By surface
| Surface | Sammy Giammalva Jr | Trey Waltke |
|---|---|---|
| Hard | 1 | 1 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1983-04-24 | ATP | Las Vegas | Round of 16 | Hard | Sammy Giammalva Jr | 3-6 | 6-3 | 6-4 | ||
| 1981-10-12 | ATP | Basel | Quarterfinal | Hard | Trey Waltke | 1-6 | 2-6 |