Alexandar Lazarov defeated Peter Kobelt 6-3 2-6 6-3 in the M15 Heraklion 9 round of 16 on hard. The upset overturned the form book — Peter Kobelt came in leading the head-to-head 1–0. Alexandar Lazarov claimed a first win over Peter Kobelt in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-12-11 | M15 Heraklion 10 | R32 | hard | Peter Kobelt | 7-6(2) 3-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.