# 2021 in K-1

The year 2021 is the 28th year in the history of the K-1, a Japanese kickboxing promotion. The year started with K-1: K’Festa 4.

## List of events

| # | Event Title | Date | Arena | Location |
| 1 | K-1: K’Festa 4 Day 1 | March 21, 2021 | Tokyo Garden Theater | Tokyo, Japan |
| 2 | K-1: K’Festa 4 Day 2 | March 28, 2021 | Nippon Budokan | Tokyo, Japan |
| 3 | K-1 World GP 2021: Japan Bantamweight Tournament | May 30, 2021 | Yokohama Budokan | Naka-ku, Yokohama, Japan |
| 4 | K-1 World GP 2021 in Fukuoka | July 17, 2021 | Fukuoka Convention Center | Fukuoka, Japan |
| 5 | K-1 World GP 2021: Yokohamatsuri | September 20, 2021 | Yokohama Arena | Yokohama, Japan |
| 6 | K-1 World GP 2021 in Osaka | December 4, 2021 | Osaka Prefectural Gymnasium | Osaka, Japan |

## K-1: K’Festa 4

K-1: K'Festa 4 was a kickboxing event held by K-1. It was originally scheduled to be held on January 24, 2021, at the Yoyogi National Gymnasium in Yoyogi, Japan, but was later postponed as the Japanese prime minister Yoshihide Suga declared a state of emergency for Tokyo, due to the COVID-19 pandemic. The event was rescheduled for two dates: March 21 and March 28, 2021, to be held at the Tokyo Garden Theater and Nippon Budokan, respectively.

### Background
#### Originally scheduled fights

The event was supposed to be headlined by a match between the reigning K-1 Super Featherweight champion Takeru Segawa and the reigning Krush Super Featherweight champion Leona Pettas.
Former K-1 Heavyweight champion Kyotaro Fujimoto was to make his comeback to kickboxing, following a ten-year hiatus. He is scheduled to fight Kosuke Jitsutaka.
Former K-1 Super Lightweight champion Rukiya Anpo was scheduled to fight Kaito. Yuto Shinohara was set to face Yuma Saikyo, with both fighters coming off a two fight losing skid. Tomoya Yokoyama was to fight TETSU, while Akihiro Kaneko was set to fight Momotaro Kiyama.
2019 K-1 Featherweight GP finalist Jawsuayai Sor.Dechaphan was scheduled to fight Shuhei Kumura, while his brother Masashi Kumura was scheduled to fight Dansiam Ayothaya Fight Gym. The 2017 super welterweight finalist Yasuhiro Kido was scheduled to fight Daiki Matsushita. Former K-1 Super Lightweight champion Masaaki Noiri was scheduled to fight Yodkhunpon Sitmonchai.
The rest of the main card was rounded up with the following fights: Hiroki was to fight Ryuka at lightweight, Mio Tsumura was to fight Mako Yamada at a 46 kg catchweight, Kamlaiphet Pran26 was to fight Daisuke Fujimura at super welterweight, Petchseenil Sor.Puangthong was to fight Miho Takanashi at atomweight and Sina Karimian was to fight Seiya Tanigawa at cruiserweight.

## K'Festa 4 Day 1
### March 21st event

The card will be headlined by a rematch between Yuki Egawa and Tatsuya Tsubakihara for the K-1 Featherweight title. The two previously fought at the K-1 World GP 2020 in Osaka, with Tsubakihara winning a majority decision.
In the co-main event, the K-1 Super Lightweight champion Hideaki Yamazaki is scheduled to fight Fukashi Mizutani in a non-title bout.
Former two-time Krush Welterweight title challenger Kaisei Kondo will face Maki Dwansonpong. K-1 and Krush Cruiserweight title challenger Hisaki Kato is scheduled to fight Mahmoud Sattari.

