2018 Marburg Open – Singles
| Singles | |
|---|---|
| 2018 Marburg Open | |
| Champion | Juan Ignacio Londero |
| Runner-up | Hugo Dellien |
| Score | 3–6, 7–5, 6–4 |
Filip Krajinović was the defending champion but chose not to defend his title.
Juan Ignacio Londero won the title after defeating Hugo Dellien 3–6, 7–5, 6–4 in the final.