Head to head
1
Hard
1
0
Clay
2
1
Grass
0
Sammy Giammalva Jr.'s wins on the left · Bill Scanlon's on the right · bar lengths share one scale
All meetings (5)
| 1989 | Memphis | Hard | R64 | Bill Scanlon | 6-3 6-1 |
| 1986 | Scottsdale | Hard | R32 | Sammy Giammalva Jr. | 7-5 3-6 6-4 |
| 1984 | Sydney-2 | Grass | QF | Sammy Giammalva Jr. | 7-6 6-3 |
| 1983 | Houston WCT | Clay | QF | Bill Scanlon | 6-2 6-2 |
| 1982 | Gstaad | Clay | R16 | Bill Scanlon | 7-5 7-6 |
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.