Benedikt Emesz defeated J. Kupcic 4-6 6-4 10-8 in the M25 Opatija 1 q64 on clay. The upset overturned the form book — J. Kupcic came in leading the head-to-head 1–0, but Benedikt Emesz had been the form player, winning 2 of their last 4 on clay. Benedikt Emesz claimed a first win over J. Kupcic in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-05-16 | M15 Sibenik 2 | Q64 | clay | J. Kupcic | 6-1 4-6 10-6 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.