, Swampert, Galvantula, Stunfisk (both forms), and Talonflame.
:* Season 8's Great League Remix banned the 20 most common Pokémon above Ace rank: Venusaur, Alolan Ninetales, Alolan Marowak, Meganium, Azumarill, Politoed, Umbreon, Skarmory, Swampert, Pelipper, Vigoroth, Medicham, Altaria, Defense Forme Deoxys, Bastiodon, Toxicroak, Scrafty, Galvantula, Galarian Stunfisk, and Talonflame.
:* Season 8's Ultra League Remix banned the 20 most common Pokémon above Ace rank: Venusaur, Charizard, Clefable, Poliwrath, Alolan Muk, Gyarados, Lapras, Articuno, Umbreon, Scizor, Swampert, Registeel, Empoleon, Togekiss, Altered Forme Giratina, Cresselia, Escavalier, Talonflame, Melmetal, and Obstagoon.
:* Season 9's Great League Remix banned the 20 most common Pokémon above Ace rank: Venusaur, Alolan Ninetales, Alolan Marowak, Azumarill, Politoed, Umbreon, Skarmory, Swampert, Pelipper, Vigoroth, Sableye, Medicham, Altaria, Defense Forme Deoxys, Bastiodon, Scrafty, Jellicent, Galvantula, Galarian Stunfisk, and Talonflame.
:* Season 9's Ultra League Remix banned the 10 most common Pokémon above Ace rank: Clefable, Alolan Muk, Swampert, Empoleon, Togekiss, Altered Forme Giratina, Cresselia, Talonflame, Melmetal, and Obstagoon.
:* Season 10's Great League Remix banned the 20 most common Pokémon above Ace rank: Venusaur, Nidoqueen, Alolan Ninetales, Azumarill, Umbreon, Skarmory, Swampert, Vigoroth, Sableye, Medicham, Altaria, Defense Forme Deoxys, Bastiodon, Scrafty, Jellicent, Galvantula, Galarian Stunfisk, Mandibuzz, Talonflame, and Obstagoon.
:* Season 10's Ultra League Remix banned the 10 most common Pokémon above Ace rank: Venusaur, Alolan Muk, Umbreon, Swampert, Empoleon, Togekiss, Altered Forme Giratina, Cresselia, Talonflame, and Obstagoon.
:*Season 11’s Great League Remix banned the 20 most common Pokémon above Ace rank: Venusaur, Nidoqueen, Alolan Ninetales, Azumarill, Umbreon, Skarmory, Swampert, Sableye, Medicham, Altaria, Walrein, Defense Forme Deoxys, Bastiodon, Drapion, Scrafty, Jellicent, Galarian Stunfisk, Talonflame, Trevenant, and Obstagoon.
:* Season 11’s Little Cup Remix banned the four most common Pokémon used in the last Little Cup from the Interlude season: Kantoian Vulpix, Bronzor, Cottonee and Deino.
:* Season 12’s Little Jungle Cup Remix banned the three most common Pokémon above Ace rank: Skorupi, Cottonee, and Ducklett, as well as Salandit, in addition to the normally-banned Shuckle and Smeargle.
:* Season 12’s Element Cup Remix banned the three most common Pokémon used above Ace rank: Chinchou, Cottonee, and Ducklett, as well as Salandit.
:*Season 13’s Great League Remix banned the 20 most common Pokémon above Ace rank: Venusaur, Nidoqueen, Alolan Ninetales, Lickitung, Lanturn, Azumarill, Umbreon, Skarmory, Swampert, Sableye, Medicham, Altaria, Walrein, Registeel, Defense Forme Deoxys, Bastiodon, Scrafty, Galarian Stunfisk, Talonflame, and Trevenant.
:* Season 13’s Great League Fighting Cup Remix banned Hakamo-o, Kommo-o, Buzzwole, and Sneasler.
A wide variety of themed cups only allow Pokémon matching a particular theme to enter. Themed cups may be held in the Great League, Ultra League, or Little Cup, and some cups have been held in multiple leagues. To date there has never been a themed Master League cup.
