Calgary 1973 ATP
Final
| Winner | Loser | Score | |
|---|---|---|---|
| Ilie Nastase | d. | Paul Gerken | 6-4 7-6 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Ilie Nastase | d. | Ion Tiriac | 3-6 7-5 6-1 |
| Paul Gerken | d. | Juan Gisbert | 6-1 5-7 6-3 |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| Ilie Nastase | d. | Nicholas Kalogeropoulos | 7-5 6-2 |
| Ion Tiriac | d. | Jurgen Fassbender | 6-0 7-5 |
| Paul Gerken | d. | Pat Cramer | 3-6 6-3 7-6 |
| Juan Gisbert | d. | Karl Meiler | 6-4 6-4 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Ilie Nastase | d. | Jasjit Singh | 7-5 6-4 |
| Nicholas Kalogeropoulos | d. | Ian Fletcher | 7-6 7-5 |
| Jurgen Fassbender | d. | Peter Szoke | 6-7 6-2 6-4 |
| Ion Tiriac | d. | Tony Bardsley | 7-5 7-6 |
| Paul Gerken | d. | Mike Belkin | 6-3 6-1 |
| Pat Cramer | d. | John Cooper | 7-5 6-2 |
| Karl Meiler | d. | Jan Kukal | 6-3 7-6 |
| Juan Gisbert | d. | Szabolcz Baranyi | 6-4 6-2 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| Jasjit Singh | d. | Gavorielle Marcu | 7-6 6-3 |
| Nicholas Kalogeropoulos | d. | Peter Burwash | 6-4 6-3 |
| Ian Fletcher | d. | Tito Vazquez | 7-5 6-7 6-2 |
| Jurgen Fassbender | d. | F D Robbins | 6-7 6-2 6-3 |
| Peter Szoke | d. | Jiri Hrebec | 6-7 6-4 7-6 |
| Ion Tiriac | d. | Freddie De Jesus | 4-6 6-3 6-2 |
| Tony Bardsley | d. | Mike Estep | 7-6 7-6 |
| Mike Belkin | d. | Hans Kary | 3-6 6-2 6-4 |
| Paul Gerken | d. | Don Mccormick | 6-1 6-1 |
| Pat Cramer | d. | Victor Amaya | 6-3 6-7 6-3 |
| Jan Kukal | d. | David Brown | 6-2 6-2 |
| Karl Meiler | d. | Jaime Pinto Bravo | 6-0 6-4 |
Data: Jeff Sackmann / Tennis Abstract — CC BY-NC-SA 4.0