Head to head
1
Hard
0
1
Clay
0
Mark Koevermans's wins on the left · Jason Stoltenberg's on the right · bar lengths share one scale
All meetings (2)
| 1992 | Bologna | Clay | R32 | Mark Koevermans | 4-6 6-2 6-3 |
| 1991 | Australian Open | Hard | R64 | Mark Koevermans | 6-3 6-3 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.