By surface
| Surface | Carlos Rivas | Sonny Liu |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1982-03-22 | WTA | Rio de Janeiro | Round of 32 | Clay | Patricia Medrado | 6-3 | 0-6 | 4-6 |
| Surface | Carlos Rivas | Sonny Liu |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1982-03-22 | WTA | Rio de Janeiro | Round of 32 | Clay | Patricia Medrado | 6-3 | 0-6 | 4-6 |