Sergei Pogosian defeated Erik Arutiunian 6-4 3-6 6-1 in the M15 Kazan 1 round of 32 on hard. The upset overturned the form book — Erik Arutiunian came in leading the head-to-head 1–0. Sergei Pogosian claimed a first win over Erik Arutiunian in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-09-05 | M15 Pirot 1 | R32 | clay | Erik Arutiunian | 2-6 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.