### Fight Card

K-1: K'Festa 4 Day 1 :
| Weight Class | | | | Method | Round | Time | Notes |
| Featherweight 57.5 kg | Tatsuya Tsubakihara | def. | Yuki Egawa (c) | Ext.R Decision (Split) | 4 | 3:00 | For the K-1 Featherweight Championship. |
| Super Lightweight 65 kg | Hideaki Yamazaki | def. | Fukashi | KO (Left Jab) | 1 | 1:10 | |
| Super Featherweight 60 kg | Yuta Murakoshi | def. | Ryusei Ashizawa | Decision (Unanimous) | 3 | 3:00 | |
| Lightweight 63 kg | Koya Urabe | def. | Hikaru Hasumi | Decision (Unanimous) | 3 | 3:00 | |
| Catchweight 59 kg | Tatsuki Shinotsuka | def. | Kaito Ozawa | Ext.R Decision (Split) | 4 | 3:00 | |
| Welterweight 67.5 kg | Kaisei Kondo | def. | Maki Dwansonpong | Decision (Majority) | 3 | 3:00 | |
| Cruiserweight 90 kg | Mahmoud Sattari | def. | Hisaki Kato | KO (Knee to the head) | 2 | 0:26 | |
| Super Lightweight 65 kg | Vitor Tofanelli | def. | Hayato Suzuki | TKO (Doctor Stoppage) | 3 | 1:28 | |
| Cruiserweight 90 kg | Seiya Tanigawa | def. | RUI | Decision (Unanimous) | 3 | 3:00 | |
| Women's Atomweight 45 kg | Miyuu Sugawara | def. | Nozomi | Decision (Unanimous) | 3 | 3:00 | |
| Featherweight 57 kg | Taito Gunji | def. | Riku Morisaka | Decision (Unanimous) | 3 | 3:00 | |
| Lightweight 62.5 kg | Shuji Kawarada | def. | Hisaki Higashimoto | TKO | 1 | 1:20 | |
| Catchweight 75 kg | Katsuya Jinbo | def. | Julio Cesar Mori | Decision (Unanimous) | 3 | 3:00 | |
| Preliminary Card ||||||||
| Featherweight 57 kg | Yuta Matsuyama | def. | Suizu Sora | KO (High Knee) | 1 | 1:19 | |
| Bantamweight 53 kg | Koji Ikeda | def. | Eiki kurata | KO (Right Cross) | 2 | 1:55 | |
| Bantamweight 53 kg | Daiki Mine | def. | Kyosuke Takahashi | KO (Punches) | 3 | 1:19 | |
| Super Featherweight 60 kg | Natsuki Kitamura | draw | Koki Akada | Decision (Majority) | 3 | 3:00 | |

## K'Festa 4 Day 2
### March 28th event

The main event bout between Takeru Segawa and Leona Pettas for the K-1 Super Featherweight Championship will serve as the headliner. The heavyweight bout between Kyotaro and Kosuke Jitsutaka was likewise rescheduled. The fight between the former K-1 Lightweight champion Rukiya Anpo and Kaito was scrapped, as Anpo was forced to withdraw due to injury. Yodkhunpon Sitmonchai, Dansiam AyothayaFightGym, Kamlaiphet Pran26 and Petchseenil Sor Puangthong will all be unable to compete due to travel restrictions caused by the COVID-19 pandemic. TETSU versus Tomoya Yokoyama, MIO versus Mako Yamada, Akihiro Kaneko versus Momotaro Kiyama and Hiroki versus Ryuka were all rescheduled for this event as well.

