1931 U.S. National Championships – Men's singles
| Men's singles | |
|---|---|
| 1931 U.S. National Championships | |
| Champion |  Ellsworth Vines[1] |
| Runner-up | George Lott[1] |
| Score | 7–9, 6–3, 9–7, 7–5 |
First-seeded Ellsworth Vines defeated fourth-seeded George Lott 7–9, 6–3, 9–7, 7–5 in the final to win the men's singles tennis title at the 1931 U.S. National Championships.[2]
Seeds
The tournament used two lists of eight players for seeding the men's singles event; one for U.S. players and one for foreign players. Fred Perry is the champion; others show the round in which they were eliminated.
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Draw
Finals
| Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | Ellsworth Vines
| 6 | 6 | 8 | ||||||||||||||||||||||
| Berkeley Bell
| 1 | 4 | 6 | |||||||||||||||||||||||
| 1 | Ellsworth Vines
| 4 | 3 | 6 | 6 | 6 | ||||||||||||||||||||
| (1) |  Fred Perry
| 6 | 6 | 4 | 4 | 3 | ||||||||||||||||||||
| Frank Bowden
| 2 | 3 | 4 | |||||||||||||||||||||||
| (1) | Fred Perry
| 6 | 6 | 6 | ||||||||||||||||||||||
| 1 | Ellsworth Vines
| 7 | 6 | 9 | 7 | |||||||||||||||||||||
| 4 | George Lott
| 9 | 3 | 7 | 5 | |||||||||||||||||||||
| 2 | Frank Shields
| 2 | 9 | 6 | 6 | |||||||||||||||||||||
| 5 | John Doeg
| 6 | 11 | 4 | 8 | |||||||||||||||||||||
| 5 | John Doeg
| 5 | 3 | 0 | ||||||||||||||||||||||
| 4 | George Lott
| 7 | 6 | 6 | ||||||||||||||||||||||
| 4 |  George Lott
| 5 | 1 | 6 | 7 | 6 | ||||||||||||||||||||
| 7 | John Van Ryn
| 7 | 6 | 0 | 5 | 1 | ||||||||||||||||||||