Adrian Boitan defeated Ezekiel Clark 6-1 5-7 6-4 in the M25 Harlingen 1 round of 16 on hard. The result followed the form book — Adrian Boitan came in leading the head-to-head 1–0. Adrian Boitan extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-11-02 | M15 Fayetteville 2 | R32 | hard | Adrian Boitan | 6-4 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.