Marcelo Zormann Da Silva defeated Rafael Matos 3-6 7-6 6-0 in the Brazil F12 semi-final on clay. The upset overturned the form book — Rafael Matos came in leading the head-to-head 1–0. Marcelo Zormann Da Silva claimed a first win over Rafael Matos in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-11-27 | Brazil F4 | R32 | clay | Rafael Matos | 6-1 7-5 |