Alexander Petrov defeated Ezekiel Clark 5-7 6-2 6-0 in the M25 Champaign 1 round of 32 on hard. The upset overturned the form book — Ezekiel Clark came in ranked #1364, leading the head-to-head 2–0, but Alexander Petrov had been the form player, winning 6 of their last 10 on hard. Alexander Petrov claimed a first win over Ezekiel Clark in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-09-15 | M15 Champaign 1 | QF | hard | Ezekiel Clark | 6-7(4) 5-2 |
| 2022-07-20 | M25 Champaign 1 | R32 | hard | Ezekiel Clark | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.