### Fight Card

K-1: K'Festa 4 Day 2 :
| Weight Class | | | | Method | Round | Time | Notes |
| Super Featherweight 60 kg | Takeru (c) | def. | Leona Pettas | KO (Punches) | 2 | 1:10 | For the K-1 Super Featherweight Championship. |
| Cruiserweight 90 kg | Sina Karimian | def. | K-Jee (c) | KO (Spinning back fist) | 2 | 2:05 | For the K-1 Cruiserweight Championship. |
| Heavyweight 100 kg | Kyotaro | def. | Kosuke Jitsutaka | KO | 2 | 0:29 | |
| Cruiserweight 90 kg | Animal Koji | def. | Ryo Aitaka | Decision (Unanimous) | 3 | 3:00 | |
| Super Welterweight 70 kg | Yasuhiro Kido | def. | Daiki Matsushita | KO (Punches) | 2 | 2:47 | |
| Lightweight 63 kg | Gonnapar Weerasakreck | def. | Daiki Nagumo | KO (Punches) | 2 | 1:31 | |
| Welterweight 67.5 kg | Masaaki Noiri | def. | Phlaychumphon Sor. Srisomphong | Decision (Unanimous) | 3 | 3:00 | |
| Super Bantamweight 55 kg | Masashi Kumura | def. | Dawsakhon Mor.Tassanai | KO (Right Cross) | 2 | 1:56 | |
| Lightweight 62.5 kg | Yuma Saikyo | def. | Yuto Shinohara | Decision (Split) | 3 | 3:00 | |
| Super Featherweight 60 kg | Tomoya Yokoyama | def. | Yusuke | KO (Left Cross) | 1 | 0:29 | |
| Super Bantamweight 55 kg | Akihiro Kaneko | def. | Momotaro Kiyama | TKO (Towel thrown) | 3 | 2:36 | |
| Super Featherweight 60 kg | Kotaro Shimano | def. | Yuki Miwa | Decision (Unanimous) | 3 | 3:00 | |
| Super Welterweight 70 kg | Abiral Ghimire | def. | Kotetsu | KO (Punches & Knee) | 1 | 2:21 | |
| Super Welterweight 70 kg | Mike Joe | def. | Eito | KO (Punches) | 2 | 0:45 | |
| Featherweight 57.5 kg | Shuhei Kumura | def. | Takahiro | Decision (Unanimous) | 3 | 3:00 | |
| Atomweight 48 kg | Miho Takanashi | def. | Mari | Ext.R Decision (Split) | 4 | 3:00 | |
| Catchweight 46 kg | MIO | def. | Mako Yamada | Decision (Unanimous) | 3 | 3:00 | |
| Welterweight 67.5 kg | Ayinta Ali | def. | Kaito | KO (Right Cross) | 3 | 2:30 | |
| Lightweight 62.5 kg | Ryuka | def. | Hiroki | TKO (3 Knockdowns/Punches) | 1 | 2:22 | |
| Preliminary Card ||||||||
| Featherweight 57.5 kg | Naoki Takahashi | def. | Masafumi Kurasaki | TKO (Punches) | 2 | 1:37 | |
| Super Featherweight 60 kg | Kazuki Sagegami | def. | Kenshin Kodama | Decision (Unanimous) | 3 | 3:00 | |
| Women's Minimumweight | Mirei | def. | Keito Weerasakreck | Decision (Unanimous) | 3 | 3:00 | |
| Lightweight 62.5 kg | Koji Suzuki | def. | Jin Hatori | KO (Punches) | 1 | 1:19 | |

## K-1 World GP 2021: Japan Bantamweight Tournament

K-1 World GP 2021: Japan Bantamweight Tournament was a kickboxing event held by K-1 originally scheduled for May 23, 2021, at the Ota City General Gymnasium in Tokyo, Japan. Due to a state of emergancy imposed as a way to combat the COVID-19 pandemic, the event was later rescheduled for May 30, 2021, to be held at the Yokohama Budokan in Naka-ku, Yokohama, Japan.

### Background

K-1 Featherweight champion Tatsuya Tsubakihara is expected to face Shuhei Kumura in a non-title bout.
Former K-1 Lightweight champion Kenta Hayashi was scheduled to fight Vitor Tofanelli.
The 2018 Super Featherweight champion Kotaro Shimano was set to fight Sano Tenma at super featherweight.
The event featured an eight-man bantamweight tournament, contested solely by Japanese fighters. Mao Hashimoto was later replaced by Naoki Ōmura.
Momotaro was scheduled to face Narufumi Nishimoto in a featherweight bout. A second featherweight bout announced for the event was contested by TOMA and Yusho Kanemoto.
Junki Sasaki was scheduled to fight in a 56 kg catchweight bout against Rat EiwaSportsGym, the highest he has ever weighed in at. Katsuya Jinbo was to fight Aqil Bukhari at a 75 kg catchweight.
Former Shootboxing Minimumweight champion Mio Tsumura was scheduled to fight the Krush atomweight champion Miyuu Sugawara. A second atomweight bout announced for the event was a matchup between MOE and Yu.

