Mariano Puerta defeated Gustavo Kuerten 6-4 1-6 7-6 in the Umag quarter-final on clay. The upset overturned the form book — Gustavo Kuerten came in leading the head-to-head 3–1. Mariano Puerta narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-03-06 | Bogota | SF | hard | Mariano Puerta | 3-6 6-1 7-6(3) |
| 2000-02-28 | Santiago | F | clay | Gustavo Kuerten | 7-6(3) 6-3 |
| 1999-07-05 | Gstaad | R32 | clay | Gustavo Kuerten | 6-4 6-4 |
| 1998-08-17 | New Haven | R64 | hard | Gustavo Kuerten | 6-3 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 (199 vs 200). ATP, WTA & Challenger.