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

Olympic Rhythmic Gymnastics (Gymnastics)

Delegation

79 team lists ยท 543 player entries ยท avg team size 6.9

Read this sport as a comparison between raw coincidence and what team size alone predicts. Here, the real rate is +5.9 points above the birthday-paradox baseline.

Real team lists
11.4%
teams with shared birthdays
Why it matters: This is the headline rate, but it should never be read without team size.
Expected from size
5.5%
from avg team size
Why it matters: This is the fair baseline: what same-size random teams would do.
Gap from expected
+5.9 points
real โˆ’ expected
Why it matters: Positive means the sport has more birthday matches than size alone predicts.
Team lists
79
teams analysed
Why it matters: Enough team lists for a useful sport-level read.
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 Rhythmic Gymnastics (Gymnastics), charted by the share of teams with at least one shared birthday.

What to compare: This view is best for spotting sample-shape differences inside a sport. Among the highest-sample countries, BUL has the highest observed rate, with an average team size of 7.3.

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 (6.9 athletes), so their birthday-match rate naturally rises.

By country

Top 40 countries by team-list count.

CountryTeam listsAvg playersReal
BLR77.714.3%
BUL77.328.6%
ITA76.928.6%
ESP67.20.0%
RUS67.816.7%
JPN56.20.0%
UKR57.20.0%
GRE56.80.0%
CHN56.420.0%
ISR46.50.0%
GER47.30.0%
BRA46.00.0%
USA36.70.0%
FRA27.00.0%
AZE26.050.0%
UZB25.50.0%
AUS15.00.0%
GBR17.00.0%
CAN16.00.0%
ROC17.0100.0%
POL16.00.0%
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
Women7911.4%5.5%+5.9 points

Sample team lists

Largest teams in the dataset.

TeamSeasonPlayersRepeatsExpected chance
ITA Rhythmic Gymnastics (Gymnastics) (1996 Summer) ยท ITA1996 Summer817.4%
BUL Rhythmic Gymnastics (Gymnastics) (2004 Summer) ยท BUL2004 Summer817.4%
RUS Rhythmic Gymnastics (Gymnastics) (2004 Summer) ยท RUS2004 Summer817.4%
BUL Rhythmic Gymnastics (Gymnastics) (2008 Summer) ยท BUL2008 Summer817.4%
BLR Rhythmic Gymnastics (Gymnastics) (2012 Summer) ยท BLR2012 Summer817.4%
CHN Rhythmic Gymnastics (Gymnastics) (1996 Summer) ยท CHN1996 Summer715.6%
ITA Rhythmic Gymnastics (Gymnastics) (2000 Summer) ยท ITA2000 Summer715.6%
ROC Rhythmic Gymnastics (Gymnastics) (2020 Summer) ยท ROC2020 Summer715.6%
AZE Rhythmic Gymnastics (Gymnastics) (2020 Summer) ยท AZE2020 Summer512.7%
BLR Rhythmic Gymnastics (Gymnastics) (1996 Summer) ยท BLR1996 Summer807.4%
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.