Head to head
4
Hard
1
James Blake's wins on the left · Nicolas Kiefer's on the right · bar lengths share one scale
All meetings (5)
| 2008 | Basel | Hard | R32 | James Blake | 3-6 6-3 6-4 |
| 2008 | Canada Masters | Hard | QF | Nicolas Kiefer | 6-1 6-2 |
| 2007 | Cincinnati Masters | Hard | R32 | James Blake | 6-4 6-4 |
| 2005 | Los Angeles | Hard | R32 | James Blake | 3-2 RET |
| 2002 | Vienna | Hard | R16 | James Blake | 6-4 7-6(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.