Head to head
4
Hard
0
1
Clay
0
1
Grass
0
Andre Agassi's wins on the left · Nicolas Kiefer's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 2005 | Canada Masters | Hard | R16 | Andre Agassi | 6-4 6-2 |
| 2002 | Rome Masters | Clay | R64 | Andre Agassi | 6-3 6-2 |
| 2001 | Wimbledon | Grass | R16 | Andre Agassi | 6-3 7-5 7-5 |
| 2001 | Indian Wells Masters | Hard | R16 | Andre Agassi | 6-4 5-7 6-4 |
| 1999 | Hong Kong | Hard | QF | Andre Agassi | 6-2 6-2 |
| 1998 | Cincinnati Masters | Hard | R64 | Andre Agassi | 4-6 7-6(3) 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.