Marc Rosset defeated Daniel Vacek 3-6 6-2 7-5 in the Lyon round of 16 on clay. The upset overturned the form book — Daniel Vacek came in leading the head-to-head 3–2, defending last year's round of 16. Marc Rosset narrowed the head-to-head to 3–3.
| 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 6-0 |
| 1997-08-18 | Long Island | R32 | hard | Marc Rosset | 4-6 6-3 6-2 |
| 1997-04-21 | Monte Carlo Masters | R32 | clay | Daniel Vacek | 7-6 6-1 |
| 1996-06-17 | Halle | R16 | grass | Daniel Vacek | 4-6 6-3 7-6 |
Averages over each player's completed matches in the selected window (200 vs 180). 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