| Singles | |
|---|---|
| 2015 Tiburon Challenger | |
| Champion |  Tim Smyczek |
| Runner-up | Denis Kudla |
| Score | 1–6, 6–1, 7–6(9–7) |
Sam Querrey was the defending champion, but chose not to compete this year.
| Singles | |
|---|---|
| 2015 Tiburon Challenger | |
| Champion | Tim Smyczek |
| Runner-up | Denis Kudla |
| Score | 1–6, 6–1, 7–6(9–7) |
Sam Querrey was the defending champion, but chose not to compete this year.
Denis Kudla (final)
Kyle Edmund (first round) Tim Smyczek (champion)
Dustin Brown (first round) Ryan Harrison (second round) Bjorn Fratangelo (quarterfinals, retired)
Blaž Rola (quarterfinals) Jared Donaldson (second round)| Semifinals | Final | ||||||||||||
| 1 | Denis Kudla | 6 | 1 | 6 | |||||||||
| WC | Mackenzie McDonald | 2 | 6 | 4 | |||||||||
| 1 | Denis Kudla | 6 | 1 | 67 | |||||||||
| 3 | Tim Smyczek | 1 | 6 | 79 | |||||||||
| 3 | Tim Smyczek | 6 | 6 | ||||||||||
 Quentin Halys | 3 | 1 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | D Kudla | 4 | 77 | 6 | |||||||||||||||||||||||
| Connor Smith | 6 | 62 | 0 | 1 | D Kudla | 2 | 6 | 6 | |||||||||||||||||||
| Q |  H Laaksonen | 6 | 6 | Q | H Laaksonen | 6 | 4 | 3 | |||||||||||||||||||
| WC |  A Göransson | 2 | 4 | 1 | D Kudla | 6 | 6 | ||||||||||||||||||||
| PR |  P Polansky | 4 | 3 | 7 | B Rola | 4 | 3 | ||||||||||||||||||||
| Alt |  D Kutrovsky | 6 | 6 | Alt | D Kutrovsky | 3 | 1 | ||||||||||||||||||||
| F Tiafoe | 77 | 66 | 3 | 7 | B Rola | 6 | 6 | ||||||||||||||||||||
| 7 | B Rola | 60 | 78 | 6 | 1 | D Kudla | 6 | 1 | 6 | ||||||||||||||||||
| 4 | D Brown | 2 | 5 | WC | M McDonald | 2 | 6 | 4 | |||||||||||||||||||
| Q | S Bangoura | 6 | 7 | Q | S Bangoura | 3 | 6 | 63 | |||||||||||||||||||
| WC | M McDonald | 6 | 6 | WC | M McDonald | 6 | 3 | 77 | |||||||||||||||||||
 F Nielsen | 4 | 4 | WC | M McDonald | 4 | ||||||||||||||||||||||
| SE | A Kuznetsov | 77 | 6 | 6 | B Fratangelo | 0r | |||||||||||||||||||||
| Q | N Meister | 64 | 3 | SE | A Kuznetsov | 65 | 6 | 3 | |||||||||||||||||||
| WC | C Buchanan | 1 | 3 | 6 | B Fratangelo | 77 | 3 | 6 | |||||||||||||||||||
| 6 | B Fratangelo | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | R Harrison | 6 | 6 | ||||||||||||||||||||||||
| WC | D Baughman | 3 | 3 | 5 | R Harrison | 64 | 6 | 3 | |||||||||||||||||||
| D Novikov | 4 | 3 |  M Michalička | 77 | 4 | 6 | |||||||||||||||||||||
| M Michalička | 6 | 6 | M Michalička | 3 | 1 | ||||||||||||||||||||||
| Q | Dennis Nevolo | 7 | 77 | 3 | T Smyczek | 6 | 6 | ||||||||||||||||||||
| A Bossel | 5 | 65 | Q | D Nevolo | 2 | 6 | 1 | ||||||||||||||||||||
 J McGee | 65 | 4 | 3 | T Smyczek | 6 | 3 | 6 | ||||||||||||||||||||
| 3 | T Smyczek | 77 | 6 | 3 | T Smyczek | 6 | 6 | ||||||||||||||||||||
| 8 | J Donaldson | 6 | 6 | Q Halys | 3 | 1 | |||||||||||||||||||||
 D King | 1 | 4 | 8 | J Donaldson | 3 | 63 | |||||||||||||||||||||
| M Krueger | 6 | 65 | 6 | M Krueger | 6 | 77 | |||||||||||||||||||||
| P Bester | 4 | 77 | 1 | M Krueger | 4 | 3 | |||||||||||||||||||||
| Q Halys | 6 | 6 | Q Halys | 6 | 6 | ||||||||||||||||||||||
| T Sandgren | 3 | 1 | Q Halys | 77 | 6 | ||||||||||||||||||||||
| B Klein | 6 | 6 | B Klein | 62 | 3 | ||||||||||||||||||||||
| 2 | K Edmund | 4 | 1 | ||||||||||||||||||||||||
Ana Ivanovic was the defending champion, but lost in the second round to Yan Zi.
James Blake was the defending champion, but lost in the quarterfinals to Sam Querrey.
Second-seeded Tommy Robredo was the defending champion, but first-seeded Nikolay Davydenko defeated him 6–3, 6–3, in the final.
Meghann Shaughnessy was the defending champion, but chose not to participate that year.
Serena Williams was the defending champion, but was forced to withdraw due to a left knee injury.
Sofia Arvidsson was the defending champion, but lost in the quarterfinals to Meilen Tu.
Justine Henin was the defending champion, but retired from the sport on May 14, 2008.
David Ferrer was the defending champion, but lost in the quarterfinals to Iván Navarro.
Juan Martín del Potro was the defending champion, but chose not to participate that year.
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