# 1927 U.S. National Championships – Men's singles

Defending champion René Lacoste defeated Bill Tilden in the final, 11–9, 6–3, 11–9 to win the men's singles tennis title at the 1927 U.S. National Championships. It was Lacoste's second U.S. Championships singles title and fifth major singles title overall.

## Seeds

The tournament used two lists of eight players for seeding the men's singles event; one list of U.S. players and one for foreign players. René Lacoste is the champion; others show in brackets the round in which they were eliminated.

## Draw
### Final eight

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| Bill Tilden | 6 | 3 | 10 | 6 | | | | | | | | | | |
| Jean Borotra | 1 | 6 | 8 | 1 | | | | | | | | | | |
| Jean Borotra | 1 | 6 | 8 | 1 | | Bill Tilden | 14 | 6 | 4 | 9 | | | | |
| | | | | | | Frank Hunter | 12 | 1 | 6 | 7 | | | | |
| Frank Hunter | 4 | 5 | 6 | 6 | 6 | Frank Hunter | 12 | 1 | 6 | 7 | | | | |
| John Hennessey | 6 | 7 | 0 | 3 | 4 | | | | | | | | | |
| John Hennessey | 6 | 7 | 0 | 3 | 4 | | | | | | Bill Tilden | 9 | 3 | 9 |
| | | | | | | | | | | | René Lacoste | 11 | 6 | 11 |
| Bill Johnston | 3 | 6 | 6 | 6 | | | | | | | | | | | René Lacoste | 11 | 6 | 11 |
| Jacques Brugnon | 6 | 2 | 4 | 4 | | | | | | | | | | |
| Jacques Brugnon | 6 | 2 | 4 | 4 | | Bill Johnston | 2 | 6 | 4 | 1 | | | | |
| | | | | | | René Lacoste | 6 | 2 | 6 | 6 | | | | |
| Manuel Alonso | 2 | 6 | 4 | 1 | | René Lacoste | 6 | 2 | 6 | 6 | | | | |
| René Lacoste | 6 | 2 | 6 | 6 | | | | | | | | | | |

