Head to head
1
Hard
1
Trey Waltke's wins on the left · Sammy Giammalva Jr.'s on the right · bar lengths share one scale
All meetings (2)
| 1983 | Las Vegas | Hard | R16 | Sammy Giammalva Jr. | 6-3 1-6 6-4 |
| 1981 | Basel | Hard | QF | Trey Waltke | 6-1 6-2 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.