Head to head
1
Hard
1
1
Clay
0
1
Carpet
0
Sammy Giammalva Jr.'s wins on the left · Terry Moor's on the right · bar lengths share one scale
All meetings (4)
| 1984 | Tokyo-1 | Hard | R16 | Terry Moor | 7-6 6-4 |
| 1983 | Monterrey | Carpet | QF | Sammy Giammalva Jr. | 1-6 7-5 6-3 |
| 1981 | Houston WCT | Clay | R16 | Sammy Giammalva Jr. | 6-4 7-5 |
| 1981 | Tampa | Hard | R32 | Sammy Giammalva Jr. | 6-0 4-6 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.