### Earlier rounds
#### Section 1

| First round | First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 1 | Tilden | 6 | 10 | 7 | | | | | | | | | | | | | | | | | | | | | |
| | Mercur | 3 | 8 | 5 | | | 1 | Tilden | 6 | 6 | 6 | | | | | | | | | | | | | | |
| Hyde | Hyde | w/ | o | | | | | Bell | 2 | 2 | 2 | | | | | | | | | | | | | | |
| Bell | Bell | | | | | | | | | | | | 1 | Tilden | 4 | 6 | 11 | 6 | | | | | | | |
| Griffin | Griffin | 3 | 8 | 6 | 6 | | | | | | | | | Griffin | 6 | 1 | 9 | 0 | | | | | | | |
| Hubbell | Hubbell | 6 | 6 | 4 | 4 | | | Griffin | 6 | 6 | 6 | | | | | | | | | | | | | | |
| | Griffin | 6 | 5 | 2 | 6 | 3 | (7) | Ohta | 0 | 2 | 2 | | | | | | | | | | | | | | |
| (7) | Ohta | 2 | 7 | 6 | 3 | 6 | | | | | | | | | | | | | | 1 | Tilden | 6 | 3 | 10 | 6 |
| 8 | Doeg | 8 | 3 | 6 | 2 | | | | | | | | | | | | | | | (3) | Borotra | 1 | 6 | 8 | 1 |
| | Appel | 10 | 6 | 3 | 6 | | Appel | Appel | 6 | 5 | 0 | | | | | | | | | | | | | | |
| Lang | Lang | 6 | 4 | 4 | 6 | 6 | Lang | Lang | 8 | 7 | 6 | | | | | | | | | | | | | | |
| Anderson | Anderson | 1 | 6 | 6 | 0 | 3 | | | | | | | | Lang | 6 | 6 | 3 | 1 | 3 | | | | | | |
| Gilpin | Gilpin | 5 | 3 | 6 | | | | | | | | | (3) | Borotra | 2 | 4 | 6 | 6 | 6 | | | | | | |
| Thalheimer | Thalheimer | 7 | 6 | 3 | rtd. | | | Gilpin | 4 | 6 | 8 | 5 | | | | | | | | | | | | | |
| | Toba | 6 | 6 | 2 | 3 | 0 | (3) | Borotra | 6 | 8 | 6 | 7 | | | | | | | | | | | | | |
| (3) | Borotra | 3 | 2 | 6 | 6 | 6 | | | | | | | | | | | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 4 | Hunter | 6 | 8 | 3 | 6 | | | | | | | | | | | | | | | | | | | | |
| | Seligson | 1 | 6 | 6 | 2 | 4 | Hunter | 6 | 9 | 6 | | | | | | | | | | | | | | | |
| Chandler | Chandler | | | | | | Chandler | 2 | 7 | 4 | | | | | | | | | | | | | | | |
| Allison | Allison | w/ | o | | | | | | | | | 4 | Hunter | 7 | 6 | 6 | | | | | | | | | |
| Evans | Evans | 0 | 1 | 1 | | | | | | | | (5) | Washer | 5 | 3 | 3 | | | | | | | | | |
| Coggeshall | Coggeshall | 6 | 6 | 6 | | | Coggeshall | 4 | 0 | 2 | | | | | | | | | | | | | | | |
| | Coen | w/ | o | | | (5) | Washer | 6 | 6 | 6 | | | | | | | | | | | | | | | |
| (5) | Washer | | | | | | | | | | | | | | | | | | 4 | Hunter | 4 | 5 | 6 | 6 | 6 |
| 6 | Williams | w/ | o | | | | | | | | | | | | | | | | | Hennessey | 6 | 7 | 0 | 3 | 4 |
| | Herndon | | | | | Herndon | Herndon | 4 | 1 | 2 | | | | | | | | | | | | | | | |
| Baur | Baur | 3 | 4 | 2 | | Hennessey | Hennessey | 6 | 6 | 6 | | | | | | | | | | | | | | | |
| Hennessey | Hennessey | 6 | 6 | 6 | | | | | | | | | Hennessey | 6 | 6 | 4 | 3 | 6 | | | | | | | |
| Feibleman | Feibleman | 6 | 6 | 6 | | | | | | | | (2) | Cochet | 4 | 4 | 6 | 6 | 1 | | | | | | | |
| Onda | Onda | 4 | 3 | 4 | | | Feibleman | 4 | 6 | 7 | 0 | | | | | | | | | | | | | | |
| | Kynaston | 3 | 5 | 3 | | (2) | Cochet | 6 | 8 | 5 | 6 | | | | | | | | | | | | | | |
| (2) | Cochet | 6 | 7 | 6 | | | | | | | | | | | | | | | | | | | | | |

