By surface
| Surface | Blaine Willenborg | Ricki Osterthun |
|---|---|---|
| Clay | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1986-06-09 | ATP | Bologna | Round of 32 | Clay | Ricki Osterthun | 6-3 | 3-6 | 5-7 |
| Surface | Blaine Willenborg | Ricki Osterthun |
|---|---|---|
| Clay | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1986-06-09 | ATP | Bologna | Round of 32 | Clay | Ricki Osterthun | 6-3 | 3-6 | 5-7 |