Clement Geens defeated Christopher Heyman 6-7 7-6 6-1 in the Belgium F7 round of 32 on clay. The upset overturned the form book — Christopher Heyman came in leading the head-to-head 3–1, but Clement Geens had been the form player, winning 3 of their last 4 on clay. Clement Geens narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-06-26 | Belgium F2 | R16 | clay | Christopher Heyman | 6-1 6-4 |
| 2017-06-19 | Belgium F1 | SF | clay | Christopher Heyman | 6-7(4) 6-4 6-0 |
| 2015-08-17 | Belgium F11 | F | clay | Clement Geens | 6-3 6-4 |
| 2015-07-27 | Germany F9 | SF | clay | Christopher Heyman | 6-3 6-3 |
Averages over each player's completed matches in the selected window (149 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