By surface
| Surface | Guillermo Vilas | Fernando Demattei |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1970-11-08 | ATP | Buenos Aires | Round of 32 | Clay | Guillermo Vilas | 6-2 | 6-4 | 6-3 |
| Surface | Guillermo Vilas | Fernando Demattei |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1970-11-08 | ATP | Buenos Aires | Round of 32 | Clay | Guillermo Vilas | 6-2 | 6-4 | 6-3 |