Head to head
1
Hard
0
0
Clay
1
0
Grass
1
1
Carpet
0
Byron Black's wins on the left · Sjeng Schalken's on the right · bar lengths share one scale
All meetings (4)
| 1998 | Los Angeles | Hard | R32 | Byron Black | 6-4 7-6(8) |
| 1998 | St. Poelten | Clay | R16 | Sjeng Schalken | 6-1 6-4 |
| 1996 | Beijing | Carpet | QF | Byron Black | 7-6(3) 6-4 |
| 1996 | Rosmalen | Grass | R32 | Sjeng Schalken | 6-3 7-5(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.