Chicago 1973 ATP
Final
| Winner | Loser | Score | |
|---|---|---|---|
| Tom Okker | d. | John Newcombe | 3-6 7-6 6-3 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Tom Okker | d. | Ilie Nastase | 3-6 6-3 6-3 |
| John Newcombe | d. | Marty Riessen | 1-6 7-6 6-4 |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| Ilie Nastase | d. | Graham Stilwell | 6-2 7-6 |
| Tom Okker | d. | Gerald Battrick | 6-4 6-4 |
| Marty Riessen | d. | Eddie Dibbs | 6-1 6-3 |
| John Newcombe | d. | Brian Gottfried | 6-7 6-4 6-2 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Ilie Nastase | d. | Phil Dent | 4-6 6-4 7-6 |
| Graham Stilwell | d. | Cliff Richey | 6-4 5-7 6-4 |
| Gerald Battrick | d. | Torben Ulrich | 6-1 7-6 |
| Tom Okker | d. | John Bartlett | 6-4 6-4 |
| Eddie Dibbs | d. | Richard Russell | 6-2 7-6 |
| Marty Riessen | d. | Clark Graebner | 6-3 7-6 |
| Brian Gottfried | d. | Tenny Svensson | 7-6 6-4 |
| John Newcombe | d. | Dick Crealy | 6-1 6-2 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| Ilie Nastase | d. | Jasjit Singh | 6-4 6-4 |
| Phil Dent | d. | Pat Cramer | 3-6 7-6 6-4 |
| Graham Stilwell | d. | Charles Owens | 3-6 6-3 6-2 |
| Cliff Richey | d. | Frank Froehling | 6-2 6-2 |
| Torben Ulrich | d. | Roger Taylor | 3-6 6-3 6-2 |
| Gerald Battrick | d. | Kim Warwick | 7-6 6-3 |
| John Bartlett | d. | Bill Lloyd | 6-7 6-3 6-1 |
| Tom Okker | d. | Owen Davidson | 6-1 6-4 |
| Eddie Dibbs | d. | Felix Ponte | 6-3 6-2 |
| Richard Russell | d. | Terry Ryan | 6-2 0-6 6-1 |
| Clark Graebner | d. | Steve Faulk | 6-3 6-4 |
| Marty Riessen | d. | Vitas Gerulaitis | 6-3 6-3 |
| Brian Gottfried | d. | Grover Raz Reid | 7-5 6-2 |
| Tenny Svensson | d. | Andrew Pattison | 7-6 4-6 6-3 |
| Dick Crealy | d. | Birger Andersson | 6-3 6-2 |
| John Newcombe | d. | Barry Phillips Moore | 6-4 6-2 |