* The Kanto Cup only allows Pokémon with Pokédex numbers through to battle. Non-Kanto regional forms are allowed.
* The Johto Cup only allows Pokémon with Pokédex numbers from to to battle.
* The Hoenn Cup only allows Pokémon with Pokédex numbers from to to battle.
* The Sinnoh Cup only allows Pokémon with Pokédex numbers from to to battle.
* The Hisui Cup only allows Pokémon with Pokédex numbers from to or Hisuian forms to battle.
* The Retro Cup only allows Pokémon with the original 15 Types to battle. Dark-, Steel-, and Fairy-type Pokémon are not eligible.
* The Halloween Cup only allows Poison-, Ghost-, Bug-, Dark-, and Fairy-type Pokémon to battle.
* The Holiday Cup only allows Normal-, Grass-, Electric-, Ice-, Flying-, and Ghost-type Pokémon to battle.
* The Love Cup only allows red or pink Pokémon to battle.
* The Spring Cup only allows Water-, Grass-, and Fairy-type Pokémon to battle. Toxapex is not eligible.
* The Element Cup only allows Fire-, Water-, and Grass-type Pokémon to battle.
* The Fossil Cup only allows Water-, Rock- and Steel-type Pokémon to battle.
* The Willpower Cup only allows Fighting-, Psychic- and Dark-type Pokémon. Gardevoir is not eligible.
* The Weather Cup only allows Fire-, Water-, Ice- and Rock-type Pokémon to battle.
* The Fantasy Cup only allows Dragon-, Steel-, and Fairy-type Pokémon to battle. Galarian Stunfisk and Cobalion are not eligible.
* The Color Cup only allows Fire-, Water-, Grass-, and Electric-type Pokémon to battle.
* The Mountain Cup only allows Ice-, Ground-, Rock- and Steel-type Pokémon to battle. Swampert is not eligible.
* The Sunshine Cup only allows Normal-, Fire-, Grass-, and Ground-type Pokémon to battle. Charizard is not eligible.
* The Flying Cup only allows Flying-type Pokémon to battle.
* The Fighting Cup only allows Fighting-type Pokémon. Psychic-type Pokémon are not eligible.
* The Psychic Cup only allows Psychic-type Pokémon. Mew is not eligible.
* The Electric Cup only allows Electric-type Pokémon. Unovan Stunfisk, Heliolisk, Charjabug and Vikavolt are not eligible.
* The Catch Cup only allows Pokémon caught recently, usually in the current season, to battle. Mythical Pokémon are not eligible.
* The Evolution Cup only allows Pokémon that have evolved and can evolve again to battle.
* The Little Jungle Cup only allows Normal-, Grass-, Electric-, Poison-, Ground-, Flying-, Bug-, and Dark-type Pokémon to battle. Shuckle and Smeargle are not eligible.
==GO Battle League Events==
Various events in Pokémon GO feature the GO Battle League in some capacity. This can include bonuses like competitively-viable Pokémon appearing in the wild, special set rewards, research tasks for battling, Pokémon learning exclusive moves when evolved, and more.
* Season 11
** August 18 to 23, 2022: Pokémon World Championships.Pokémon World Championships event announcement Great League and Fighting Cup were active. Players could complete 10 sets per day. Timed Research was available. Rhyperior, Gengar, Gyarados, Metagross, and Talonflame evolved during the event knew their Community Day moves.
===GO Battle Days===
GO Battle Days are a recurring weekend event where players can complete 20 sets of battles rather than the usual 5. These were introduced in Season 4 as GO Battle Nights, running from 6 PM to 11:59 PM local time, but were changed as of Season 9 to last an entire day. Season 11 introduced GO Battle Weekends which last a full weekend but otherwise function similarly.
Many GO Battle Days feature exclusive bonuses such as event Timed Research, a specific Pokémon in rewards, or allowing Pokémon to learn exclusive moves when evolved. During each event, players also receive bonus Stardust from GO Battle League. Battle Nights in Season 4 rewarded 2× Stardust and in Season 8 rewarded 3× Stardust. Starting with Season 9, Battle Days reward 4× Stardust from reward bundles but do not affect the Stardust awarded at the end of sets.
