Yannick Mertens defeated Tiago Cacao 6-3 6-7 7-6 in the M15 Sintra 2 quarter-final on hard. Yannick Mertens extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-02-19 | Portugal F1 | SF | hard | Tiago Cacao | 6-3 4-6 6-4 |
| 2016-09-26 | Portugal F11 | QF | hard | Yannick Mertens | 6-3 7-6(4) |
Averages over each player's completed matches in the selected window (26 vs 38). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About