# 1946 U.S. National Championships – Men's singles

Jack Kramer defeated Tom Brown 9–7, 6–3, 6–0 in the final to win the men's singles tennis title at the 1946 U.S. National Championships.

## Seeds

The seeded players are listed below. Jack Kramer is the champion; others show the round in which they were eliminated.

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* r = Retired

### Final eight

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| 7 | Pancho Segura | 6 | 4 | 10 | 3 | | | | | | | | | | | |
| 3 | Gardnar Mulloy | 4 | 6 | 12 | 6 | | | | | | | | | | | |
| 3 | Gardnar Mulloy | 4 | 6 | 12 | 6 | | 3 | Gardnar Mulloy | 4 | 2 | 4 | | | | | |
| | | | | | | | 6 | Tom Brown | 6 | 6 | 6 | | | | | |
| 6 | Tom Brown | 6 | 6 | 6 | 3 | 6 | 6 | Tom Brown | 6 | 6 | 6 | | | | | |
| 1 | Frank Parker | 3 | 4 | 8 | 6 | 1 | | | | | | | | | | |
| 1 | Frank Parker | 3 | 4 | 8 | 6 | 1 | | | | | | 6 | Tom Brown | 7 | 3 | 0 |
| | | | | | | | | | | | | 2 | Jack Kramer | 9 | 6 | 6 |
| 8 | Robert Falkenburg | 3 | 6 | 2 | 6 | 7 | | | | | | | | | | | 2 | Jack Kramer | 9 | 6 | 6 |
| 4 | Bill Talbert | 6 | 1 | 6 | 2 | 5 | | | | | | | | | | |
| 4 | Bill Talbert | 6 | 1 | 6 | 2 | 5 | 8 | Robert Falkenburg | 0 | 4 | 4 | | | | | |
| | | | | | | | 2 | Jack Kramer | 6 | 6 | 6 | | | | | |
| 5 | Donald McNeill | 3 | 2 | 6 | 2 | | 2 | Jack Kramer | 6 | 6 | 6 | | | | | |
| 2 | Jack Kramer | 6 | 6 | 1 | 6 | | | | | | | | | | | |

### Earlier rounds
#### Section 1

| 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 | Third round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| (2) | Russell | 6 | 1 | 7 | 6 | | | | | | | | | | | | | | |
| | Antignat | 3 | 6 | 5 | 4 | | | | | | | | | | | | | | |
| | | | | | | | (2) | Russell | 4 | 6 | 6 | 3 | 6 | | | | | | |
| | | | | | | | | Deyro | 6 | 0 | 1 | 6 | 3 | | | | | | |
| | Deyro | 6 | 6 | 6 | | | | | | | | | | | | | | | |
| | Watson | 2 | 3 | 4 | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | (2) | Russell | 2 | 2 | 7 | 4 |
| | | | | | | | | | | | | | | 7 | Segura | 6 | 6 | 5 | 6 |
| | Marois | 7 | 6 | 4 | 2 | 5 | | | | | | | | | | | | | |
| | Slack | 5 | 2 | 6 | 6 | 7 | | | | | | | | | | | | | |
| | | | | | | | | Slack | 2 | 0 | 2 | | | | | | | | |
| | | | | | | | 7 | Segura | 6 | 6 | 6 | | | | | | | | |
| | Brown | 2 | 2 | 2 | | | | | | | | | | | | | | | |
| 7 | Segura | 6 | 6 | 6 | | | | | | | | | | | | | | | |

