Andre Agassi defeated Jan Siemerink 6-3 6-4 in the Basel round of 32 on hard. The result followed the form book — Andre Agassi came in leading the head-to-head 2–0, defending last year's final. Andre Agassi extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-01-05 | Adelaide | R16 | hard | Andre Agassi | 6-4 6-3 |
| 1997-04-04 | Davis Cup WG QF: USA vs NED | RR | hard | Andre Agassi | 3-6 3-6 6-3 6-3 6-3 |
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 91). ATP, WTA & Challenger.