2015 Heineken Open – Singles

John Isner was the defending champion, but withdrew to concentrate on preparing for the Australian Open. Jiří Veselý won the title, defeating Adrian Mannarino in the final, 6–3, 6–2.

Seeds
The top four seeds receive a bye into the second round. • 🇪🇸 David Ferrer (withdrew)

• Ernests Gulbis (second round)

• 🇪🇸 Roberto Bautista Agut (second round, retired because of illness)

• Kevin Anderson (semifinals)

• 🇪🇸 Tommy Robredo (withdrew because of an adductor injury)

• 🇨🇴 Santiago Giraldo (first round)

• 🇪🇸 Guillermo García López (first round)

• 🇺🇸 Steve Johnson (quarterfinals)

• Lu Yen-hsun (second round)

Seeds
The top seven seeds receive a bye into the second round. • 🇨🇿 Jiří Veselý (qualified)

• Blaž Rola (second round)

• Robin Haase (second round, retired)

• 🇸🇰 Lukáš Lacko (second round)

• 🇯🇵 Go Soeda (qualified)

• 🇦🇷 Máximo González (second round)

• 🇫🇷 Kenny de Schepper (qualified)

• 🇨🇴 Alejandro González (qualified)

Qualifiers
• # 🇨🇿 Jiří Veselý

• # 🇫🇷 Kenny de Schepper

• # 🇯🇵 Go Soeda

• # 🇨🇴 Alejandro González

Lucky losers
• # 🇨🇴 Alejandro Falla

• # 🇫🇷 Lucas Pouille