Head to head
1
Hard
0
1
Carpet
0
Trey Waltke's wins on the left · Russell Simpson's on the right · bar lengths share one scale
All meetings (2)
| 1980 | Columbus | Hard | R16 | Trey Waltke | 7-5 6-2 |
| 1975 | San Antonio WCT | Carpet | R32 | Trey Waltke | 6-3 4-6 6-4 |
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.