#### Section 2

| 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 |
| | | | | | (9) | Barnes | 6 | 6 | 6 | | | | | | | | | | | |
| | | | | | | Macken | 2 | 3 | 1 | | | | | | | | | | | |
| | | | | | | | | | | | (9) | Barnes | 4 | 3 | 5 | | | | | |
| | | | | | | | | | | | | Brooks | 6 | 6 | 7 | | | | | |
| | | | | | | Brooks | 9 | 7 | 6 | | | | | | | | | | | |
| | | | | | | Kellogg | 7 | 5 | 4 | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | Brooks | 5 | 2 | 5 |
| | | | | | | | | | | | | | | | | 3 | Mulloy | 7 | 6 | 7 |
| | | | | | | Avory | 6 | 2 | 3 | 6 | | | | | | | | | | |
| | | | | | | Seixas | 4 | 6 | 6 | 8 | | | | | | | | | | |
| | | | | | | | | | | | | Seixas | 3 | 3 | 2 | | | | | |
| | | | | | | | | | | | 3 | Mulloy | 6 | 6 | 6 | | | | | |
| | | | | | | Bowden | 2 | 3 | 5 | | | | | | | | | | | |
| | Anderson | 0 | 0 | 1 | 3 | Mulloy | 6 | 6 | 7 | | | | | | | | | | | |
| 3 | Mulloy | 6 | 6 | 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 | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| | Brown | 1 | 3 | 1 | | | | | | | | | | | | | | | | | | | |
| (4) | Ampon | 6 | 6 | 6 | | | (4) | Ampon | 8 | 6 | 6 | | | | | | | | | | | | |
| | Wood | 3 | 4 | 3 | | | | Pero | 6 | 3 | 1 | | | | | | | | | | | | |
| | Pero | 6 | 6 | 6 | | | | | | | | | (4) | Ampon | 4 | 6 | 1 | 6 | | | | | |
| | Plougmann | w/o | | | | | | | | | | | | Flam | 6 | 3 | 6 | 8 | | | | | |
| | Gardner | | | | | | | Gardner | 4 | 2 | 5 | | | | | | | | | | | | |
| | Hainline | 4 | 2 | 6 | 6 | 4 | | Flam | 6 | 6 | 7 | | | | | | | | | | | | |
| | Flam | 6 | 6 | 4 | 1 | 6 | | | | | | | | | | | | | | Flam | 3 | 4 | 2 |
| | Rochon | 4 | 5 | 2 | | | | | | | | | | | | | | | 6 | Brown | 6 | 6 | 6 |
| | Grant | 6 | 7 | 6 | | | | Grant | 6 | 7 | 6 | | | | | | | | | | | | |
| | Ager | 2 | 6 | 6 | 5 | 2 | | Schwartz | 4 | 5 | 3 | | | | | | | | | | | | |
| | Schwartz | 6 | 3 | 4 | 7 | 6 | | | | | | | | Grant | 1 | 2 | 2 | | | | | | |
| | Neff | 4 | 5 | 8 | | | | | | | | | 6 | Brown | 6 | 6 | 6 | | | | | | |
| | Falkenburg | 6 | 7 | 10 | | | | Falkenburg | 4 | 6 | 1 | 1 | | | | | | | | | | | |
| | Kovaleski | 5 | 2 | 10 | | | 6 | Brown | 6 | 4 | 6 | 6 | | | | | | | | | | | |
| 6 | Brown | 7 | 6 | 12 | | | | | | | | | | | | | | | | | | | |

#### 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 |
| (7) | Destremau | 4 | 4 | 10 | | | | | | | | | | | | | | | | | | | | |
| | Larned | 6 | 6 | 12 | | | | Larned | 2 | 6 | 6 | 6 | | | | | | | | | | | | |
| | Mathey | 3 | 4 | 3 | | | | Lewis | 6 | 4 | 3 | 3 | | | | | | | | | | | | |
| | Lewis | 6 | 6 | 6 | | | | | | | | | | Larned | 6 | 1 | 2 | 6 | 3 | | | | | |
| | Van Den Eynde | 4 | 4 | 5 | | | | | | | | | 9 | Greenberg | 3 | 6 | 6 | 4 | 6 | | | | | |
| | Tuero | 6 | 6 | 7 | | | | Tuero | 0 | 4 | 4 | | | | | | | | | | | | | |
| | Molloy | 2 | 4 | 6 | 6 | 2 | 9 | Greenberg | 6 | 6 | 6 | | | | | | | | | | | | | |
| 9 | Greenberg | 6 | 6 | 4 | 3 | 6 | | | | | | | | | | | | | | 9 | Greenberg | 3 | 3 | 2 |
| (5) | Morea | 6 | 6 | 2 | 4 | | | | | | | | | | | | | | | 1 | Parker | 6 | 6 | 6 |
| | Likas | 4 | 8 | 6 | 6 | | | Likas | 4 | 6 | 11 | 6 | | | | | | | | | | | | |
| | Kerdasha | 0 | 1 | 2 | | | | Thomas | 6 | 2 | 9 | 4 | | | | | | | | | | | | |
| | Thomas | 6 | 6 | 6 | | | | | | | | | | Likas | 0 | 2 | 3 | | | | | | | |
| | Steiner | 5 | 4 | 4 | | | | | | | | | 1 | Parker | 6 | 6 | 6 | | | | | | | |
| | Brink | 7 | 6 | 6 | | | | Brink | 2 | 1 | 3 | | | | | | | | | | | | | |
| | Macken | 1 | 1 | 3 | | | 1 | Parker | 6 | 6 | 6 | | | | | | | | | | | | | |
| 1 | Parker | 6 | 6 | 6 | | | | | | | | | | | | | | | | | | | | |

