Alex Knaff defeated Raphael Calzi 6-2 6-1 in the M25 Arlon 1 round of 16 on clay. The result followed the form book — Alex Knaff came in leading the head-to-head 1–0. Alex Knaff extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-09-05 | M15 Hong Kong 3 | R16 | hard | Alex Knaff | 6-2 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.