Jan Siemerink defeated Petr Korda 3-6 7-6 7-5 in the Basel quarter-final on hard. The upset overturned the form book — Petr Korda came in leading the head-to-head 2–1, but Jan Siemerink had been the form player, winning 2 of their last 4 on hard. Jan Siemerink narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-08-04 | Cincinnati Masters | R32 | hard | Jan Siemerink | 7-5 1-6 6-1 |
| 1992-10-19 | Vienna | SF | hard | Petr Korda | 7-5 6-7(2) 6-3 |
| 1992-10-05 | Toulouse | SF | hard | Petr Korda | 7-6(5) 6-3 |
Averages over each player's completed matches in the selected window (199 vs 145). 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