# 1918 U.S. National Championships – Men's singles

Defending champion Robert Lindley Murray defeated Bill Tilden in the final, 6–3, 6–1, 7–5 to win the men's singles tennis title at the 1918 U.S. National Championships.
The event was held at the West Side Tennis Club in Forest Hills, Queens, from August 26 through September 3, 1918.

## Final eight

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| Craig Biddle | 2 | 3 | 5 | | | | | | | | | | |
| S. Howard Voshell | 6 | 6 | 7 | | | | | | | | | | |
| S. Howard Voshell | 6 | 6 | 7 | | | S. Howard Voshell | 4 | 3 | 6 | | | | |
| | | | | | | R. Lindley Murray | 6 | 6 | 8 | | | | |
| Nathaniel Niles | 5 | 4 | 6 | 5 | | R. Lindley Murray | 6 | 6 | 8 | | | | |
| R. Lindley Murray | 7 | 6 | 2 | 7 | | | | | | | | | |
| R. Lindley Murray | 7 | 6 | 2 | 7 | | | | | | R. Lindley Murray | 6 | 6 | 7 |
| | | | | | | | | | | Bill Tilden | 3 | 1 | 5 |
| Lyle Mahan | 6 | 6 | 1 | 2 | | | | | | | | | | Bill Tilden | 3 | 1 | 5 |
| Ichiya Kumagae | 8 | 3 | 6 | 6 | | | | | | | | | |
| Ichiya Kumagae | 8 | 3 | 6 | 6 | | Ichiya Kumagae | 2 | 2 | 0 | | | | |
| | | | | | | Bill Tilden | 6 | 6 | 6 | | | | |
| Bill Tilden | 3 | 6 | 5 | 7 | 6 | Bill Tilden | 6 | 6 | 6 | | | | |
| Walter Merrill Hall | 6 | 1 | 7 | 5 | 1 | | | | | | | | |

### Earlier rounds
#### Section 1

| Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| Biddle | Biddle | 6 | 6 | 6 | | | | | | | | | | |
| Ewing | Ewing | 2 | 4 | 4 | | | | | | | | | | |
| | | | | | Biddle | Biddle | 6 | 6 | 6 | | | | | |
| | | | | | Cassils | Cassils | 0 | 2 | 1 | | | | | |
| O'Boyle | O'Boyle | 1 | 3 | 4 | | | | | | | | | | |
| Cassils | Cassils | 6 | 6 | 6 | | | | | | | | | | |
| | | | | | | | | | | Biddle | Biddle | 6 | 6 | 6 |
| | | | | | | | | | | Morgenthaler | Morgenthaler | 0 | 3 | 3 |
| Stockton | Stockton | 1 | 4 | 2 | | | | | | | | | | |
| Morgenthaler | Morgenthaler | 6 | 6 | 6 | | | | | | | | | | |
| | | | | | Morgenthaler | Morgenthaler | 6 | 6 | 6 | | | | | |
| | | | | | Simmons | Simmons | 2 | 1 | 2 | | | | | |
| Rosenbaum | Rosenbaum | w/ | o | | | | | | | | | | | |
| Simmons | Simmons | | | | | | | | | | | | | |

#### Section 2

| Second round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| Voshell | Voshell | 6 | 6 | 6 | | | | | | | | | | | | | |
| Richey | Richey | 0 | 1 | 3 | | | | | | | | | | | | | |
| | | | | | | Voshell | Voshell | 6 | 6 | 6 | | | | | | | |
| | | | | | | Bretz | Bretz | 3 | 0 | 1 | | | | | | | |
| Bretz | Bretz | | | | | | | | | | | | | | | | |
| Fulton | Fulton | w/ | o | | | | | | | | | | | | | | |
| | | | | | | | | | | | Voshell | Voshell | 5 | 4 | 6 | 6 | 7 |
| | | | | | | | | | | | Richards | Richards | 7 | 6 | 0 | 2 | 5 |
| Richards | Richards | | | | | | | | | | | | | | | | |
| Nathan | Nathan | w/ | o | | | | | | | | | | | | | | |
| | | | | | | Richards | Richards | 6 | 6 | 6 | | | | | | | |
| | | | | | | Anderson | Anderson | 1 | 3 | 3 | | | | | | | |
| Keresey | Keresey | 3 | 4 | 6 | 1 | | | | | | | | | | | | |
| Anderson | Anderson | 6 | 6 | 2 | 6 | | | | | | | | | | | | |

