Head to head
3
Hard
5
1
Grass
0
Novak Djokovic's wins on the left · Andy Roddick's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (9)
| 2012 | London Olympics | Grass | R32 | Novak Djokovic | 6-2 6-1 |
| 2010 | Tour Finals | Hard | RR | Novak Djokovic | 6-2 6-3 |
| 2010 | Cincinnati Masters | Hard | QF | Andy Roddick | 6-4 7-5 |
| 2009 | Canada Masters | Hard | QF | Andy Roddick | 6-4 7-6(4) |
| 2009 | Indian Wells Masters | Hard | QF | Andy Roddick | 6-3 6-2 |
| 2009 | Australian Open | Hard | QF | Andy Roddick | 6-7(3) 6-4 6-2 2-1 RET |
| 2008 | US Open | Hard | QF | Novak Djokovic | 6-2 6-3 3-6 7-6(5) |
| 2008 | Dubai | Hard | SF | Andy Roddick | 7-6(5) 6-3 |
| 2007 | Canada Masters | Hard | QF | Novak Djokovic | 7-6(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.