Head to head
2
Hard
2
Andy Roddick's wins on the left · Jan-Michael Gambill's on the right · bar lengths share one scale
All meetings (4)
| 2004 | Indian Wells Masters | Hard | R64 | Andy Roddick | 7-6(3) 6-2 |
| 2004 | Scottsdale | Hard | QF | Andy Roddick | 6-7(4) 6-4 6-3 |
| 2002 | Los Angeles | Hard | SF | Jan-Michael Gambill | 7-5 6-3 |
| 2001 | San Jose | Hard | R16 | Jan-Michael Gambill | 7-6(5) 7-6(1) |
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.