Head to head
2
Hard
0
Nicolas Kiefer's wins on the left · Jason Stoltenberg's on the right · bar lengths share one scale
All meetings (2)
| 2000 | Hong Kong | Hard | R16 | Nicolas Kiefer | 6-3 6-2 |
| 1999 | US Open | Hard | R128 | Nicolas Kiefer | 6-4 6-3 1-6 4-6 6-3 |
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.