#### K-1 Japan Bantamweight Tournament bracket

| Quarter-Finals | Quarter-Finals | Quarter-Finals | Semi-Finals | Semi-Finals | Semi-Finals | Final | Final | Final |
| Toma Kuroda | Toma Kuroda | KO | | | | | | |
| Koji Ikeda | Koji Ikeda | 1r. | | | | | | |
| Koji Ikeda | Koji Ikeda | 1r. | Toma Kuroda | Toma Kuroda | UD | | | |
| | | | Hinata Matsumoto | Hinata Matsumoto | 3r. | | | |
| Hinata Matsumoto | Hinata Matsumoto | UD | Hinata Matsumoto | Hinata Matsumoto | 3r. | | | |
| Yuya Uzawa | Yuya Uzawa | R3 | | | | | | |
| Yuya Uzawa | Yuya Uzawa | R3 | | | | Toma Kuroda | Toma Kuroda | KO |
| | | | | | | Kazuki Miburo | Kazuki Miburo | 1r. |
| Kazuki Miburo | Kazuki Miburo | MD | | | | | | | Kazuki Miburo | Kazuki Miburo | 1r. |
| Aoi Noda | Aoi Noda | 3r. | | | | | | |
| Aoi Noda | Aoi Noda | 3r. | Kazuki Miburo | Kazuki Miburo | ER | | | |
| | | | Naoki Omura | Naoki Omura | 4r. | | | |
| Naoki Omura | Naoki Omura | ER | Naoki Omura | Naoki Omura | 4r. | | | |
| Shuto Hagiwara | Shuto Hagiwara | 4r. | | | | | | |

### Fight Card

K-1 World GP 2021: Japan Bantamweight Tournament :
| Weight Class | | | | Method | Round | Time | Notes |
| Bantamweight 53 kg | Toma Kuroda | def. | Kazuki Miburo | KO (Left Straight) | 1 | 0:31 | Japan Bantamweight Tournament Final. |
| Featherweight 57 kg | Tatsuya Tsubakihara | def. | Shuhei Kumura | Decision (Unanimous) | 3 | 3:00 | |
| Lightweight 62.5 kg | Kenta Hayashi | def. | Vitor Tofanelli | TKO (Three knockdowns) | 2 | 2:35 | |
| Catchweight 56 kg | Junki Sasaki | def. | Rat EiwaSportsGym | Decision (Unanimous) | 3 | 3:00 | |
| Women's Atomweight 45 kg | MIO | def. | Miyuu Sugawara | Decision (Majority) | 3 | 3:00 | |
| Bantamweight 53 kg | Kazuki Miburo | def. | Naoki Omura | Ext.R Decision (Unanimous) | 4 | 3:00 | Japan Bantamweight Tournament Semi Final. |
| Bantamweight 53 kg | Toma Kuroda | def. | Hinata Matsumoto | Decision (Unanimous) | 3 | 3:00 | Japan Bantamweight Tournament Semi Final. |
| Featherweight 60 kg | Narufumi Nishimoto | def. | Momotaro | TKO (Punches) | 2 | 1:06 | |
| Catchweight 75 kg | Katsuya Jinbo | def. | Aqil Bukhari | TKO (Punches) | 1 | 1:09 | |
| Super Featherweight 60 kg | Tenma Sano | def. | Kotaro Shimano | Decision (Unanimous) | 3 | 3:00 | |
| Featherweight 57 kg | TOMA | def. | Yusho Kanemoto | Decision (Unanimous) | 3 | 3:00 | |
| Women's Atomweight 45 kg | Yu | def. | MOE | Ext.R Decision (Unanimous) | 4 | 3:00 | |
| Bantamweight 53 kg | Toma Kuroda | def. | Koji Ikeda | KO (Knee) | 2 | 2:10 | Japan Bantamweight Tournament Quarter Final. |
| Bantamweight 53 kg | Hinata Matsumoto | def. | Yuya Uzawa | Decision (Unanimous) | 3 | 3:00 | Japan Bantamweight Tournament Quarter Final. |
| Bantamweight 53 kg | Kazuki Miburo | def. | Aoi Noda | Decision (Split) | 3 | 3:00 | Japan Bantamweight Tournament Quarter Final. |
| Bantamweight 53 kg | Naoki Omura | def. | Shuto Hagiwara | Ext.R Decision (Split) | 4 | 3:00 | Japan Bantamweight Tournament Quarter Final. |
| Preliminary Card ||||||||
| Super Featherweight 60 kg | Haru Furumiya | def. | Natsuki Kitamura | Decision (Unanimous) | 3 | 3:00 | |

