Rafael Matos defeated Nicolas Santos 1-6 6-3 6-3 in the Brazil F2 semi-final on clay. The upset overturned the form book — Nicolas Santos came in leading the head-to-head 1–0, but Rafael Matos had been the form player, winning 8 of their last 10 on clay. Rafael Matos claimed a first win over Nicolas Santos in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-06-12 | Argentina F2 | R32 | clay | Nicolas Santos | 6-4 7-6(3) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.