Head to head
0
Hard
4
2
Clay
0
Wayne Ferreira's wins on the left · Jan Siemerink's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 1998 | Cincinnati Masters | Hard | R32 | Jan Siemerink | 7-6(5) 6-4 |
| 1998 | Hamburg Masters | Clay | R64 | Wayne Ferreira | 6-4 6-2 |
| 1996 | New Haven | Hard | SF | Jan Siemerink | 6-3 3-6 6-3 |
| 1995 | Long Island | Hard | R32 | Jan Siemerink | 6-3 2-6 6-4 |
| 1995 | Auckland | Hard | R32 | Jan Siemerink | 2-6 7-5 6-3 |
| 1993 | Roland Garros | Clay | R128 | Wayne Ferreira | 6-3 7-6(3) 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.