| First Round | | | Second Round | | | Quarterfinals | | | Semifinals | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
| 2 | Juan Gisbert Sr.
Ilie Năstase | 7 | 7 | | | | | |
| | Martin Mulligan
Nicola Pietrangeli | 5 | 6 | | | | 2 | Juan Gisbert Sr.
Ilie Năstase | 6 | 6 | | |
| | Jeff Borowiak
Jim McManus | 6 | 4 | 6 | | | | Jeff Borowiak
Jim McManus | 4 | 2 | | |
| | Eddie Dibbs
Harold Solomon | 2 | 6 | 3 | | | | | | 2 | Juan Gisbert Sr.
Ilie Năstase | 5 | 7 | 6 | |
| | Patricio Cornejo
Jaime Fillol | 6 | 7 | | | | | | | Patricio Cornejo
Jaime Fillol | 7 | 6 | 3 | |
| | Paul Gerken
Roscoe Tanner | 3 | 6 | | | | | Patricio Cornejo
Jaime Fillol | 6 | 6 | | | | | |
| | Corrado Barazzutti
Tonino Zugarelli | 6 | 6 | | | | | Corrado Barazzutti
Tonino Zugarelli | 3 | 1 | | |
| | Julián Ganzábal
Steve Krulevitz | 3 | 1 | | | | | 2 | Juan Gisbert Sr.
Ilie Năstase | 1 | 6 | 6 | |
| 3 | Tom Gorman
Marty Riessen | 6 | 6 | | | | | | | 3 | Tom Gorman
Marty Riessen | 6 | 1 | 1 | |
| | Jiří Hřebec
Kjell Johansson | 3 | 3 | | | | 3 | Tom Gorman
Marty Riessen | 6 | 7 | | | | | |
| | Dick Crealy
Onny Parun | 7 | 6 | | | | | Dick Crealy
Onny Parun | 4 | 6 | | |
| | Ezio Di Matteo
Piero Toci | 5 | 4 | | | | | | | 3 | Tom Gorman
Marty Riessen | 6 | 6 | | |
| | Charlie Pasarell
Erik van Dillen | 6 | 6 | | | | | | | Charlie Pasarell
Erik van Dillen | 3 | 4 | | |
| | Massimo Di Domenico
Fabrizio Matteoli | 3 | 4 | | | | | Charlie Pasarell
Erik van Dillen | w/o | | | | |
| | Jan Kodeš
Vladimír Zedník | 6 | 6 | | | | | Jan Kodeš
Vladimír Zedník | | | | |
| | Thomaz Koch
Jaime Pinto Bravo | 2 | 3 | | | |