By surface
| Surface | Sandy Mayer | Sammy Giammalva Jr |
|---|---|---|
| Hard | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1981-01-19 | ATP | San Juan | Round of 32 | Hard | Sandy Mayer | 4-6 | 6-4 | 6-3 |
| Surface | Sandy Mayer | Sammy Giammalva Jr |
|---|---|---|
| Hard | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1981-01-19 | ATP | San Juan | Round of 32 | Hard | Sandy Mayer | 4-6 | 6-4 | 6-3 |