Head to head
2
Hard
3
Nicolas Kiefer's wins on the left · Vincent Spadea's on the right · bar lengths share one scale
All meetings (5)
| 2007 | US Open | Hard | R128 | Nicolas Kiefer | 6-2 7-6(1) 6-3 |
| 2004 | Scottsdale | Hard | F | Vincent Spadea | 7-5 6-7(5) 6-3 |
| 2003 | Los Angeles | Hard | QF | Nicolas Kiefer | 1-6 7-5 6-3 |
| 2003 | Indian Wells Masters | Hard | R32 | Vincent Spadea | 6-3 6-2 |
| 1998 | Adelaide | Hard | R32 | Vincent Spadea | 6-3 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.