## K-1 World GP 2021 in Fukuoka

K-1 World GP 2021 in Fukuoka was a kickboxing event held by K-1 on July 17, 2021, at the Fukuoka Convention Center in Fukuoka, Japan.

### Background

Gonnapar Weerasakreck was scheduled to make the first defense of his K-1 Lightweight Championship against Taio Asahisa.
Former K-1 Featherweight champion Yuki Egawa was scheduled to fight the two-time Krush Super Featherweight title challenger Tatsuya Oiwa. Egawa later withdrew from due bout due to COVID-19 protocols.
A lightweight bout between Koya Urabe and Fumiya Osawa was announced for the event. It was their fourth meeting, with Urabe having won two of their previous three bouts.
The co-main event saw the former K-1 Super Lightweight champion Rukiya Anpo was scheduled to fight Koki in a welterweight bout. The second welterweight bout saw Kota Nakano face Maki Dwansonpong.
A Cruiserweight bout between K-Jee and Ryo Aitaka was announced for the event.
A welterweight bout between Kota Nakano and Maki Dwansonpong was scheduled for the event.
BigBang Heavyweight champion Kosuke Jitsukata was scheduled to fight the undefeated Naoto Maruyama.
21-fight K-1 veteran Naoki Yamamoto was scheduled to fight Satoru Nariai at super featherweight.
Former Krush Super Featherweight champion Yuma Saikyo was scheduled to fight Tatsuki at lightweight.
A rematch between Miho Takanashi and MARI was announced for the event.

### Fight Card

K-1 World GP 2021 in Fukuoka :
| Weight Class | | | | Method | Round | Time | Notes |
| Lightweight 62.5 kg | Taio Asahisa | vs. | Gonnapar Weerasakreck (c) | Ext.R Decision (Split) | 4 | 3:00 | K-1 Lightweight Championship title. |
| Cruiserweight 90 kg | K-Jee | def. | Ryo Aitaka | KO (Low kick) | 2 | 1:04 | |
| Lightweight 62.5 kg | Koya Urabe | def. | Fumiya Osawa | Decision (Unanimous) | 3 | 3:00 | |
| Welterweight 67.5 kg | Rukiya Anpo | def. | Koki | KO (Punches) | 1 | 0:53 | |
| Exhibition | Maki Dwansonpong | ex. | Tatsuya Oiwa | | 2 | 2:00 | |
| Super Welterweight 70 kg | Hiromi Wajima | def. | Abiral Himalayan Cheetah | KO (Low kicks) | 3 | 2:23 | |
| Super Heavyweight 100+ kg | Kosuke Jitsukata | def. | Naoto Maruyama | KO (Left High kick) | 2 | 3:00 | |
| Lightweight 62.5 kg | Yuma Saikyo | def. | Tatsuki | Decision (Unanimous) | 3 | 3:00 | |
| Super Featherweight 60 kg | Naoki Yamamoto | def. | Satoru Nariai | Decision (Unanimous) | 3 | 3:00 | |
| Minimumweight 48 kg | Takanashi Knuckle Miho | def. | MARI | Decision (Unnanimous) | 3 | 3:00 | |
| W. Atomweight 46 kg | Mako Yamada | def. | Nozomi | Decision (Unanimous) | 3 | 3:00 | |
| Featherweight 57 kg | Takumi Terada | def. | Naoki Takahashi | Decision (Unanimous) | 3 | 3:00 | |
| Super Lightweight 65 kg | Fukashi | def. | Yosuke Tamura | KO (3 Knockdowns/Punches) | 1 | 1:53 | |
| Preliminary Card ||||||||
| Flyweight 51 kg | Tsubasa Yamawaki | def. | Shohei Nishibayashi | Decision (Majority) | 3 | 3:00 | |
| Super Bantamweight 55 kg | Lyra | def. | Shion | TKO (3 Knockdowns) | 1 | 2:40 | |
| Lightweight 62.5 kg | Kosei Kawakita | def. | Yudai | KO (Right Cross) | 2 | 1:15 | |

