2013 Arimex Challenger Trophy – Singles

Andrey Kuznetsov was the defending champion, but lost to finalist Adrian Ungur in the quarterfinals, who lost to Julian Reister in the final.

Seeds

 * 1) 🇷🇺 Andrey Kuznetsov (quarterfinals)
 * 2) 🇨🇿 Jan Hájek (quarterfinals, retired)
 * 3) 🇸🇮 Aljaž Bedene (semifinals, retired)
 * 4) 🇩🇪 Julian Reister (champion)
 * 5)  Adrian Ungur (final)
 * 6) 🇸🇰 Andrej Martin (first round)
 * 7) 🇫🇷 Stéphane Robert (semifinals)
 * 8) 🇷🇸 Dušan Lajović (second round)