By surface
| Surface | Heinz Gunthardt | Blaine Willenborg |
|---|---|---|
| Clay | 0 | 2 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1986-08-04 | ATP | Kitzbuhel | Round of 64 | Clay | Blaine Willenborg | 6-7 | 6-7 | |||
| 1984-07-30 | ATP | North Conway | Round of 16 | Clay | Blaine Willenborg | 6-7 | 0-6 |