#### Section 5

| First round | First round | First round | First round | First round | First 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 |
| | Burrows | 4 | 1 | 4 | | | | | | | | | | | | | | | | | | |
| (1) | Petra | 6 | 6 | 6 | | (1) | Petra | 4 | 7 | 4 | | | | | | | | | | | | |
| | Dorfman | 3 | 4 | 1 | | | Patty | 6 | 9 | 6 | | | | | | | | | | | | |
| | Patty | 6 | 6 | 6 | | | | | | | | Patty | 3 | 6 | 6 | 6 | | | | | | |
| | Mottram | 3 | 3 | 9 | 7 | | | | | | | Canning | 6 | 3 | 3 | 2 | | | | | | |
| | Canning | 6 | 6 | 7 | 9 | | Canning | 6 | 6 | 6 | | | | | | | | | | | | |
| | Hanna | 2 | 6 | 1 | 9 | | Masterson | 0 | 3 | 3 | | | | | | | | | | | | |
| | Masterson | 6 | 2 | 6 | 11 | | | | | | | | | | | | | | Patty | 4 | 4 | 2 |
| | Yeomans | 4 | 5 | 6 | 2 | | | | | | | | | | | | | 8 | Falkenburg | 6 | 6 | 6 |
| | Hart | 6 | 7 | 4 | 6 | | Hart | 1 | 2 | 3 | | | | | | | | | | | | |
| | Holbrook | 6 | 5 | 3 | 4 | | Match | 6 | 6 | 6 | | | | | | | | | | | | |
| | Match | 3 | 7 | 6 | 6 | | | | | | | Match | 7 | 6 | 5 | 1 | 2 | | | | | |
| | Mathey | 0 | 1 | 1 | | | | | | | 8 | Falkenburg | 5 | 2 | 7 | 6 | 6 | | | | | |
| | Bartzen | 6 | 6 | 6 | | | Bartzen | 5 | 4 | 2 | | | | | | | | | | | | |
| | Buse | 1 | 3 | 8 | 1 | 8 | Falkenburg | 7 | 6 | 6 | | | | | | | | | | | | |
| 8 | Falkenburg | 6 | 6 | 6 | 6 | | | | | | | | | | | | | | | | | |

