By surface
| Surface | Jaime Oncins | Lars Koslowski |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1992-05-18 | ATP | Bologna | Quarterfinal | Clay | Jaime Oncins | 7-61 | 7-5 |
| Surface | Jaime Oncins | Lars Koslowski |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1992-05-18 | ATP | Bologna | Quarterfinal | Clay | Jaime Oncins | 7-61 | 7-5 |