## K-1 World GP 2021: Yokohamatsuri

K-1 World GP 2021: Yokohamatsuri was a kickboxing event held by K-1 on September 20, 2021, at the Yokohama Arena in Yokohama, Japan.

### Background

The former K-1 lightweight champion Kenta Hayashi was scheduled to face the reigning Krush Super Lightweight titleholder Daizo Sasaki in a super lightweight bout.
Newly crowned Krush Women's flyweight champion Kotomi was scheduled to face Rikako Sakurai in a 53 kg catchweight bout.
Kaito Ozawa was scheduled to face Yuta Kuneida in a featherweight bout.
Hirotaka Asahisa was scheduled to face MOMOTARO in a super featherweight bout. Ryusei Ashizawa was scheduled to face Hirotaka Urabe in the second super featherweight bout of the main card.
A rematch between Yasuhiro Kido and Yutaro Yamauchi at super welterweight was announced for the event, eight years after their first meeting, which Kido won by unanimous decision.,
MMA veteran and Olympic Judo gold medalist Satoshi Ishii was scheduled to make his kickboxing debut against Ryo Aitaka in a super heavyweight bout.
Former K-1 heavyweight champion Kyotaro Fujimoto was scheduled to face the reigning K-1 Cruiserweight champion Sina Karimian in a heavyweight bout.
A one-night welterweight world Grand Prix was held during the event, featuring eight competitors: Rukiya Anpo, Alan Soares, Riki Matsuoka, Maki Dwansonpong, Kona Kato, Masaaki Noiri, Ruku Kojima and Ali Ayinta. On September 8, 2021, it was revealed that Kona Kato had to withdraw from his bout due to COVID-19 related reasons, and was replaced by FUMIYA. Daiku Kazuki was rescheduled to face Darvish Kurogi.
Toshiki Taniyama was scheduled to face the former Krush lightweight champion Yuto Shinohara in a lightweight bout.
A featherweight bout between the reigning Krush Featherweight champion Takahito Niimi and two-time Krush Super Bantamweight title challenger Taito Gunji was announced for the event.
Tatsuki Shinotsuka was scheduled to make his sophomore appearance against Toma Tanabe in a featherweight bout.
A bantamweight bout between two former Krush bantamweight champions, Koki and Akihiro Kaneko, was announced for the main card.

#### K-1 Welterweight Grand Prix bracket

| Quarter-Finals | Quarter-Finals | Quarter-Finals | Semi-Finals | Semi-Finals | Semi-Finals | Final | Final | Final |
| Ayinta Ali | Ayinta Ali | UD | | | | | | |
| Ruku Kojima | Ruku Kojima | R3. | | | | | | |
| Ruku Kojima | Ruku Kojima | R3. | Masaaki Noiri | Masaaki Noiri | KO | | | |
| | | | Ayinta Ali | Ayinta Ali | 1r. | | | |
| Masaaki Noiri | Masaaki Noiri | KO | Ayinta Ali | Ayinta Ali | 1r. | | | |
| FUMIYA | FUMIYA | 1r | | | | | | |
| FUMIYA | FUMIYA | 1r | | | | Masaaki Noiri | Masaaki Noiri | KO |
| | | | | | | Rukiya Anpo | Rukiya Anpo | 3r. |
| Rukiya Anpo | Rukiya Anpo | KO | | | | | | | Rukiya Anpo | Rukiya Anpo | 3r. |
| Alan Soares | Alan Soares | 1r. | | | | | | |
| Alan Soares | Alan Soares | 1r. | Rukiya Anpo | Rukiya Anpo | KO | | | |
| | | | Riki Matsuoka | Riki Matsuoka | 3r. | | | |
| Riki Matsuoka | Riki Matsuoka | ER | Riki Matsuoka | Riki Matsuoka | 3r. | | | |
| Maki Duangsompong | Maki Duangsompong | 4r. | | | | | | |

