Yan Sabanin defeated Denys Klok 6-2 5-7 6-3 in the Kazakhstan F2 round of 32 on hard. The upset overturned the form book — Denys Klok came in leading the head-to-head 1–0. Yan Sabanin claimed a first win over Denys Klok in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-06-03 | M25 Karlsruhe 1 | Q32 | clay | Denys Klok | 7-5 7-6(1) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.