By surface
| Surface | Carlos Costa | Mariano Zabaleta |
|---|---|---|
| Hard | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1999-01-04 | ATP | Doha | Round of 32 | Hard | Mariano Zabaleta | 4-6 | 3-6 |
| Surface | Carlos Costa | Mariano Zabaleta |
|---|---|---|
| Hard | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1999-01-04 | ATP | Doha | Round of 32 | Hard | Mariano Zabaleta | 4-6 | 3-6 |