Paul Henri Mathieu defeated Sebastien Grosjean 6-7 7-6 6-3 6-2 in the US Open round of 128 on hard. The upset overturned the form book — Sebastien Grosjean came in leading the head-to-head 2–1, defending last year's round of 32. Paul Henri Mathieu narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-10-08 | Moscow | R32 | hard | Paul Henri Mathieu | 6-2 6-2 |
| 2006-10-23 | Lyon | R32 | clay | Sebastien Grosjean | 6-3 7-6(3) |
| 2006-01-16 | Australian Open | R16 | hard | Sebastien Grosjean | 7-5 6-2 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 30). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About