#### Section 6

| 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 | Second round | Third round | Third round | Third round | Third round | Third round | Third round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| | Carver | 5 | 3 | 4 | | | | | | | | | | | | | | | | | | | | |
| (6) | Hopman | 7 | 6 | 6 | | | (6) | Hopman | 1 | 7 | 6 | | | | | | | | | | | | | |
| | Carter | 3 | 6 | 6 | 8 | 11 | | Cooke | 6 | 9 | 8 | | | | | | | | | | | | | |
| | Cooke | 6 | 8 | 2 | 6 | 13 | | | | | | | | | Cooke | 9 | 1 | 6 | 1 | | | | | |
| | Cushingham | w/o | | | | | | | | | | | | | Cochell | 11 | 6 | 1 | 6 | | | | | |
| | Schnaars | | | | | | | Schnaars | 1 | 2 | 1 | | | | | | | | | | | | | |
| | Bellis | 5 | 1 | 0 | | | | Cochell | 6 | 6 | 6 | | | | | | | | | | | | | |
| | Cochell | 7 | 6 | 6 | | | | | | | | | | | | | | | | | Cochell | 4 | 4 | 6 |
| | Behrens | 2 | 3 | 2 | | | | | | | | | | | | | | | | 4 | Talbert | 6 | 6 | 8 |
| | Savitt | 6 | 6 | 6 | | | | Savitt | 6 | 6 | 2 | 4 | 6 | | | | | | | | | | | |
| | Rodgers | 2 | 5 | 8 | 1 | | | Kimbrell | 4 | 2 | 6 | 6 | 4 | | | | | | | | | | | |
| | Kimbrell | 6 | 7 | 6 | 6 | | | | | | | | | | Savitt | 2 | 2 | 0 | | | | | | |
| | Sanchez | 4 | 4 | 4 | | | | | | | | | | 4 | Talbert | 6 | 6 | 6 | | | | | | |
| | Samson | 6 | 6 | 6 | | | | Samson | 0 | 2 | 2 | | | | | | | | | | | | | |
| | Vogt | 5 | 2 | 5 | | | 4 | Talbert | 6 | 6 | 6 | | | | | | | | | | | | | |
| 4 | Talbert | 7 | 6 | 7 | | | | | | | | | | | | | | | | | | | | |

#### Section 7

| 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 | Fourth round |
| | Steele Jr. | 3 | 3 | 2 | | | | | | | | | | | | | | | | | | |
| (3) | Pellizza | 6 | 6 | 6 | (3) | Pellizza | 6 | 6 | 3 | 8 | | | | | | | | | | | | |
| | | | | | | Staubo | 1 | 1 | 6 | 6 | | | | | | | | | | | | |
| | | | | | | | | | | | (3) | Pellizza | 6 | 6 | 6 | | | | | | | |
| | | | | | | | | | | | | Everett | 3 | 4 | 2 | | | | | | | |
| | | | | | | Everett | 6 | 8 | 6 | | | | | | | | | | | | | |
| | | | | | | Perez | 4 | 6 | 2 | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | (3) | Pellizza | 6 | 12 | 1 | 8 | 5 |
| | | | | | | | | | | | | | | | | 5 | McNeill | 4 | 14 | 6 | 6 | 7 |
| | | | | | | Carmona | 3 | 4 | 5 | | | | | | | | | | | | | |
| | | | | | | Hammersley | 6 | 6 | 7 | | | | | | | | | | | | | |
| | | | | | | | | | | | | Hammersley | 3 | 3 | 3 | | | | | | | |
| | | | | | | | | | | | 5 | McNeill | 6 | 6 | 6 | | | | | | | |
| | | | | | | McDiarmid | 3 | 2 | 4 | | | | | | | | | | | | | |
| | | | | | 5 | McNeill | 6 | 6 | 6 | | | | | | | | | | | | | |

#### Section 8

| 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 | Third round | Fourth round | Fourth round | Fourth round | Fourth round | Fourth round |
| (8) | Washer | 5 | 1 | 1 | | | | | | | | | | | | | | |
| | Moylan | 7 | 6 | 6 | | | | | | | | | | | | | | |
| | | | | | | | | Moylan | 1 | 3 | 6 | 6 | 6 | | | | | |
| | | | | | | | 10 | Guernsey | 6 | 6 | 3 | 4 | 3 | | | | | |
| | Neale | 4 | 3 | 4 | | | | | | | | | | | | | | |
| 10 | Guernsey | 6 | 6 | 6 | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | Moylan | 4 | 4 | 4 |
| | | | | | | | | | | | | | | 2 | Kramer | 6 | 6 | 6 |
| (10) | Barton | 4 | 6 | 9 | 3 | 6 | | | | | | | | | | | | |
| | Martin | 6 | 2 | 7 | 6 | 2 | | | | | | | | | | | | |
| | | | | | | | (10) | Barton | 1 | 0 | 3 | | | | | | | |
| | | | | | | | 2 | Kramer | 6 | 6 | 6 | | | | | | | |
| | Hall | 5 | 0 | 3 | | | | | | | | | | | | | | |
| 2 | Kramer | 7 | 6 | 6 | | | | | | | | | | | | | | |