| Singles | |
|---|---|
| 2018 Koblenz Open | |
| Champion |
|
| Runner-up |
|
| Final score | 6–2, 6–1 |
Ruben Bemelmans was the defending champion but withdrew as he qualified for the 2018 Australian Open.
Mats Moraing won the title after defeating Kenny de Schepper 6–2, 6–1 in the final.