* Season 4
** November 5, 2020: All 3 leagues, the Ultra Premier Cup, and the Flying Cup were available. Pidgeot obtained during the event knew the move Gust.
* Season 8
** June 3, 2021: Great League was available.
** July 11, 2021: Master League, Master League Classic, and Element Cup were available.
** August 26, 2021: All 3 leagues were available.
* Season 9
** September 18, 2021: Ultra League and Ultra League Remix were available.
** November 1, 2021: Ultra League, Ultra League Premier Classic, and Halloween Cup were available.
** November 20, 2021: Master League, Master League Premier Classic, and Kanto Cup were available.
* Season 10
** January 8, 2022: Master League and Master League Classic were available.
** January 23, 2022: Great League and Sinnoh Cup were available.
** February 6, 2022: Ultra League and Ultra League Premier Classic were available.
* Interlude Season
** March 5, 2022: Great League and Johto Cup were available. During limited event hours, all reward encounters were Seel, and Dewgong evolved during the event knew the moves Ice Shard and Icy Wind
** April 17, 2022: Great League and Little Cup were available. Timed research awarding XP was available.
** May 29, 2022: All 3 Leagues were available. Niantic promised a "Mega surprise", which turned out to be allowing Mega Evolution in all Leagues during the event.
* Season 11
** June 18, 2022: Master League and Fossil Cup were available. During limited event hours, all reward encounters were Mankey, and Primeape evolved during the event knew the move Cross Chop.
** July 9 to 10, 2022: Anniversary Event Battle Weekend.Anniversary Event and Battle Weekend announcement All 3 leagues were available. Players could complete 20 sets per day. Fully evolved first partner Pokémon previously featured in Community Days knew their Community Day moves when evolved during the event, including Charizard knowing Dragon Breath. Legendary Pokémon were available through set rewards starting at Rank 16 instead of the usual Rank 20 5× Stardust win rewards.
* Season 12
** October 1, 2022: Master League and Master League Premier Classic were available. Timed research awarding Guzma cosmetic items was available.
** November 6, 2022: Ultra League and Willpower Cup were available. During limited event hours, all reward encounters were Miltank.
* Season 13
** January 14 and 15, 2023: All 3 leagues were available. Timed research awarding Steven Stone cosmetic items was available.
** February 12, 2023: Ultra League and Great League Love Cup were available. During limited event hours, all reward encounters were Vulpix, and Ninetales evolved during the event knew the move Ember.
* Season 14
** March 25, 2023: Ultra League and Great League Mountain Cup were available. Timed research awarding Palmer cosmetic items was available.
** May 14, 2023: Ultra League and Great League Sunshine Cup were available. Paid timed research awarding Stardust was available.
==Season Schedules==
;PreseasonBattle other Trainers globally soon—the GO Battle League has started rolling out!
* Great League: January 28 - February 10, 2020
* Ultra League: February 10–24, 2020
* Master League: February 24 - March 5, 2020
* All 3 Leagues: March 5–13, 2020
;Season 1Season 1 announcement
* Great League: March 13–27, 2020
* Ultra League: March 27 - April 10, 2020
* Master League: April 10–24, 2020
* All 3 Leagues: April 24 - May 1, 2020
;Season 2Season 2 announcement
* Great League: May 1 - June 1, 2020
* Ultra League: June 1–15, 2020
* Master League and Premier Cup: June 15–29, 2020
* All 3 Leagues and Master Premier Cup: June 29 - July 6, 2020
;Season 3Season 3 announcement
* Great League: July 27 - August 10, 2020
* Ultra League and Premier Cup: August 10–24, 2020
* Master League and Premier Cup: August 24 - September 7, 2020
* All 3 Leagues and Master Premier Cup: September 7–14, 2020
