Paul Henri Mathieu defeated Nicolas Kiefer 6-3 7-5 in the Beijing Olympics round of 16 on hard. The upset overturned the form book — Nicolas Kiefer came in leading the head-to-head 3–1, but Paul Henri Mathieu had been the form player, winning 2 of their last 4 on hard. Paul Henri Mathieu narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-05-11 | Hamburg Masters | R64 | clay | Nicolas Kiefer | 6-4 6-4 |
| 2007-09-24 | Mumbai | R32 | hard | Nicolas Kiefer | 6-4 6-3 |
| 2006-03-06 | Indian Wells Masters | R64 | hard | Paul Henri Mathieu | 7-6(5) 4-6 6-2 |
| 2003-08-18 | Long Island | R32 | hard | Nicolas Kiefer | 4-6 7-6(4) 6-3 |
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 69). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About