Artem Smirnov defeated Mikhail Biryukov 6-1 6-1 in the Russia F5 round of 16 on clay. The upset overturned the form book — Mikhail Biryukov came in leading the head-to-head 2–0. Artem Smirnov claimed a first win over Mikhail Biryukov in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-10-03 | Turkey F26 | R16 | hard | Mikhail Biryukov | 6-4 6-4 |
| 2009-08-10 | Russia F4 | R32 | clay | Mikhail Biryukov | 4-6 6-1 6-4 |
Averages over each player's completed matches in the selected window (136 vs 4). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About