Alexander Cozbinov defeated Illya Beloborodko 6-4 6-3 in the M15 St. Petersburg 1 q32 on hard. The upset overturned the form book — Illya Beloborodko came in leading the head-to-head 1–0. Alexander Cozbinov claimed a first win over Illya Beloborodko in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-03-30 | M15 Sharm ElSheikh 9 | R16 | hard | Illya Beloborodko | 7-6(4) 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.