Juan Ignacio Chela defeated Mariano Zabaleta 6-7 6-3 6-3 in the Kitzbuhel round of 32 on clay. The upset overturned the form book — Mariano Zabaleta came in leading the head-to-head 1–0, defending last year's semi-final. Juan Ignacio Chela claimed a first win over Mariano Zabaleta in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-05-03 | Rome Masters | R64 | clay | Mariano Zabaleta | 6-4 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 (200 vs 31). ATP, WTA & Challenger.