Stan Wawrinka defeated Nicolas Massu 6-7 6-2 6-2 6-4 in the Roland Garros round of 128 on clay. The upset overturned the form book — Nicolas Massu came in defending last year's round of 32. Stan Wawrinka extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-05-25 | Roland Garros | R64 | clay | Stan Wawrinka | 6-1 6-1 6-2 |
| 2005-08-29 | US Open | R32 | hard | Nicolas Massu | 6-4 6-3 6-0 |
Averages over each player's completed matches in the selected window (198 vs 179). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Wawrinka S.: 4 days rest · 2 matches, 45 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the clay field, opponent-adjusted over 52 weeks). About