# 1887 U.S. National Championships – Men's singles

Six-time defending champion Richard Sears defeated Henry Slocum in the challenge round, 6–1, 6–3, 6–2 to win the men's singles tennis title at the 1887 U.S. National Championships.

## Draw
### Challenge round

| Challenge round | Challenge round | Challenge round | Challenge round | Challenge round | Challenge round | Challenge round |
| Richard Sears | Richard Sears | 6 | 6 | 6 | | |
| Henry Slocum | Henry Slocum | 1 | 3 | 2 | | |

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Finals | Finals | Finals | Finals | Finals |
| Joseph Clark | Joseph Clark | 8 | 4 | 3 | 3 | | | | | |
| Henry Slocum | Henry Slocum | 6 | 6 | 6 | 6 | | | | | |
| Henry Slocum | Henry Slocum | 6 | 6 | 6 | 6 | Henry Slocum | Henry Slocum | 12 | 7 | 6 |
| | | | | | | Howard Taylor | Howard Taylor | 10 | 5 | 4 |
| Howard Taylor | Howard Taylor | 6 | 6 | 6 | | Howard Taylor | Howard Taylor | 10 | 5 | 4 |
| William Thacher | William Thacher | 3 | 1 | 1 | | | | | | |

### Earlier rounds
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | FS Mansfield | FS Mansfield | 6 | 8 | 6 | | | | | | | | | | | | | | |
| T Coulter | T Coulter | w/ | o | | T Coulter | T Coulter | 2 | 6 | 1 | | | | | | | | | | | | | | |
| WR Weeden | WR Weeden | | | | | | | | | | FS Mansfield | FS Mansfield | 6 | 2 | 8 | 1 | 4 | | | | | | |
| | | | | | | | | | | | J Clark | J Clark | 3 | 6 | 6 | 6 | 6 | | | | | | |
| | | | | | J Clark | J Clark | 8 | 6 | 8 | | | | | | | | | | | | | | |
| QA Shaw | QA Shaw | w/ | o | | QA Shaw | QA Shaw | 6 | 3 | 6 | | | | | | | | | | | | | | |
| A Empie Wright | A Empie Wright | | | | | | | | | | | | | | | | | J Clark | J Clark | 8 | 4 | 3 | 3 |
| GR Fearing | GR Fearing | 6 | 6 | 6 | | | | | | | | | | | | | | H Slocum | H Slocum | 6 | 6 | 6 | 6 |
| W Lewis | W Lewis | 4 | 4 | 0 | GR Fearing | GR Fearing | 8 | 3 | 6 | 6 | | | | | | | | | | | | | |
| CE Garrett | CE Garrett | 6 | 6 | 6 | CE Garrett | CE Garrett | 6 | 6 | 4 | 1 | | | | | | | | | | | | | |
| P Manchester | P Manchester | 0 | 2 | 0 | | | | | | | GR Fearing | GR Fearing | 1 | 5 | 2 | | | | | | | | |
| | | | | | | | | | | | H Slocum | H Slocum | 6 | 7 | 6 | | | | | | | | |
| | | | | | H Slocum | H Slocum | 6 | 4 | 8 | 6 | | | | | | | | | | | | | |
| RL Beeckman | RL Beeckman | 6 | 6 | 6 | RL Beeckman | RL Beeckman | 2 | 6 | 6 | 3 | | | | | | | | | | | | | |
| M Fielding | M Fielding | 4 | 4 | 0 | | | | | | | | | | | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| H Taylor | H Taylor | 6 | 6 | 7 | | | | | | | | | | | | | | | | | |
| O Campbell | O Campbell | 3 | 2 | 5 | | H Taylor | H Taylor | 6 | 6 | 6 | | | | | | | | | | | |
| | | | | | | G Depew | G Depew | 1 | 4 | 3 | | | | | | | | | | | |
| | | | | | | | | | | | H Taylor | H Taylor | 6 | 1 | 6 | 6 | | | | | |
| | | | | | | | | | | | PS Sears | PS Sears | 1 | 6 | 3 | 1 | | | | | |
| | | | | | | PS Sears | PS Sears | 6 | 6 | 6 | | | | | | | | | | | |
| | | | | | | F Warren | F Warren | 3 | 2 | 0 | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | H Taylor | H Taylor | 6 | 6 | 6 |
| | | | | | | | | | | | | | | | | | WL Thacher | WL Thacher | 3 | 1 | 1 |
| | | | | | | GM Brinley | GM Brinley | 6 | 6 | 6 | | | | | | | | | | | |
| NH Emmons | NH Emmons | 6 | 6 | 6 | | NH Emmons | NH Emmons | 4 | 1 | 2 | | | | | | | | | | | |
| WH Barnes | WH Barnes | 1 | 4 | 1 | | | | | | | GM Brinley | GM Brinley | 4 | 6 | 6 | 4 | | | | | |
| WL Thacher | WL Thacher | 12 | 5 | 6 | 6 | | | | | | WL Thacher | WL Thacher | 6 | 8 | 3 | 6 | | | | | |
| W Cushman | W Cushman | 10 | 7 | 1 | 3 | WL Thacher | WL Thacher | 6 | 9 | 6 | | | | | | | | | | | |
| | | | | | | FW Taylor | FW Taylor | 3 | 7 | 3 | | | | | | | | | | | |