#### Section 3

| First round | First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 2 | Johnston | 7 | 6 | 7 | | | | | | | | | | | | | | | | | | | | | |
| | King | 5 | 3 | 5 | | | 2 | Johnston | 6 | 6 | 7 | | | | | | | | | | | | | | |
| Olhausen | Olhausen | 6 | 7 | 4 | | | | Marsh | 1 | 4 | 5 | | | | | | | | | | | | | | |
| Marsh | Marsh | 8 | 9 | 6 | | | | | | | | | 2 | Johnston | 6 | 6 | 6 | | | | | | | | |
| Williams | Williams | w/ | o | | | | | | | | | | (6) | Wright | 4 | 4 | 4 | | | | | | | | |
| Leslie | Leslie | | | | | | | Leslie | 5 | 1 | 9 | 1 | | | | | | | | | | | | | |
| | Mooney | 0 | 4 | 2 | | | (6) | Wright | 7 | 6 | 7 | 6 | | | | | | | | | | | | | |
| (6) | Wright | 6 | 6 | 6 | | | | | | | | | | | | | | | | 2 | Johnston | 3 | 6 | 6 | 6 |
| 7 | White | 7 | 3 | 1 | 0 | | | | | | | | | | | | | | | (4) | Brugnon | 6 | 2 | 4 | 4 |
| | Jones | 5 | 6 | 6 | 6 | | Jones | Jones | 6 | 6 | 6 | | | | | | | | | | | | | | |
| Fischer | Fischer | 6 | 3 | 6 | 6 | 6 | Fischer | Fischer | 1 | 1 | 2 | | | | | | | | | | | | | | |
| Shields | Shields | 3 | 6 | 2 | 8 | 3 | | | | | | | | Jones | 7 | 6 | 6 | 1 | 1 | | | | | | |
| Strachan | Strachan | 4 | 6 | 6 | 6 | | | | | | | | (4) | Brugnon | 9 | 4 | 3 | 6 | 6 | | | | | | |
| Wood | Wood | 6 | 3 | 4 | 2 | | | Strachan | 0 | 1 | 2 | | | | | | | | | | | | | | |
| | Mangin | 4 | 5 | 3 | | | (4) | Brugnon | 6 | 6 | 6 | | | | | | | | | | | | | | |
| (4) | Brugnon | 6 | 7 | 6 | | | | | | | | | | | | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 3 | Alonso | 5 | 8 | 6 | 6 | | | | | | | | | | | | | | | | | | | | |
| | Hall | 7 | 6 | 4 | 3 | | 3 | Alonso | 6 | 4 | 6 | 6 | | | | | | | | | | | | | |
| Washburn | Washburn | 5 | 6 | 5 | 6 | 6 | | Washburn | 2 | 6 | 3 | 2 | | | | | | | | | | | | | |
| Weiner | Weiner | 7 | 1 | 7 | 0 | 0 | | | | | | | 3 | Alonso | 5 | 3 | 6 | 6 | 6 | | | | | | |
| Van Ryn | Van Ryn | 6 | 6 | 3 | 6 | | | | | | | | | Van Ryn | 7 | 6 | 1 | 4 | 0 | | | | | | |
| Johnson | Johnson | 4 | 4 | 6 | 4 | | Van Ryn | Van Ryn | 4 | 6 | 7 | 8 | | | | | | | | | | | | | |
| | Bowman | 6 | 6 | 6 | | | Bowman | Bowman | 6 | 2 | 5 | 6 | | | | | | | | | | | | | |
| (8) | Miki | 4 | 1 | 2 | | | | | | | | | | | | | | | | 3 | Alonso | 8 | 4 | 1 | 2 |
| 5 | Lott | w/ | o | | | | | | | | | | | | | | | | | (1) | Lacoste | 6 | 6 | 6 | 6 |
| | Behr | | | | | | Behr | Behr | 3 | 3 | 2 | | | | | | | | | | | | | | |
| Harada | Harada | 6 | 6 | 6 | | | Harada | Harada | 6 | 6 | 6 | | | | | | | | | | | | | | |
| Orser | Orser | 1 | 3 | 1 | | | | | | | | | | Harada | 3 | 4 | 3 | | | | | | | | |
| Nunns | Nunns | 4 | 6 | 3 | 6 | 6 | | | | | | | (1) | Lacoste | 6 | 6 | 6 | | | | | | | | |
| Sullivan | Sullivan | 6 | 4 | 6 | 0 | 3 | | Nunns | 0 | 2 | 4 | | | | | | | | | | | | | | |
| | Owens | 4 | 4 | 2 | | | (1) | Lacoste | 6 | 6 | 6 | | | | | | | | | | | | | | |
| (1) | Lacoste | 6 | 6 | 6 | | | | | | | | | | | | | | | | | | | | | |