Gianni Ross defeated Svyatoslav Gulin 6-3 7-5 in the M25 Sabadell 1 round of 16 on clay. The upset overturned the form book — Svyatoslav Gulin came in leading the head-to-head 1–0. Gianni Ross claimed a first win over Svyatoslav Gulin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-05-09 | M25 Valldoreix 1 | Q16 | clay | Svyatoslav Gulin | 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.