Ivan Sergeyev defeated Alexander Yarmola 7-5 7-5 in the Russia F2 round of 32 on hard. The upset overturned the form book — Alexander Yarmola came in leading the head-to-head 2–0. Ivan Sergeyev claimed a first win over Alexander Yarmola in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-04-10 | Uzbekistan F1 | R16 | hard | Alexander Yarmola | 6-4 3-6 6-3 |
| 2005-10-10 | Ukraine F3 | R16 | clay | Alexander Yarmola | 1-6 7-5 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.