Markos Kalovelonis defeated Alexandros Jakupovic 6-4 4-6 6-3 in the Greece F18 round of 32 on hard. The upset overturned the form book — Alexandros Jakupovic came in leading the head-to-head 1–0. Markos Kalovelonis claimed a first win over Alexandros Jakupovic in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-09-09 | Greece F10 | SF | hard | Alexandros Jakupovic | 6-3 5-7 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.