;Season 4Season 4 announcement
* Great League: September 14–28, 2020
* Ultra League and Premier Cup: September 28 - October 12, 2020
* Master League and Premier Cup: October 12–26, 2020
* Halloween Cup: October 26 - November 3, 2020
* All 3 Leagues and Master Premier Cup: November 3–9, 2020
;Season 5Season 5 announcement
* Little Cup: November 9–16, 2020
* Kanto Cup: November 16–23, 2020
* Catch Cup: November 23–30, 2020
;Season 6Season 6 announcement
* Great League: November 30 - December 14, 2020
* Ultra League and Premier Cup: December 14–28, 2020
* Master League, Premier Cup, Master League Classic, and Holiday Cup: December 28, 2020 - January 4, 2021
* All 3 Leagues and Ultra Premier Cup: January 4–11, 2021
* Great League: January 11–25, 2021
* Ultra League and Premier Cup: January 25 - February 8, 2021
* Master League, Premier Cup, Master League Classic, and Love Cup: February 8–15, 2021
* All 3 Leagues and Ultra Premier Cup: February 15–22, 2021
* Kanto Cup (unrated): February 22 - March 1, 2021
;Season 7Season 7 announcement
* Great League: March 1–15, 2021
* Ultra League and Premier Cup: March 15–29, 2021
* Master League, Master League Classic, and Great League: March 29 - April 5, 2021
* All 3 Leagues: April 5–12, 2021
* Great League and Great League Remix: April 12–26, 2021
* Ultra League and Premier Cup: April 26 - May 10, 2021
* Master League, Master League Classic, and Retro Cup: May 10–17, 2021
* All 3 Leagues: May 17–24, 2021
* Kanto Cup (unranked): May 24–31, 2021
;Season 8Season 8 announcement
* Great League: May 31 - June 14, 2021
* Ultra League and Premier Cup: June 14–28, 2021
* Master League, Master League Classic, and Element Cup: June 28 - July 12, 2021
* Great League and Great League Remix: July 12–26, 2021
* Ultra League and Ultra League Remix: July 26 - August 9, 2021
* Master League, Master League Classic, and Ultra League Premier Cup: August 9–23, 2021
* All 3 Leagues: August 23–30, 2021
;Season 9Season 9 announcement
* Great League and Great League Remix: August 30 - September 13, 2021
* Ultra League and Ultra League Remix: September 13–27, 2021
* Master League, Master League Classic, and Little Jungle Cup: September 27 - October 11, 2021
* Great League and Halloween Cup: October 11–25, 2021
* Ultra League, Ultra League Premier Classic, and Halloween Cup: October 25 - November 2, 2021
* Ultra League and Ultra League Premier Classic: November 2–8, 2021
* Master League, Master League Premier Classic, and Kanto Cup (Player's Choice): November 8–22, 2021
* All 3 Leagues: November 22–29, 2021
;Season 10Season 10 announcement
* Great League and Great League Remix: November 29 - December 13, 2021
* Ultra League and Ultra League Remix: December 13–16, 2021
* Ultra League, Ultra League Remix, and Holiday Cup: December 16–27, 2021
* Master League, Master League Classic, and Holiday Cup: December 27–31, 2021
* Master League and Master League Classic: December 31, 2021 - January 10, 2022
* Great League and Sinnoh Cup: January 10–24, 2022
* Ultra League and Ultra League Premier Classic: January 24 - February 7, 2022
* Master League, Master League Premier Classic, and Love Cup: February 7–21, 2022
* All 3 Leagues and Johto Cup: February 21 - March 1, 2022
;Interlude SeasonInterlude Season announcement
* Great League and Johto Cup: March 1–8, 2022
* Ultra League and Ultra League Premier Classic: March 8–15, 2022
* Master League and Love Cup: March 15–22, 2022
* Great League and Little Jungle Cup: March 22–29, 2022
* Ultra League and Catch Cup: March 29 - April 5, 2022
* Master League and Halloween Cup: April 5–12, 2022
* Great League and Little Cup: April 12–19, 2022
* Ultra League and Retro Cup: April 19–26, 2022
* Master League and Kanto Cup: April 26 - May 3, 2022
* Great League and Flying Cup: May 3–10, 2022
* Ultra League and Element Cup: May 10–17, 2022
* Master League and Master League Premier Classic: May 17–24, 2022
