Lukas Mugevicius defeated Oleksander Byelinskyy 6-4 6-2 in the Ukraine F4 qualifying round on clay. The upset overturned the form book — Oleksander Byelinskyy came in leading the head-to-head 2–0. Lukas Mugevicius claimed a first win over Oleksander Byelinskyy in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-08-01 | Georgia F2 | F | clay | Oleksander Byelinskyy | 6-4 6-2 |
| 2016-01-18 | Egypt F1 | R32 | hard | Oleksander Byelinskyy | 6-4 7-6(5) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.