Head to head
4
Hard
2
0
Grass
1
Lleyton Hewitt's wins on the left · Jan-Michael Gambill's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (7)
| 2002 | Miami Masters | Hard | R32 | Lleyton Hewitt | 3-6 6-4 7-5 |
| 2002 | Indian Wells Masters | Hard | R16 | Lleyton Hewitt | 6-2 6-4 |
| 2002 | San Jose | Hard | SF | Lleyton Hewitt | 7-5 6-4 |
| 2001 | Miami Masters | Hard | SF | Jan-Michael Gambill | 7-5 6-4 |
| 2000 | Wimbledon | Grass | R128 | Jan-Michael Gambill | 6-3 6-2 7-5 |
| 2000 | Miami Masters | Hard | QF | Lleyton Hewitt | 6-4 7-6(3) |
| 1999 | Scottsdale | Hard | F | Jan-Michael Gambill | 7-6(2) 4-6 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.