Head to head
Rivalry summary
Luiz Mattar and Jan Siemerink met 1 times on the ATP tour between 1993 and 1993. Luiz Mattar leads the head-to-head 1–0 against Jan Siemerink.
1
Hard
0
Luiz Mattar's wins on the left · Jan Siemerink's on the right · bar lengths share one scale
All meetings (1)
| 1993 | Long Island | Hard | R32 | Luiz Mattar | 6-7(1) 6-4 7-6(5) |
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.