Karlo Kajin defeated A. Jeran 6-3 7-5 in the M15 Porec 1 q64 on clay. The upset overturned the form book — A. Jeran came in ranked #1004, leading the head-to-head 1–0. Karlo Kajin claimed a first win over A. Jeran in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-08-19 | M25 Maribor 1 | Q16 | clay | A. Jeran | 6-7(5) 6-2 10-8 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.