Head to head
Rivalry summary
Jan Siemerink and Cecil Mamiit met 1 times on the ATP tour between 2001 and 2001. Jan Siemerink leads the head-to-head 1–0 against Cecil Mamiit.
1
Hard
0
Jan Siemerink's wins on the left · Cecil Mamiit's on the right · bar lengths share one scale
All meetings (1)
| 2001 | Copenhagen | Hard | QF | Jan Siemerink | 6-4 6-7(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.