Christopher Heyman defeated Nicolae Frunza 6-4 0-6 6-0 in the Turkey F6 qualifying round on hard. The result followed the form book — Christopher Heyman came in leading the head-to-head 2–0. Christopher Heyman extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-04-24 | M15 Antalya 16 | SF | clay | Christopher Heyman | 6-3 6-3 |
| 2019-04-02 | M25 Santa Margherita Di Pula 2 | R32 | clay | Christopher Heyman | 7-6(2) 4-6 6-4 |
Averages over each player's completed matches in the selected window (200 vs 117). 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