Nicolas Kiefer defeated Vladimir Voltchkov 6-2 6-4 in the Athens Olympics round of 64 on hard. The upset overturned the form book — Vladimir Voltchkov came in leading the head-to-head 2–0. Nicolas Kiefer claimed a first win over Vladimir Voltchkov in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2002-10-21 | St. Petersburg | QF | carpet | Vladimir Voltchkov | 7-5 7-5 |
| 2001-01-01 | Doha | QF | hard | Vladimir Voltchkov | 6-2 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 (200 vs 8). ATP, WTA & Challenger.