Head to head
1
Hard
1
0
Clay
1
Jan-Michael Gambill's wins on the left · David Sanchez's on the right · bar lengths share one scale
All meetings (3)
| 2004 | St. Poelten | Clay | R32 | David Sanchez | 6-3 6-4 |
| 2004 | Auckland | Hard | R32 | David Sanchez | 7-6(5) 6-3 |
| 2003 | US Open | Hard | R128 | Jan-Michael Gambill | 7-6(3) 6-2 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.