๐ŸŽ‚ Birthday Paradox ยท Sports
โ† All sports

Olympic Basketball

Team

24 team lists ยท 287 player entries ยท avg team size 12.0

Read this sport as a comparison between raw coincidence and what team size alone predicts. Here, the real rate is +16.7 points above the birthday-paradox baseline.

Real team lists
33.3%
teams with shared birthdays
Why it matters: This is the headline rate, but it should never be read without team size.
Expected from size
16.6%
from avg team size
Why it matters: This is the fair baseline: what same-size random teams would do.
Gap from expected
+16.7 points
real โˆ’ expected
Why it matters: Positive means the sport has more birthday matches than size alone predicts.
Team lists
24
teams analysed
Why it matters: Small sample: treat the rate as a lead, not a verdict.
What to notice: The best question on a sport page is not "is the real rate high?" but "is it high after accounting for team size?" That is what the gap card is answering.

Country comparison

Countries with the most team lists for Olympic Basketball, charted by the share of teams with at least one shared birthday.

Gender split inside this sport

Real and expected rates for labelled team lists in this sport.

Why it matters: The gender gap is mostly a team-size story. Women have the larger average team size here (12.0 athletes), so their birthday-match rate naturally rises.

By country

Top 40 countries by team-list count.

CountryTeam listsAvg playersReal
AUS212.00.0%
ESP212.00.0%
CAN212.0100.0%
FRA212.050.0%
SRB212.00.0%
JPN212.050.0%
GER212.050.0%
USA212.00.0%
PUR212.050.0%
BEL112.0100.0%
BRA112.00.0%
CHN112.0100.0%
GRE112.00.0%
NGR112.00.0%
SSD111.00.0%
What to notice: Countries with larger average teams will naturally show more shared birthdays. The country list is most useful for finding which samples are driving this sport's overall rate.

By gender

Where the dataset records it.

GenderTeam listsRealExpectedGap
Women1258.3%16.7%+41.6 points
Men128.3%16.5%-8.2 points

Sample team lists

Largest teams in the dataset.

TeamSeasonPlayersRepeatsExpected chance
Canada - Men ยท CAN2024 Summer12116.7%
Belgium - Women ยท BEL2024 Summer12116.7%
Canada - Women ยท CAN2024 Summer12116.7%
People's Republic of China - Women ยท CHN2024 Summer12116.7%
France - Women ยท FRA2024 Summer12116.7%
Germany - Women ยท GER2024 Summer12116.7%
Japan - Women ยท JPN2024 Summer12116.7%
Puerto Rico - Women ยท PUR2024 Summer12116.7%
Australia - Men ยท AUS2024 Summer12016.7%
Brazil - Men ยท BRA2024 Summer12016.7%
What to notice: The sample team lists show the mechanics: once the player count gets large, the expected chance climbs quickly, and each repeat is another player landing on a date already present.