By surface
| Surface | Mariano Zabaleta | Oscar Serrano |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1998-10-05 | ATP | Palermo | Round of 32 | Clay | Mariano Zabaleta | 6-2 | 4-6 | 7-63 |
| Surface | Mariano Zabaleta | Oscar Serrano |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1998-10-05 | ATP | Palermo | Round of 32 | Clay | Mariano Zabaleta | 6-2 | 4-6 | 7-63 |