Paul Henri Mathieu defeated Lleyton Hewitt 6-3 6-4 5-7 4-6 6-1 in the US Open round of 128 on hard. The upset overturned the form book — Lleyton Hewitt came in leading the head-to-head 4–0, defending last year's round of 32. Paul Henri Mathieu claimed a first win over Lleyton Hewitt in five meetings, narrowing the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-06-12 | London | R16 | carpet | Lleyton Hewitt | 6-4 6-4 |
| 2008-06-09 | Queen's Club | R16 | grass | Lleyton Hewitt | 6-4 6-4 |
| 2005-03-07 | Indian Wells Masters | R16 | hard | Lleyton Hewitt | 6-1 6-0 |
| 2001-05-28 | Roland Garros | R128 | clay | Lleyton Hewitt | 7-6 4-6 6-3 6-2 |
Averages over each player's completed matches in the selected window (200 vs 161). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About