#### Section 3

| First round | First round | First round | First round | First round | First round | Second 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 | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| | | | | | | Gatcomb | Gatcomb | 2 | 6 | 6 | 13 | 6 | | | | | | | | | | | |
| | | | | | | Emerson | Emerson | 6 | 2 | 0 | 15 | 2 | | | | | | | | | | | |
| | | | | | | | | | | | | | Gatcomb | Gatcomb | 2 | 6 | 1 | 4 | | | | | |
| | | | | | | | | | | | | | Binzen | Binzen | 6 | 2 | 6 | 6 | | | | | |
| | | | | | | Binzen | Binzen | 6 | 6 | 6 | | | | | | | | | | | | | |
| | | | | | | Fox | Fox | 1 | 3 | 2 | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | Binzen | Binzen | 5 | 0 | 2 |
| Niles | Niles | 6 | 6 | 6 | | | | | | | | | | | | | | | Niles | Niles | 7 | 6 | 6 |
| Hane | Hane | 2 | 0 | 1 | | Niles | Niles | 6 | 6 | 6 | | | | | | | | | | | | | |
| Johnson | Johnson | 0 | 6 | 0 | 3 | Gallon | Gallon | 1 | 4 | 2 | | | | | | | | | | | | | |
| Gallon | Gallon | 6 | 3 | 6 | 6 | | | | | | | | Niles | Niles | 7 | 6 | 2 | 7 | | | | | |
| Chapin | Chapin | 6 | 6 | 6 | | | | | | | | | Burdick | Burdick | 5 | 4 | 6 | 5 | | | | | |
| Burghard | Burghard | 3 | 4 | 2 | | Chapin | Chapin | 3 | 1 | 1 | | | | | | | | | | | | | |
| Bowman | Bowman | 2 | 4 | 4 | | Burdick | Burdick | 6 | 6 | 6 | | | | | | | | | | | | | |
| Burdick | Burdick | 6 | 6 | 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 | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| Wagner | Wagner | 0 | 2 | 2 | | | | | | | | | | | | | | | | | | | | | | |
| Alexander | Alexander | 6 | 6 | 6 | | | Alexander | Alexander | 6 | 6 | 6 | | | | | | | | | | | | | | | |
| Czintz | Czintz | 2 | 1 | 3 | | | Chapin | Chapin | 2 | 2 | 1 | | | | | | | | | | | | | | | |
| Chapin | Chapin | 6 | 6 | 6 | | | | | | | | | Alexander | Alexander | 2 | 3 | 7 | 6 | 6 | | | | | | | |
| Larned | Larned | 1 | 1 | 4 | | | | | | | | | Throckmorton | Throckmorton | 6 | 6 | 5 | 0 | 3 | | | | | | | |
| Baggs | Baggs | 6 | 6 | 6 | | | Baggs | Baggs | 4 | 2 | 6 | 5 | | | | | | | | | | | | | | |
| Throckmorton | Throckmorton | 6 | 6 | 11 | 7 | 13 | Throckmorton | Throckmorton | 6 | 6 | 3 | 7 | | | | | | | | | | | | | | |
| Taylor | Taylor | 8 | 2 | 9 | 9 | 11 | | | | | | | | | | | | | | Alexander | Alexander | 8 | 6 | 0 | 6 | 0 |
| Pell | Pell | 6 | 6 | 6 | | | | | | | | | | | | | | | | Murray | Murray | 6 | 8 | 6 | 4 | 6 |
| Hughes | Hughes | 2 | 2 | 3 | | | Pell | Pell | 2 | 6 | 6 | 6 | | | | | | | | | | | | | | |
| Dana | Dana | 6 | 6 | 6 | | | Dana | Dana | 6 | 3 | 2 | 3 | | | | | | | | | | | | | | |
| Iler | Iler | 2 | 3 | 0 | | | | | | | | | Pell | Pell | 2 | 0 | 0 | | | | | | | | | |
| Dudley | Dudley | 0 | 0 | 1 | | | | | | | | | Murray | Murray | 6 | 6 | 6 | | | | | | | | | |
| Murray | Murray | 6 | 6 | 6 | | | Murray | Murray | | | | | | | | | | | | | | | | | | |
| Anderson | Anderson | 6 | 4 | 4 | 5 | | Kelleher | Kelleher | w/ | o | | | | | | | | | | | | | | | | |
| Kelleher | Kelleher | 0 | 6 | 6 | 7 | | | | | | | | | | | | | | | | | | | | | |

