2014 Heineken Open – Singles

David Ferrer was the three-time defending champion, but lost in the semifinals to Lu Yen-hsun.

John Isner won the title, defeating Lu in the final, 7–6(7–4), 7–6(9–7). It was the 8th career title for Isner, the 2nd in Auckland having previously won in 2010, and only his 2nd outside the United States.

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

• 🇩🇪 Tommy Haas (second round)

• 🇺🇸 John Isner (champion)

• Kevin Anderson (second round)

• 🇩🇪 Philipp Kohlschreiber (quarterfinals)

• 🇫🇷 Benoît Paire (second round)

• 🇫🇷 Gaël Monfils (withdrew due to fatigue)

• Robin Haase (first round)

• 🇩🇪 Daniel Brands (first round)

Seeds
All seeds receive a bye into the second round.

🇪🇸 Daniel Gimeno Traver (qualified) 🇸🇰 Lukáš Lacko (qualified) 🇺🇸 Donald Young (qualified) 🇺🇸 Bradley Klahn (qualified) 🇺🇸 Steve Johnson (qualifying competition, lucky loser) 🇯🇵 Hiroki Kondo (second round) 🇳🇿 José Statham (Received wildcard into main draw) 🇳🇿 Michael Venus (qualifying competition)

Qualifiers
• # 🇪🇸 Daniel Gimeno Traver

• # 🇸🇰 Lukáš Lacko

• # 🇺🇸 Donald Young

• # 🇺🇸 Bradley Klahn

Lucky loser

 * 1) 🇺🇸 Steve Johnson