2QUESTION 2 OF 3
Answer & explanation
The official answer, with Fermi’s reasoning step by step.
Answer & explanation
Official answer
1,465
double faults
How to estimate it
Fermi’s official “Napkin math”
128 men start and every match sends one home, so the draw has 127 matches. How many double faults does each player serve in a best-of-five match? A handful, call it 5, so 10 a match.
- Matches in the draw
- 127
- Double faults per match
- × 10
- 127 × 10
- ≈ 1,270
Rounded assumptions may give a slightly different estimate. The official answer above is the game’s reference value.
Source calculation & reference
- First round, 64 matches
- 746
- Second round to the final, 63 matches
- 719
- 746 + 719
- 1,465
Reference cited by Fermi: Tennis My Life match database, 2026 US Open men's singles, summed per match: 1,465
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