Andrea Gaudenzi defeated Mariano Zabaleta 6-7 7-6 6-3 in the Gstaad round of 16 on clay. The upset overturned the form book — Mariano Zabaleta came in leading the head-to-head 1–0. Andrea Gaudenzi claimed a first win over Mariano Zabaleta in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-05-14 | Hamburg | Q32 | clay | Mariano Zabaleta | 6-0 7-5 |
Averages over each player's completed matches in the selected window (132 vs 200). 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