Lukas Finzelberg defeated Jonas Luetjen 6-4 6-4 in the Germany F13 round of 16 on clay. The upset overturned the form book — Jonas Luetjen came in leading the head-to-head 1–0, but Lukas Finzelberg had been the form player, winning 3 of their last 6 on clay. Lukas Finzelberg claimed a first win over Jonas Luetjen in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-08-19 | Germany F15 | QF | clay | Jonas Luetjen | 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.