### Fight Card

K-1 World GP 2021 in Yohomatsuri :
| Weight Class | | | | Method | Round | Time | Notes |
| Welterweight 67.5 kg | Masaaki Noiri | def. | Rukiya Anpo | TKO (Three knockdowns) | 3 | 2:51 | Welterweight World GP Final. |
| Heavyweight 100 kg | Sina Karimian | def. | Kyotaro Fujimoto | Ext. R. Decision (Split) | 4 | 3:00 | |
| Super Lightweight 65 kg | Daizo Sasaki | def. | Kenta Hayashi | Decision (Unanimous) | 3 | 3:00 | |
| Super Featherweight 60 kg | Ryusei Ashizawa | def. | Hirotaka Urabe | Decision (Unanimous) | 3 | 3:00 | |
| Super Featherweight 60 kg | Yuta Murakoshi | def. | Narufumi Nishimoto | Decision (Unanimous) | 3 | 3:00 | |
| Super Featherweight 60 kg | Hirotaka Asahisa | def. | MOMOTARO | KO (Left hook) | 1 | 2:59 | |
| Super Welterweight 70 kg | Yasuhiro Kido | def. | Yutaro Yamauchi | TKO (Three knockdowns) | 2 | 2:25 | |
| Super Heavyweight 100+ kg | Satoshi Ishii | def. | Ryo Aitaka | Ext. R. Decision (Unanimous) | 4 | 3:00 | |
| Welterweight 67.5 kg | Rukiya Anpo | def. | Riki Matsuoka | KO (Body shot) | 3 | 2:35 | Welterweight World GP Semifinal. |
| Welterweight 67.5 kg | Masaaki Noiri | def. | Ali Ayinta | TKO (Two knockdowns) | 1 | 1:32 | Welterweight World GP Semifinal. |
| Featherweight 57.5 kg | Kaito Ozawa | def. | Yuta Kunieda | Decision (Unanimous) | 3 | 3:00 | |
| Featherweight 57.5 kg | Taito Gunji | def. | Takahito Niimi | Decision (Unanimous) | 3 | 3:00 | |
| Featherweight 57.5 kg | Toma Tanabe | def. | Yusuke | KO (Left straight) | 2 | 2:05 | |
| Catchweight Women 53 kg | Kotomi | def. | Rikako Sakurai | Decision (Unanimous) | 3 | 3:00 | |
| Super Bantamweight 55 kg | Akihiro Kaneko | def. | Koki | TKO (Three knockdowns) | 1 | 2:35 | |
| Lightweight 62.5 kg | Yuto Shinohara | def. | Toshiki Taniyama | Decision (Unanimous) | 3 | 3:00 | |
| Lightweight 62.5 kg | Ryuka | def. | Hasumi Hikaru | KO (Head kick) | 2 | 1:48 | |
| Welterweight 67.5 kg | Riki Matsuoka | def. | Maki Dwansonpong | TKO (Two knockdowns) | 2 | 3:00 | Welterweight World GP Quarterfinal. |
| Welterweight 67.5 kg | Rukiya Anpo | def. | Alan Soares | TKO (Two knockdowns) | 1 | 0:31 | Welterweight World GP Quarterfinal. |
| Welterweight 67.5 kg | Masaaki Noiri | def. | FUMIYA | KO (Right hook) | 1 | 2:10 | Welterweight World GP Quarterfinal. |
| Welterweight 67.5 kg | Ayinta Ali | def. | Ruku Kojima | Decision (Unanimous) | 3 | 3:00 | Welterweight World GP Quarterfinal. |
| Preliminary Card ||||||||
| Welterweight 67.5 kg | Daiku Kazuki | def. | Darvish Kurogi | KO (Right straight) | 1 | 2:45 | Welterweight World GP Reserve Fight. |
| Welterweight 67.5 kg | Takahiko Kobayashi | def. | Takuma Shimizu | KO (Right straight) | 2 | 2:10 | |

