Head to head
1
Hard
0
0
Clay
1
Sjeng Schalken's wins on the left · Carlos Costa's on the right · bar lengths share one scale
All meetings (2)
| 1998 | Doha | Hard | R16 | Sjeng Schalken | 7-5 2-6 7-6(5) |
| 1997 | Barcelona | Clay | R64 | Carlos Costa | 6-2 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.