2015 MercedesCup – Singles

Roberto Bautista Agut was the defending champion, but chose to defend his title in s'Hertogenbosch instead. Rafael Nadal won the title, defeating Viktor Troicki in the final, 7–6(7–3), 6–3.

Seeds
The top four seeds receive a bye into the second round. • #🇪🇸 Rafael Nadal (champion)

• # Marin Čilić (semifinals)

• #🇪🇸 Feliciano López (second round)

• #🇫🇷 Gaël Monfils (semifinals)

• #🇦🇺 Bernard Tomic (quarterfinals)

• #🇩🇪 Philipp Kohlschreiber (quarterfinals)

• #🇦🇹 Dominic Thiem (first round)

• #🇷🇸 Viktor Troicki (final)

Seeds
• # 🇷🇸 Filip Krajinović (qualifying competition)

• # 🇩🇪 Dustin Brown (qualified)

• # 🇨🇴 Alejandro Falla (second round)

• # 🇩🇪 Matthias Bachinger (qualifying competition, lucky loser)

• # 🇺🇿 Farrukh Dustov (first round)

• # 🇵🇱 Michał Przysiężny (second round)

• # 🇩🇪 Peter Gojowczyk (qualified)

• # 🇩🇪 Michael Berrer (qualifying competition)

Qualifiers
• # 🇩🇪 Peter Gojowczyk

• # 🇩🇪 Dustin Brown

• # Mate Pavić

• # 🇩🇪 Mischa Zverev

Lucky losers

 * 1) 🇩🇪 Matthias Bachinger