Head to head
Rivalry summary
Jan Apell and Mark Koevermans met 1 times on the ATP tour between 1991 and 1991. Jan Apell leads the head-to-head 1–0 against Mark Koevermans.
1
Hard
0
Jan Apell's wins on the left · Mark Koevermans's on the right · bar lengths share one scale
All meetings (1)
| 1991 | Tel Aviv | Hard | R32 | Jan Apell | 6-1 6-0 |
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.