Carlos Moya defeated Nicolas Kiefer 6-4 7-6 in the Vienna quarter-final on hard. The upset overturned the form book — Nicolas Kiefer came in leading the head-to-head 3–1, defending last year's round of 16. Carlos Moya narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-07-26 | Canada Masters | R16 | hard | Nicolas Kiefer | 6-4 2-6 6-4 |
| 2001-04-30 | Mallorca | QF | grass | Carlos Moya | 6-4 6-2 |
| 1999-01-18 | Australian Open | R128 | hard | Nicolas Kiefer | 6-7(7) 6-4 7-6(6) 6-3 |
| 1998-05-18 | Dusseldorf | RR | clay | Nicolas Kiefer | 6-1 6-4 |
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 200). ATP, WTA & Challenger.