#### Section 5

| 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 | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| Wabrausek | Wabrausek | 6 | 6 | 6 | | | | | | | | | | | | | | | | | | | |
| Groesbeck | Groesbeck | 4 | 2 | 2 | | | Wabrausek | Wabrausek | 0 | 2 | 1 | | | | | | | | | | | | |
| Parker | Parker | 6 | 6 | 6 | | | Parker | Parker | 6 | 6 | 6 | | | | | | | | | | | | |
| Burroughs | Burroughs | 4 | 0 | 0 | | | | | | | | | Parker | Parker | 6 | 6 | 6 | | | | | | |
| Vail | Vail | 6 | 5 | 6 | 13 | 6 | | | | | | | Pike | Pike | 3 | 3 | 0 | | | | | | |
| Pope | Pope | 2 | 7 | 1 | 15 | 2 | Vail | Vail | 9 | 0 | 4 | | | | | | | | | | | | |
| Pike | Pike | 6 | 6 | 6 | | | Pike | Pike | 11 | 6 | 6 | | | | | | | | | | | | |
| Miller | Miller | 1 | 0 | 3 | | | | | | | | | | | | | | | Parker | Parker | 2 | 2 | 3 |
| Gravem | Gravem | 1 | 3 | 3 | | | | | | | | | | | | | | | Mahan | Mahan | 6 | 6 | 6 |
| Mahan | Mahan | 6 | 6 | 6 | | | Mahan | Mahan | 6 | 7 | 7 | | | | | | | | | | | | |
| O'Boyle | O'Boyle | 6 | 3 | 3 | 6 | 6 | O'Boyle | O'Boyle | 0 | 5 | 5 | | | | | | | | | | | | |
| Thomas | Thomas | 1 | 6 | 6 | 1 | 4 | | | | | | | Mahan | Mahan | 8 | 8 | 6 | 8 | | | | | |
| Anderson | Anderson | 3 | 5 | 1 | | | | | | | | | Kashio | Kashio | 6 | 6 | 8 | 6 | | | | | |
| Kashio | Kashio | 6 | 7 | 6 | | | Kashio | Kashio | 6 | 7 | 6 | 7 | | | | | | | | | | | |
| Dionne | Dionne | 6 | 6 | 6 | | | Dionne | Dionne | 1 | 9 | 3 | 5 | | | | | | | | | | | |
| Fall | Fall | 0 | 2 | 0 | | | | | | | | | | | | | | | | | | | |

