Edi Steficar defeated Daniel Kopeinigg 6-4 6-3 in the Croatia F15 qualifying round of 32 on clay. The upset overturned the form book — Daniel Kopeinigg came in leading the head-to-head 1–0. Edi Steficar claimed a first win over Daniel Kopeinigg in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-08-26 | Croatia F9 | Q64 | clay | Daniel Kopeinigg | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.