Head to head
1
Hard
1
0
Clay
1
3
Carpet
1
Jan Siemerink's wins on the left · Sergi Bruguera's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (7)
| 1998 | London | Carpet | R32 | Jan Siemerink | 6-1 7-6(3) |
| 1997 | Monte Carlo Masters | Clay | R32 | Sergi Bruguera | 6-4 6-4 |
| 1996 | New Haven | Hard | R16 | Jan Siemerink | 6-4 6-3 |
| 1996 | Milan | Carpet | R32 | Jan Siemerink | 6-3 6-2 |
| 1994 | Milan | Carpet | R16 | Sergi Bruguera | 6-4 6-4 |
| 1993 | Australian Open | Hard | R32 | Sergi Bruguera | 7-6(5) 4-6 6-3 3-6 9-7 |
| 1991 | Stuttgart Indoor | Carpet | R16 | Jan Siemerink | 6-2 6-3 |
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.