By surface
| Surface | Jaime Oncins | Martin Wostenholme |
|---|---|---|
| Hard | 1 | 1 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1989-02-06 | ATP | Guaruja | Round of 32 | Hard | Martin Wostenholme | 2-6 | 3-6 | |||
| 1988-10-31 | ATP | Sao Paulo | Round of 32 | Hard | Jaime Oncins | 7-6 | 7-6 |