Felix Mantilla defeated Pete Sampras 6-4 6-7 6-3 in the Rome Masters round of 64 on clay. The upset overturned the form book — Pete Sampras came in leading the head-to-head 2–1, defending last year's round of 64. Felix Mantilla narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-08-20 | Long Island | QF | hard | Pete Sampras | 7-5 6-3 |
| 1999-03-08 | Indian Wells Masters | R32 | hard | Felix Mantilla | 7-6(6) 3-6 6-3 |
| 1997-09-23 | Grand Slam Cup | R16 | carpet | Pete Sampras | 6-4 3-6 6-2 |
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 (156 vs 40). ATP, WTA & Challenger.