Julian Contzen defeated Domingos Sousa Coutinho 6-4 6-2 in the Portugal F6 qualifying round of 64 on hard. The upset overturned the form book — Domingos Sousa Coutinho came in leading the head-to-head 1–0. Julian Contzen claimed a first win over Domingos Sousa Coutinho in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-08-17 | Spain F26 | Q32 | clay | Domingos Sousa Coutinho | 6-2 6-4 |