By surface
| Surface | Mason Beiler | Mario Alonso |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1989-05-15 | WTA | Berlin | Round of 64 | Clay | Bettina Fulco | 6-4 | 4-6 | 1-6 |
| Surface | Mason Beiler | Mario Alonso |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1989-05-15 | WTA | Berlin | Round of 64 | Clay | Bettina Fulco | 6-4 | 4-6 | 1-6 |