📅 Being born on leap day vs 🎳 Bowling a perfect game (300)
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You're 7.87× more likely to be born on leap day
than to bowl a perfect game
Periods differ: Being born on leap day is framed as per birth (calendar), while Bowling a perfect game (300) is per game (amateur). The multiplier is a raw ratio of the 1-in-X figures — not a normalized lifetime risk. Compare cautiously.
Being born on leap day
1 in 1,461
per birth (calendar)
Bowling a perfect game (300)
1 in 11,500
per game (amateur)
How we calculated this
Each figure is “1 in X.” The larger X is the rarer event. Dividing that number by the more common one gives the multiplier: you're 7.87× more likely to be born on leap day. When the periods differ, this is a raw ratio of those figures, not a lifetime-normalized risk.
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You're 7.87× more likely to be born on leap day (1 in 1,461, per birth (calendar)) than to bowl a perfect game (1 in 11,500, per game (amateur)). ⚠️ Periods differ (per birth (calendar) vs per game (amateur)) — compare cautiously. — How Likely Is That? https://www.howlikelyisthat.com/compare/odds-of-being-born-on-leap-day-vs-odds-of-bowling-a-perfect-game
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