Players
| Player | Country | Reached | |
|---|---|---|---|
 |
Arthur Ashe | USA | Round Robin |
 |
Stan Smith | USA | Round Robin |
 |
Ilie Nastase | ROU | Round Robin |
 |
Ion Tiriac | ROU | Round Robin |
Other matches
| Round | Winner | Loser | Score |
|---|---|---|---|
| RR | Arthur Ashe | Ilie Nastase | 6-2 15-13 7-5 |
| RR | Stan Smith | Ion Tiriac | 6-8 6-3 5-7 6-4 6-4 |
| RR | Stan Smith | Ilie Nastase | 4-6 4-6 6-4 6-1 11-9 |
| RR | Arthur Ashe | Ion Tiriac | 6-3 8-6 3-6 4-0 RET |