Lorenzo Vatteroni defeated A. Jeran 6-2 3-6 10-8 in the M15 Porec 1 q32 on clay. The upset overturned the form book — A. Jeran came in leading the head-to-head 1–0. Lorenzo Vatteroni claimed a first win over A. Jeran in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-03-12 | M15 Rovinj 1 | Q64 | clay | A. Jeran | 6-2 4-6 11-9 |