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

Olympic Figure Skating (Skating)

Delegation

194 team lists ยท 1,764 player entries ยท avg team size 9.1

Read this sport as a comparison between raw coincidence and what team size alone predicts. Here, the real rate is +4.7 points above the birthday-paradox baseline.

Real team lists
15.5%
teams with shared birthdays
Why it matters: This is the headline rate, but it should never be read without team size.
Expected from size
10.8%
from avg team size
Why it matters: This is the fair baseline: what same-size random teams would do.
Gap from expected
+4.7 points
real โˆ’ expected
Why it matters: Positive means the sport has more birthday matches than size alone predicts.
Team lists
194
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 Figure Skating (Skating), 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, USA has the highest observed rate, with an average team size of 12.4.

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

By country

Top 40 countries by team-list count.

CountryTeam listsAvg playersReal
USA2412.433.3%
CAN2310.630.4%
GBR197.80.0%
FRA147.728.6%
GER137.87.7%
JPN107.110.0%
ITA108.120.0%
CHN88.60.0%
AUT88.50.0%
RUS715.328.6%
UKR78.60.0%
TCH66.80.0%
GDR67.50.0%
URS614.550.0%
HUN55.80.0%
FRG58.020.0%
CZE46.00.0%
SUI36.70.0%
GEO25.50.0%
ROC216.00.0%
BLR15.00.0%
BEL16.00.0%
AUS16.00.0%
BUL15.00.0%
EUN117.00.0%
EST15.00.0%
POL15.00.0%
KAZ15.00.0%
ISR17.00.0%
NOR16.00.0%
KOR17.00.0%
PRK16.0100.0%
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
Women16114.9%10.6%+4.3 points
Men3318.2%11.9%+6.3 points

Sample team lists

Largest teams in the dataset.

TeamSeasonPlayersRepeatsExpected chance
URS Figure Skating (Skating) (1988 Winter) ยท URS1988 Winter17131.5%
URS Figure Skating (Skating) (1984 Winter) ยท URS1984 Winter17131.5%
CAN Figure Skating (Skating) (1988 Winter) ยท CAN1988 Winter17131.5%
USA Figure Skating (Skating) (1992 Winter) ยท USA1992 Winter16128.4%
USA Figure Skating (Skating) (1988 Winter) ยท USA1988 Winter16128.4%
RUS Figure Skating (Skating) (2010 Winter) ยท RUS2010 Winter16228.4%
USA Figure Skating (Skating) (1980 Winter) ยท USA1980 Winter15125.3%
RUS Figure Skating (Skating) (1994 Winter) ยท RUS1994 Winter15125.3%
USA Figure Skating (Skating) (1932 Winter) ยท USA1932 Winter14122.3%
FRA Figure Skating (Skating) (1998 Winter) ยท FRA1998 Winter14122.3%
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.