Sofia 1 CH 1973 ATP
Final
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Tom Okker | m. | John Alexander | 7-5 6-4 |
Semifinal
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Tom Okker | m. | Tom Gorman | 6-3 7-6 |
| John Alexander | m. | Cliff Richey | 7-6 0-6 7-6 |
Perempat final
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Tom Okker | m. | Torben Ulrich | 6-2 6-2 |
| Tom Gorman | m. | Mark Cox | 4-6 6-1 6-4 |
| Cliff Richey | m. | Brian Gottfried | 6-4 2-6 6-2 |
| John Alexander | m. | Arthur Ashe | 6-1 6-2 |
Babak 16 besar
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Tom Okker | m. | Frew Mcmillan | 6-1 6-4 |
| Torben Ulrich | m. | Robert Kreiss | 6-3 7-6 |
| Tom Gorman | m. | Kim Warwick | 6-0 2-6 6-3 |
| Mark Cox | m. | Pat Cramer | 6-2 6-1 |
| Brian Gottfried | m. | John Bartlett | 6-4 6-4 |
| Cliff Richey | m. | Bob Mckinley | 6-0 6-4 |
| John Alexander | m. | Bob Carmichael | 6-4 5-7 6-4 |
| Arthur Ashe | m. | Sherwood Stewart | 6-4 6-4 |
Babak 32 besar
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Tom Okker | m. | Billy Higgins | 6-4 6-3 |
| Frew Mcmillan | m. | William Brown | 6-3 7-6 |
| Robert Kreiss | m. | Jaime Fillol | 6-1 2-6 7-5 |
| Torben Ulrich | m. | Terry Ryan | 6-2 6-3 |
| Tom Gorman | m. | Saeed Meer | 6-2 6-2 |
| Kim Warwick | m. | Milan Holecek | 6-3 2-6 7-6 |
| Mark Cox | m. | Bill Lloyd | 6-2 6-2 |
| Pat Cramer | m. | Mike Estep | 4-6 7-5 DEF |
| John Bartlett | m. | Dick Knight | 2-6 3-6 6-4 |
| Brian Gottfried | m. | Jean Baptiste Chanfreau | 6-2 7-6 |
| Bob Mckinley | m. | Brian Teacher | 7-6 7-6 |
| Cliff Richey | m. | Steve Faulk | 6-3 6-1 |
| Bob Carmichael | m. | Steve Tidball | 6-4 6-2 |
| John Alexander | m. | Gerald Battrick | 4-6 6-1 7-6 |
| Sherwood Stewart | m. | Graham Stilwell | 6-3 6-2 |
| Arthur Ashe | m. | Gary Groslimond | 6-2 7-5 |