Jan Siemerink defeated Adrian Voinea 7-6 5-7 6-7 7-6 6-4 in the ROU vs NED round robin on hard. The upset overturned the form book — Adrian Voinea came in leading the head-to-head 2–1. Jan Siemerink narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2002-02-18 | Rotterdam | Q16 | hard | Jan Siemerink | 6-4 7-6(3) |
| 1996-02-26 | Milan | R16 | carpet | Adrian Voinea | 6-4 6-4 |
| 1996-01-01 | Doha | R32 | hard | Adrian Voinea | 6-2 6-3 |
Averages over each player's completed matches in the selected window (198 vs 200). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About