Mihailo Popovic defeated Domagoj Biljesko 6-1 6-2 in the M15 Zlatibor 1 q16 on clay. The upset overturned the form book — Domagoj Biljesko came in leading the head-to-head 1–0. Mihailo Popovic claimed a first win over Domagoj Biljesko in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-08-12 | M15 Novi Sad 3 | Q32 | clay | Domagoj Biljesko | 4-6 6-3 10-6 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.