Sergei Krotiouk defeated Vladimir Voltchkov 7-6 7-6 in the Russia F1 round of 32 on hard. The upset overturned the form book — Vladimir Voltchkov came in leading the head-to-head 1–0. Sergei Krotiouk claimed a first win over Vladimir Voltchkov in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-05-01 | Uzbekistan F2 | R32 | hard | Vladimir Voltchkov | 6-1 7-6(5) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.