2015 Comerica Bank Challenger

The 2015 Comerica Bank Challenger was a professional tennis tournament played on hard courts. It was the 28th edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place in Aptos, California, United States between 10 and 16 August 2015.

Seeds

 * 1 Rankings are as of August 3, 2015.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇺🇸 Jared Donaldson
 * 🇺🇸 Taylor Harry Fritz
 * 🇩🇪 Tommy Haas
 * 🇺🇸 Mitchell Krueger

The following players entered into the singles main draw as alternates:
 * 🇺🇸 Dennis Novikov
 * 🇺🇸 Alexander Sarkissian

The following players received entry from the qualifying draw:
 * 🇺🇸 Daniel Nguyen
 * 🇺🇸 Tennys Sandgren
 * 🇨🇳 Zhang Ze
 * 🇩🇪 Mischa Zverev

The following players received entry as a lucky loser:
 * 🇯🇵 Takuto Niki

Singles

 * 🇦🇺 John Millman def. 🇺🇸 Austin Krajicek, 7–5, 2–6, 6–3

Doubles

 * 🇦🇺 Chris Guccione / 🇳🇿 Artem Sitak def. 🇮🇳 Yuki Bhambri / 🇦🇺 Matthew Ebden, 6–4, 7–6(7–2)