Head to head
4
Hard
0
0
Grass
1
Jan-Michael Gambill's wins on the left · Mark Philippoussis's on the right · bar lengths share one scale
All meetings (5)
| 2000 | US Open | Hard | R64 | Jan-Michael Gambill | 6-4 6-4 6-4 |
| 2000 | Miami Masters | Hard | R16 | Jan-Michael Gambill | 6-2 6-7(6) 6-3 |
| 1999 | Stockholm | Hard | QF | Jan-Michael Gambill | 4-6 6-2 7-5 |
| 1999 | Queen's Club | Grass | R32 | Mark Philippoussis | 2-6 6-3 6-4 |
| 1998 | Indian Wells Masters | Hard | R64 | Jan-Michael Gambill | 7-6(7) 5-7 7-6(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.