2011 Košice Open – Singles
Rubén Ramírez Hidalgo was the defending champion; however, he lost to Evgeny Donskoy in the second round. Simon Greul won the final against Victor Crivoi 6–2, 6–1. Seeds

Draw

Finals

Top half

Bottom half

References
Main Draw
Qualifying Singles

2011 ATP Challenger Tour
2011 Singles