Head to head
0
Clay
2
0
Grass
1
1
Carpet
0
Jan Siemerink's wins on the left · Andrei Medvedev's on the right · bar lengths share one scale
All meetings (4)
| 2000 | San Marino | Clay | QF | Andrei Medvedev | 6-4 7-5 |
| 1993 | Kitzbuhel | Clay | QF | Andrei Medvedev | 6-4 6-4 |
| 1993 | Halle | Grass | R32 | Andrei Medvedev | 7-6(7) 6-3 |
| 1992 | Vienna | Carpet | R16 | Jan Siemerink | 6-3 7-6(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.