Head to head
0
Hard
1
1
Clay
0
Sjeng Schalken's wins on the left · Hernan Gumy's on the right · bar lengths share one scale
All meetings (2)
| 2000 | St. Poelten | Clay | R32 | Sjeng Schalken | 6-3 6-4 |
| 1999 | Scottsdale | Hard | R32 | Hernan Gumy | 3-6 7-5 6-1 |
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.