#### Section 6

| 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 | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| Drake | Drake | 6 | 6 | 6 | | | | | | | | | | | | | | | | | |
| Kynaston | Kynaston | 2 | 3 | 4 | Drake | Drake | 0 | 0 | 2 | | | | | | | | | | | | |
| Wright | Wright | | | | Wright | Wright | 6 | 6 | 6 | | | | | | | | | | | | |
| James | James | w/ | o | | | | | | | | Wright | Wright | 6 | 6 | 6 | | | | | | |
| Healy | Healy | 0 | 1 | 0 | | | | | | | Dunham | Dunham | 4 | 2 | 3 | | | | | | |
| Gilbert | Gilbert | 6 | 6 | 6 | Gilbert | Gilbert | 5 | 2 | 3 | | | | | | | | | | | | |
| | | | | | Dunham | Dunham | 7 | 6 | 6 | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | Wright | Wright | 6 | 6 | 1 | 2 |
| | | | | | | | | | | | | | | | | Kumagae | Kumagae | 8 | 3 | 6 | 6 |
| | | | | | Kumagae | Kumagae | 6 | 6 | 6 | | | | | | | | | | | | |
| | | | | | Pate | Pate | 0 | 4 | 0 | | | | | | | | | | | | |
| | | | | | | | | | | | Kumagae | Kumagae | 6 | 6 | 6 | | | | | | |
| | | | | | | | | | | | Wightman | Wightman | 3 | 2 | 2 | | | | | | |
| | | | | | Wightman | Wightman | 6 | 3 | 6 | 6 | | | | | | | | | | | |
| | | | | | Whelan | Whelan | 2 | 6 | 3 | 4 | | | | | | | | | | | |

#### Section 7

| Second round | Second round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| Bassford | Bassford | 6 | 9 | 5 | 6 | 3 | | | | | | | | | | |
| King | King | 4 | 11 | 7 | 0 | 6 | | | | | | | | | | |
| | | | | | | | King | King | 3 | 3 | 3 | | | | | |
| | | | | | | | Doyle | Doyle | 6 | 6 | 6 | | | | | |
| Horrell | Horrell | 1 | 2 | 2 | | | | | | | | | | | | |
| Doyle | Doyle | 6 | 6 | 6 | | | | | | | | | | | | |
| | | | | | | | | | | | | Doyle | Doyle | 3 | 1 | 5 |
| | | | | | | | | | | | | Tilden | Tilden | 6 | 6 | 7 |
| Nielsen | Nielsen | 2 | 3 | 7 | | | | | | | | | | | | |
| Burrows | Burrows | 6 | 6 | 9 | | | | | | | | | | | | |
| | | | | | | | Burrows | Burrows | 1 | 3 | 3 | | | | | |
| | | | | | | | Tilden | Tilden | 6 | 6 | 6 | | | | | |
| Gibbons | Gibbons | w/ | o | | | | | | | | | | | | | |
| Tilden | Tilden | | | | | | | | | | | | | | | |

#### Section 8

| Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Third round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| Cumming | Cumming | 2 | 2 | 2 | | | | | | | | | | | | | |
| Hayes | Hayes | 6 | 6 | 6 | | | | | | | | | | | | | |
| | | | | | Hayes | Hayes | 6 | 6 | 6 | | | | | | | | |
| | | | | | Hendrickson | Hendrickson | 1 | 2 | 2 | | | | | | | | |
| Hendrickson | Hendrickson | 6 | 6 | 7 | | | | | | | | | | | | | |
| Behr | Behr | 2 | 3 | 5 | | | | | | | | | | | | | |
| | | | | | | | | | | | Hayes | Hayes | 6 | 4 | 6 | 4 | 4 |
| | | | | | | | | | | | Merrill Hall | Merrill Hall | 3 | 6 | 0 | 6 | 6 |
| Wright | Wright | 6 | 6 | 6 | | | | | | | | | | | | | |
| Kaltenbach | Kaltenbach | 1 | 0 | 2 | | | | | | | | | | | | | |
| | | | | | Wright | Wright | 6 | 5 | 1 | 2 | | | | | | | |
| | | | | | Merrill Hall | Merrill Hall | 4 | 7 | 6 | 6 | | | | | | | |
| Donaldson | Donaldson | 0 | 1 | 3 | | | | | | | | | | | | | |
| Merrill Hall | Merrill Hall | 6 | 6 | 6 | | | | | | | | | | | | | |