Head to head
1
Hard
3
Shuzo Matsuoka's wins on the left · Jan Siemerink's on the right · bar lengths share one scale
All meetings (4)
| 1996 | Hong Kong | Hard | QF | Jan Siemerink | 6-3 2-6 7-6(2) |
| 1995 | New Haven | Hard | R64 | Jan Siemerink | 6-4 6-4 |
| 1991 | Singapore | Hard | QF | Jan Siemerink | 6-3 6-4 |
| 1991 | Seoul | Hard | QF | Shuzo Matsuoka | 4-6 6-2 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.