Ivan Denisov defeated Petr Bar Biryukov 6-4 2-6 6-3 in the M15 Ust-Kamenogorsk 2 round of 16 on hard. The upset overturned the form book — Petr Bar Biryukov came in ranked #288, leading the head-to-head 1–0, but Ivan Denisov had been the form player, winning 2 of their last 5 on hard. Ivan Denisov claimed a first win over Petr Bar Biryukov in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-02-28 | M15 Aktobe 1 | Q16 | hard | Petr Bar Biryukov | 6-3 6-4 |
Averages over each player's completed matches in the selected window (48 vs 167). ATP, WTA & Challenger.
Bar Biryukov P.: 4 days rest · 1 match, 34 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About