By surface
| Surface | Onny Parun | Jairo Velasco |
|---|---|---|
| Clay | 3 | 0 |
All meetings (3)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1976-08-09 | ATP | Indianapolis | Round of 32 | Clay | Onny Parun | 7-6 | 6-4 | |||
| 1975-08-05 | ATP | Louisville | Round of 64 | Clay | Onny Parun | 6-0 | 6-1 | |||
| 1974-07-21 | ATP | Kitzbuhel | Semifinal | Clay | Onny Parun | 6-2 | 4-6 | 3-6 | 6-1 | 6-2 |