Marcelo Zormann defeated Jose Pereira 6-4 6-3 in the M25 Poznan 1 q16 on clay. The upset overturned the form book — Jose Pereira came in leading the head-to-head 1–0, but Marcelo Zormann had been the form player, winning 7 of their last 10 on clay. Marcelo Zormann claimed a first win over Jose Pereira in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-09-24 | M15 Recife 1 | QF | clay | Jose Pereira | 7-6(1) 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.