## K-1 World GP 2021 in Osaka

K-1 World GP 2021 in Osaka was a kickboxing event held by K-1 on December 4, 2021, at the Osaka Prefectural Gymnasium in Osaka, Japan.

### Background

A K-1 Featherweight Championship bout between the reigning champion Tatsuya Tsubakihara and title challenger Taito Gunji was announced as the main event.

### Fight Card

K-1 World GP 2021 Japan :
| Weight Class | | | | Method | Round | Time | Notes |
| Super Welterweight 70 kg | Hiromi Wajima | def. | Minoru Kimura | KO (Body kick) | 3 | 2:50 | For the K-1 Super Welterweight Championship. |
| Featherweight 57.5 kg | Taito Gunji | def. | Tatsuya Tsubakihara | Ext R. Decision (Split) | 4 | 3:00 | For the K-1 Featherweight Championship. |
| Super Lightweight 65 kg | Kenta Hayashi | def. | Fukashi Mizutani | Decision (Unanimous) | 3 | 3:00 | |
| Lightweight 62.5 kg | Gonnapar Weerasakreck | def. | Yuma Saikyo | Decision (Majority) | 3 | 3:00 | |
| Welterweight 67.5 kg | Rukiya Anpo | def. | Kaito | KO (Punches) | 1 | 1:52 | |
| Super Heavyweight 100+ kg | Satoshi Ishii | def. | Rui | Decision (Unanimous) | 3 | 3:00 | |
| Catchweight 61.5 kg | Leona Pettas | def. | Maki Chatchai | Decision (Unanimous) | 3 | 3:00 | |
| Super Lightweight 65 kg | Tetsuya Yamato | def. | Yujiro Ono | KO (Punches) | 3 | 0:28 | |
| Featherweight 57.5 kg | Shuhei Kumura | def. | Kizaemon Saiga | KO (Right Cross) | 1 | 1:07 | |
| Featherweight 57.5 kg | Toma Tanabe | def. | Riku Morisaka | Decision (Unanimous) | 3 | 3:00 | |
| Catchweight 52.5 kg | SAHO | def. | Mahiro | Decision (Unanimous) | 3 | 3:00 | |
| Bantamweight 53 kg | Toma Kuroda | def. | Kazuki Miburo | Ext.R Decision (Unanimous) | 4 | 3:00 | |
| Lightweight 62.5 kg | Fumiya Osawa | def. | Hiroki | Ext.R Decision (Unanimous) | 4 | 3:00 | |
| Cruiserweight 90 kg | Seiya Tanigawa | def. | Yuki Kudo | KO (Head kick) | 2 | 2:11 | |
| Women's Minimumweight 48 kg | Miho Takanashi | def. | Mirei | Decision (Unanimous) | 3 | 3:00 | |
| Lightweight 62.5 kg | Yuto Shinohara | def. | Katsuki Ishida | Decision (Unanimous) | 3 | 3:00 | |
| Catchweight 73 kg | Katsuya Jinbo | def. | EITO | TKO (Three knockdowns) | 1 | 1:37 | |
| Preliminary Card ||||||||
| Catchweight 51 kg | Daina | def. | Tsubasa Yamawaki | Decision (Unanimous) | 3 | 3:00 | |
| Super Featherweight 60 kg | Haru Furumiya | def. | Sergio Hano | Decision (Unanimous) | 3 | 3:00 | |
| Featherweight 57.5 kg | Ryota Ishida | vs. | Takaya Komatsu | | | | |
| Lightweight 62.5 kg | Yuya Miyake | def. | Rioya | TKO (Head kick and punches) | 2 | 0:36 | |