Yannick Mertens defeated Christopher Heyman 7-6 3-6 6-2 in the Israel F15 semi-final on hard. The result followed the form book — Yannick Mertens came in leading the head-to-head 3–0. Yannick Mertens extended the head-to-head to 4–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-09-22 | M25+H Plaisir 1 | F | hard | Yannick Mertens | 6-3 6-0 |
| 2019-01-17 | M15+H Bressuire 1 | R16 | hard | Yannick Mertens | 6-3 6-0 |
| 2017-02-27 | France F4 | QF | hard | Yannick Mertens | 6-4 6-4 |
Averages over each player's completed matches in the selected window (184 vs 200). 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