Head to head
1
Hard
1
1
Grass
1
1
Carpet
0
Johan Kriek's wins on the left · Sammy Giammalva Jr.'s on the right · bar lengths share one scale
All meetings (5)
| 1985 | Chicago | Carpet | R32 | Johan Kriek | 6-4 6-0 |
| 1985 | Delray Beach | Hard | R32 | Sammy Giammalva Jr. | 6-2 7-6 |
| 1984 | Sydney-2 | Grass | SF | Sammy Giammalva Jr. | 5-7 6-4 6-3 |
| 1984 | Livingston | Hard | SF | Johan Kriek | 6-3 4-6 6-3 |
| 1983 | Wimbledon | Grass | R128 | Johan Kriek | 6-4 6-3 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.