By surface
| Surface | Mason Beiler | Gaston Tonello |
|---|---|---|
| Hard | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1986-10-13 | WTA | Tokyo Japan Open | Quarterfinal | Hard | Bettina Fulco | 6-7 | 4-6 |
| Surface | Mason Beiler | Gaston Tonello |
|---|---|---|
| Hard | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1986-10-13 | WTA | Tokyo Japan Open | Quarterfinal | Hard | Bettina Fulco | 6-7 | 4-6 |