Andre Agassi defeated Jan Siemerink 6-4 6-3 in the Adelaide round of 16 on hard. The result followed the form book — Andre Agassi came in leading the head-to-head 4–1. Andre Agassi extended the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-10-04 | Basel | R32 | hard | Andre Agassi | 6-3 6-4 |
| 1997-04-04 | Davis Cup WG QF: USA vs NED | RR | hard | Andre Agassi | 3-6 3-6 6-3 6-3 6-3 |
| 1996-08-26 | US Open | R32 | hard | Andre Agassi | 6-4 6-2 7-6(7) |
| 1994-08-15 | New Haven | R32 | hard | Jan Siemerink | 6-3 3-6 6-3 |
| 1992-08-31 | US Open | R32 | hard | Andre Agassi | 6-2 6-3 6-3 |
Averages over each player's completed matches in the selected window (200 vs 151). 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