S. D'Agostino defeated Niccolo Catini 7-6 6-3 in the M15 Alaminos 2 round of 16 on clay. S. D'Agostino claimed a first win over Niccolo Catini in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-07-19 | M15 Perugia 1 | Q32 | clay | Niccolo Catini | 6-4 6-7(6) 12-10 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.