Nicolas Kiefer defeated Gaston Gaudio 6-2 6-3 in the Dusseldorf round robin on clay. Nicolas Kiefer extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-04-11 | Monte Carlo Masters | R32 | clay | Gaston Gaudio | 7-5 5-2 RET |
| 2005-03-07 | Indian Wells Masters | R32 | hard | Nicolas Kiefer | 6-3 6-1 |
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 (123 vs 75). ATP, WTA & Challenger.