By surface
| Surface | Onny Parun | Lito Alvarez |
|---|---|---|
| Clay | 1 | 1 |
All meetings (3)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1977-07-12 | ATP | Hilversum | Semifinal | Clay | Lito Alvarez | 4-6 | 4-6 | 7-6 | 7-6 | 4-6 |
| 1975-10-12 | ATP | Madrid | Round of 64 | Clay | Onny Parun | 2-6 | 7-5 | 6-4 | ||
| 1975-07-21 | ATP | Washington | Round of 64 | — | Lito Alvarez | 3-6 | 2-6 |