Igor Andreev defeated Martin Vassallo Arguello 1-6 7-5 5-7 6-3 6-4 in the Roland Garros round of 64 on clay. The upset overturned the form book — Martin Vassallo Arguello came in leading the head-to-head 1–0, defending last year's round of 64. Igor Andreev claimed a first win over Martin Vassallo Arguello in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-04-12 | Monte Carlo Masters | R64 | clay | Martin Vassallo Arguello | 2-6 7-6(5) 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 (162 vs 43). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About