Mark Philippoussis defeated Andre Agassi 7-6 7-6 in the Indian Wells Masters round of 64 on hard. The upset overturned the form book — Andre Agassi came in leading the head-to-head 6–1. Mark Philippoussis narrowed the head-to-head to 6–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-06-23 | Wimbledon | R16 | grass | Mark Philippoussis | 6-3 2-6 6-7(4) 6-3 6-4 |
| 2003-03-17 | Miami Masters | R16 | hard | Andre Agassi | 4-6 6-3 6-2 |
| 2003-02-10 | San Jose | R16 | hard | Andre Agassi | 6-4 6-1 |
| 2000-06-26 | Wimbledon | QF | grass | Andre Agassi | 7-6(4) 6-3 6-4 |
| 2000-01-17 | Australian Open | R16 | hard | Andre Agassi | 6-4 7-6(4) 5-7 6-3 |
| 1999-11-01 | Paris Masters | QF | hard | Andre Agassi | 6-4 6-1 |
| 1999-10-25 | Stuttgart Masters | R32 | carpet | Andre Agassi | 6-2 6-4 |
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 200). ATP, WTA & Challenger.