Arthur De Greef defeated Guilherme Clezar 4-6 6-2 6-3 in the Guayaquil CH round of 16 on clay. The upset overturned the form book — Guilherme Clezar came in leading the head-to-head 1–0, defending last year's round of 32, but Arthur De Greef had been the form player, winning 2 of their last 8 on clay. Arthur De Greef claimed a first win over Guilherme Clezar in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-02-27 | Sao Paulo | Q2 | clay | Guilherme Clezar | 7-5 6-0 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About