Head to head
Rivalry summary
Sammy Giammalva Jr. and Tim Wilkison met 4 times on the ATP tour between 1981 and 1989. Their head-to-head is level at 2–2. By surface, Jr. leads 2–1 on hard.
2
Hard
1
0
Clay
1
Sammy Giammalva Jr.'s wins on the left · Tim Wilkison's on the right · bar lengths share one scale
All meetings (4)
| 1989 | Charleston | Clay | R32 | Tim Wilkison | 7-5 6-2 |
| 1988 | Australian Open | Hard | R128 | Sammy Giammalva Jr. | 6-2 6-4 6-4 |
| 1987 | Los Angeles | Hard | R32 | Tim Wilkison | 6-7 6-4 6-2 |
| 1981 | Montreal | Hard | R64 | Sammy Giammalva Jr. | 6-3 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.