Head to head
0
Clay
1
1
Carpet
0
Udo Riglewski's wins on the left · Sergio Casal's on the right · bar lengths share one scale
All meetings (2)
| 1990 | Moscow | Carpet | QF | Udo Riglewski | 4-6 7-6 6-3 |
| 1989 | Barcelona | Clay | R64 | Sergio Casal | 6-1 6-4 |
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.