Head to head
2
Hard
0
1
Grass
0
1
Carpet
0
Sammy Giammalva Jr.'s wins on the left · Ben Testerman's on the right · bar lengths share one scale
All meetings (4)
| 1987 | Livingston | Hard | R32 | Sammy Giammalva Jr. | 6-4 3-6 7-5 |
| 1985 | Wimbledon | Grass | R32 | Sammy Giammalva Jr. | 4-6 6-3 7-5 7-6 |
| 1984 | Livingston | Hard | R32 | Sammy Giammalva Jr. | 7-5 6-4 |
| 1983 | Monterrey | Carpet | F | Sammy Giammalva Jr. | 6-4 3-6 6-3 |
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.