Head to head
1
Grass
0
1
Carpet
0
Nicolas Kiefer's wins on the left · Alexander Popp's on the right · bar lengths share one scale
All meetings (2)
| 2005 | Moscow | Carpet | R32 | Nicolas Kiefer | 6-4 6-1 |
| 2002 | Halle | Grass | QF | Nicolas Kiefer | 7-5 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.