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

Olympic Equestrian Jumping (Equestrian)

Delegation

20 team lists ยท 127 player entries ยท avg team size 6.3

Read this sport as a comparison between raw coincidence and what team size alone predicts. Here, the real rate is -5.0 points below the birthday-paradox baseline.

Real team lists
0.0%
teams with shared birthdays
Why it matters: This is the headline rate, but it should never be read without team size.
Expected from size
5.0%
from avg team size
Why it matters: This is the fair baseline: what same-size random teams would do.
Gap from expected
-5.0 points
real โˆ’ expected
Why it matters: Negative means this sport is quieter than team size alone predicts.
Team lists
20
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 Equestrian Jumping (Equestrian), 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. Men have the larger average team size here (6.7 athletes), so their birthday-match rate naturally rises.

By country

Top 40 countries by team-list count.

CountryTeam listsAvg playersReal
FRA37.00.0%
USA26.00.0%
MEX25.00.0%
SWE29.50.0%
BEL19.00.0%
AUS15.00.0%
ARG15.00.0%
FRG15.00.0%
ESP15.00.0%
CAN15.00.0%
GER16.00.0%
NZL15.00.0%
ITA110.00.0%
SUI15.00.0%
RUS15.00.0%
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
Women40.0%2.7%-2.7 points
Men160.0%5.5%-5.5 points

Sample team lists

Largest teams in the dataset.

TeamSeasonPlayersRepeatsExpected chance
ITA Equestrian Jumping (Equestrian) (1920 Summer) ยท ITA1920 Summer10011.7%
SWE Equestrian Jumping (Equestrian) (1920 Summer) ยท SWE1920 Summer10011.7%
SWE Equestrian Jumping (Equestrian) (1912 Summer) ยท SWE1912 Summer909.5%
BEL Equestrian Jumping (Equestrian) (1920 Summer) ยท BEL1920 Summer909.5%
FRA Equestrian Jumping (Equestrian) (1900 Summer) ยท FRA1900 Summer909.5%
USA Equestrian Jumping (Equestrian) (1920 Summer) ยท USA1920 Summer705.6%
FRA Equestrian Jumping (Equestrian) (1920 Summer) ยท FRA1920 Summer705.6%
GER Equestrian Jumping (Equestrian) (1912 Summer) ยท GER1912 Summer604.0%
SUI Equestrian Jumping (Equestrian) (1972 Summer) ยท SUI1972 Summer502.7%
CAN Equestrian Jumping (Equestrian) (1988 Summer) ยท CAN1988 Summer502.7%
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.