FIBA World Ranking Girls, How it works
Games factored in the new FIBA World Ranking Girls
Games played by Girls’ U16 – U19 national teams in the most recent two occurrences ofthe following competitions:• FIBA U19 Women’s Basketball World Cup• FIBA U17 Women’s Basketball World Cup• FIBA U18 Women’s AfroBasket• FIBA U16 Women’s AfroBasket• FIBA U18 Women’s AmeriCup• FIBA U16 Women’s AmeriCup• FIBA U18 Women’s Asia Cup (Divisions A, B)• FIBA U16 Women’s Asia Cup(Divisions A, B)• FIBA U18 Women’s EuroBasket (Divisions A, B and C)• FIBA U16 Women’s EuroBasket (Divisions A, B and C)• FIBA U17 Women’s Oceania Cup
METHODTo calculate the FIBA World Ranking Girls, we require two stages:
1. Calculate the rating points (RP) for each game for each team; and2. Calculate the ranking according to the weighted average rating points of each team, overall games contributing to the ranking.
METHOD Stage 1 - Calculate each team's rating points allocated from each game.
Basis points
1,000 basis points (BP) are awarded in each game according to the following principles:• Win by a margin of 1-9 points-> receive 600 basis points• Win by a margin of 10-19 points-> receive 700 basis points• Win by a margin of 20 or more points-> receive 800 basis points• Lose by a margin of 1-9 points-> receive 400 basis points• Lose by a margin of 10-19 points-> receive 300 basis points• Lose by a margin of 20 or more points-> receive 200 basis points• In the event of a game being forfeited, the winning team receives 800 points (for avictory by a margin of 20 points) and the losing team gets 0 basis points
Strength of opposition factored inA win by a team against an opponent that is higher in the FIBA World Ranking Girls, means
the result will be worth more points for the winners.
The opposition ranking points (ORP) are given by:
ORP = 1.5 x (AVG ALL TEAM PRE-GAME RANKING – OPPONENT PRE-GAME RANKING)The ranking rewards teams for facing opponents ranked higher than them. The higher theopposition is ranked, the more points the team stands to get. As the best teams arenaturally ranked high, playing strong opponents means their ranking will be lower
numerically than the average all-team pre-game ranking. Therefore, this contribution will bepositive. Conversely, the weaker teams have higher than average rankings so thiscontribution will be negative. For more information, see these detailed examples.

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Scaling for Oceania and Divisions B and C
The FIBA U16 Women’s Asia Cup and the FIBA U18 Women’s Asia Cup are played across
2 divisions: Division A and Division B. The FIBA U16 Women’s EuroBasket and FIBA U18
Women’s EuroBasket are played across 3 divisions: Division A, Division B and Division C.
The FIBA U17 Women’s Oceania Cup is a qualifying tournament for the FIBA U18
Women’s Asia Cup. For all other games in other Championships there is only one level.
To reflect the different levels of Division B and Division C games, we apply a scaling factor(SF) to the rating points. Oceania and Division B games have a scaling factor of 0.5 andDivision C have a scaling factor of 0.33. Division A games, and all games from otherChampionships have a scaling factor of 1.
The final rating points (RP) for the game for a team are given by the following formula:
RP= SF x (BP + ORP)
RP: rating points
BP: basis points
ORP: opposition ranking points

METHOD Stage 2 - Updating the FIBA World Ranking Girls, at any time
To calculate the ranking at any particular time, we have to calculate the ratings for all teams
at that time and then rank them.
We calculate the ratings by taking a penalised weighted average of rating points from theirprevious games. To calculate the weighted average, we need to calculate the weight (W)for each game.
The weight is made up of the following factors:
FactorRecency of game
Region of competition teams
Division
Round

Description
Games are weighted depending on if they
were in the most recent occurrence of aChampionship or the previous occurrence.
Weights are given to the region of thecompetition to ensure competitive balance.
Weights are given according to the Divisionof the game
Weights are given to the round of thegame, with games in later rounds more
highly weighted.

Updated - December 2023
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Time decay using Championship recency (TD)A Championship recency factor is implemented to reward teams for most recent
performances and to prevent all games over the whole rating period from carrying thesame weight and receiving the exact same value.
Championship Recency (TD)Most recent occurrence of Championship
Second most recent occurrence ofChampionshipPrevious occurrences of Championship

Weight10.50 (not taken into consideration)

The reason for this is to add a form factor that rewards teams slightly more for better
results in recent history.
Competition and region weights (C)Weights are given to different competitions to reflect the prestige of the tournaments andto ensure that ratings are comparable across regions.
Competition/Region (C)FIBA Basketball Women’s World Cup(U17, U19)
Africa (U16, U18)
Americas (U16, U18)
Asia (U16, U18)
Europe (U16, U18)
Oceania (U17)

Weight
2.5
0.35
0.7
0.9
10.1

Division weight (D)Games in the FIBA Women’s Oceania Cup and Division B and Division C in the FIBA
Women’s Asia Cup and Women’s EuroBasket are given lower weight. All other games aregiven weight 1.
Division factor D
FIBA Women’s Asia Cup and FIBA
Women’s EuroBasket Division B and FIBA
Women’s Oceania Cup
FIBA Women’s EuroBasket Division CAll other games

Weight0.5
0.33
1Updated - December 2023
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Round weight (R)The new FIBA World Ranking Girls, introduces a weighting that works on a round basis,
with results of the winning team receiving greater weighting the further through aChampionship a team progresses. This does not apply to Division B and C Championships,
or for results of the losing team, where all rounds in receive the same weight (1).
Round (R)12
3
4
5Weight
1
2466

The final weighting W of a particular game in the penalized weighted average is given by
the formula: W = TD x C x D x RW: Final game rating
TD: Time decay using Championship recency
C: Competition and region weight
D: Division weight
R: Round weight
Click here to view detailed examples of how the FIBA World Ranking Girls, presented byNike, is calculated.
FlBA will continuously evaluate the implementation of the new ranking and may makenecessary adjustments.

Updated - December 2023
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