Sebastien Grosjean defeated Mariano Zabaleta 6-3 6-1 in the St. Petersburg round of 16 on carpet. The upset overturned the form book — Mariano Zabaleta came in leading the head-to-head 2–0. Sebastien Grosjean claimed a first win over Mariano Zabaleta in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-08-27 | US Open | R128 | hard | Mariano Zabaleta | 6-4 6-3 6-4 |
| 1999-04-12 | Barcelona | R64 | clay | Mariano Zabaleta | 6-7(6) 7-6(5) 6-1 |
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.