* All 3 Leagues: May 24 - June 1, 2022
;Season 11Season 11 announcement
* Great League and Great League Remix: June 1–8, 2022
* Ultra League and GO Fest Catch Cup: June 8–15, 2022
* Master League and Fossil Cup: June 15–22, 2022
* Great League and Retro Cup: June 22–29, 2022
* Ultra League and Kanto Cup: June 29 - July 6, 2022
* All 3 Leagues: July 6–13, 2022
* Great League and Flying Cup: July 13–20, 2022
* Ultra League and Little Cup Remix: July 20–27, 2022
* Master League and Hisui Cup: July 27 - August 3, 2022
* Great League and Element Cup: August 3–10, 2022
* Ultra League and Summer Cup: August 10–17, 2022
* Great League and Fighting Cup: August 17–24, 2022
* All 3 Leagues: August 24 - September 1, 2022
;Season 12 (Season of Light)Season 12 announcement
* Great League and Little Jungle Cup Remix: September 1–8, 2022
* Great League and Psychic Cup: September 8–15, 2022
* Ultra League and Ultra League Weather Cup: September 15–22, 2022
* Ultra League and Ultra Premier Classic: September 22–29, 2022
* Master League and Master Premier Classic: September 29 - October 6, 2022
* Master League and Evolution Cup: October 6–13, 2022
* All 3 Leagues: October 13–20, 2022
* Great League and Great League Halloween Cup: October 20–27, 2022
* Great League and Ultra League Halloween Cup: October 27 - November 3, 2022
* Ultra League and Willpower Cup: November 3–10, 2022
* Ultra League and Ultra Premier: November 10–17, 2022
* Master League and Element Cup Remix: November 17–24, 2022
* Master League and Catch Cup: November 24 - December 1, 2022
;Season 13 (Season of Mythical Wishes)Season 13 announcement
*Great League and Great League Remix: December 1–8, 2022
*Great League and Great League Fighting Cup Remix: December 8–15, 2022
*Ultra League and Ultra Premier Classic: December 15–22, 2022
*Ultra League and Great League Holiday Cup: December 22–29, 2022
*Master League and Ultra League Holiday Cup: December 29, 2022 - January 5, 2023
*Master League and Master Premier Classic: January 5–12, 2023
*All 3 Leagues: January 12–19, 2023
*Great League and Great League Weather Cup: January 19–26, 2023
*Great League and Great League Electric Cup: January 26 - February 2, 2023
*Ultra League and Ultra Premier: February 2–9, 2023
*Ultra League and Great League Love Cup: February 9–16, 2023
*Master League and Master Premier: February 16–23, 2023
*Mega Master League and Great League Hoenn Cup: February 23 - March 1, 2022
;Season 14 (Season of Rising Heroes)Season 14 announcement
* Great League and Ultra League Fantasy Cup: March 1–8, 2022
* Great League and Great League Color Cup: March 8–15, 2022
* Ultra League and Great League Psychic Cup: March 15–22, 2022
* Ultra League and Great League Mountain Cup: March 22–29, 2022
* Master League and Little Cup: March 29 - April 5, 2022
* Master League and Great League Spring Cup: April 5–12, 2022
* All 3 Leagues and Great League Evolution Cup: April 12–19, 2022
* Great League and Ultra League Weather Cup: April 19–26, 2022
* Great League and Master Premier Cup: April 26 - May 3, 2022
* Ultra League and Little Cup: May 3–10, 2022
* Ultra League and Great League Sunshine Cup: May 10–17, 2022
* Master League and Little Element Cup: May 17–24, 2022
* Master League and Catch Cup: May 24 - June 1, 2022
==Trivia==
* In Season 12's Evolution Cup, Ursaring was eligible for battle despite Ursaluna being unobtainable legitimately at the time.
* In the Season of Hidden Gem's Single-Type Cup, Galarian and Galarian can be used despite being dual typed.
** Galarian could also be used, but it was fixed.
** Despite not being released at the time of the cup, was not allowed, as shown in the cup rules. It was represented by a colored rectangle rather than a sprite.
==In other languages==
==References==
Category:Pokémon GO
de:GO-Kampfliga
es:Liga Combates GO
ja:GOバトルリーグ
zh:對戰（Pokémon GO）#GO對戰聯盟