Gabriel Donev defeated Denys Klok 6-0 6-0 in the M25 Pazardzhik 2 round of 32 on clay. The upset overturned the form book — Denys Klok came in leading the head-to-head 2–0, but Gabriel Donev had been the form player, winning 4 of their last 10 on clay. Gabriel Donev claimed a first win over Denys Klok in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-07-04 | M15 Sofia 1 | R32 | clay | Denys Klok | 7-5 6-1 |
| 2023-05-20 | M15 Pazardzhik 1 | QF | clay | Denys Klok | 7-6(5) 7-5 |
Averages over each player's completed matches in the selected window (1 vs 16). 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. Small sample — read as indicative. About