Head to head
1
Hard
1
0
Grass
1
Jan-Michael Gambill's wins on the left · Peter Wessels's on the right · bar lengths share one scale
All meetings (3)
| 2005 | Tokyo | Hard | R64 | Jan-Michael Gambill | 6-2 5-7 6-3 |
| 2005 | Delray Beach | Hard | R16 | Peter Wessels | 6-4 6-7(3) 6-3 |
| 1998 | 's-Hertogenbosch | Grass | R32 | Peter Wessels | 6-4 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.