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

Olympic Curling

Team

81 team lists ยท 659 player entries ยท avg team size 8.1

Read this sport as a comparison between raw coincidence and what team size alone predicts. Here, the real rate is +2.9 points above the birthday-paradox baseline.

Real team lists
11.1%
teams with shared birthdays
Why it matters: This is the headline rate, but it should never be read without team size.
Expected from size
8.2%
from avg team size
Why it matters: This is the fair baseline: what same-size random teams would do.
Gap from expected
+2.9 points
real โˆ’ expected
Why it matters: Positive means the sport has more birthday matches than size alone predicts.
Team lists
81
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 Curling, 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, SWE has the highest observed rate, with an average team size of 8.9.

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

By country

Top 40 countries by team-list count.

CountryTeam listsAvg playersReal
DEN87.825.0%
SWE88.937.5%
CAN710.028.6%
JPN76.30.0%
GBR79.414.3%
SUI79.30.0%
USA79.30.0%
NOR67.50.0%
GER58.00.0%
CHN48.30.0%
KOR37.333.3%
ITA36.30.0%
RUS36.70.0%
ROC28.50.0%
FRA25.00.0%
FIN15.00.0%
NZL15.00.0%
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
Women537.5%8.8%-1.3 points
Men2817.9%7.2%+10.7 points

Sample team lists

Largest teams in the dataset.

TeamSeasonPlayersRepeatsExpected chance
CAN Curling (2018 Winter) ยท CAN2018 Winter12116.7%
KOR Curling (2018 Winter) ยท KOR2018 Winter12116.7%
CAN Curling (2022 Winter) ยท CAN2022 Winter11114.1%
DEN Curling (2002 Winter) ยท DEN2002 Winter10111.7%
GBR Curling (2002 Winter) ยท GBR2002 Winter10111.7%
DEN Curling (2018 Winter) ยท DEN2018 Winter919.5%
SWE Curling (2018 Winter) ยท SWE2018 Winter919.5%
SWE Curling (1924 Winter) ยท SWE1924 Winter817.4%
SWE Curling (2022 Winter) ยท SWE2022 Winter817.4%
SUI Curling (2022 Winter) ยท SUI2022 Winter12016.7%
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.