Marc Rosset defeated Daniel Vacek 4-6 6-3 6-2 in the Long Island round of 32 on hard. The upset overturned the form book — Daniel Vacek came in leading the head-to-head 2–1. Marc Rosset narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-08-24 | Long Island | R32 | hard | Daniel Vacek | 6-1 6-4 |
| 1998-04-03 | Davis Cup WG R1: SUI vs CZE | RR | carpet | Marc Rosset | 3-6 6-2 7-6(5) 6-0 |
| 1997-04-21 | Monte Carlo Masters | R32 | clay | Daniel Vacek | 7-6(5) 6-1 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 181). ATP, WTA & Challenger.