# 2012 Tiburon Challenger – Singles

Ivo Karlović was the defending champion but decided not to participate. Jack Sock won the final against Mischa Zverev 6–1, 1–6, 7–6$^{(7–3)}$.

## Seeds

* Benjamin Becker (second round, withdrew due to abductor pain)
* James Blake (quarterfinals)
* Ryan Sweeting (first round)
* Wayne Odesnik (first round)
* Matteo Viola (first round)
* Tim Smyczek (first round)
* Denis Kudla (quarterfinals)
* Bobby Reynolds (semifinals)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| | Jack Sock | 6 | 7$^7$ | | | | |
| | Steve Johnson | 4 | 6$^4$ | | | | |
| | Steve Johnson | 4 | 6$^4$ | Jack Sock | 6 | 1 | 7$^7$ |
| | | | | Mischa Zverev | 1 | 6 | 6$^3$ |
| 8 | Bobby Reynolds | 4 | 3 | Mischa Zverev | 1 | 6 | 6$^3$ |
| | Mischa Zverev | 6 | 6 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals |
| 1 | B Becker | 7$^7$ | 2 | 6 | | | | | | | | | | | | | |
| Q | N Meister | 6$^4$ | 6 | 1 | 1 | B Becker | | | | | | | | | | | |
| Alt | T Sandgren | 0 | 4 | | | J Sock | w/o | | | | | | | | | | |
| | J Sock | 6 | 6 | | | | | | | | J Sock | 7$^7$ | 3 | 6 | | | |
| | M Yani | 3 | 4 | | | | | | | | R Williams | 6$^5$ | 6 | 1 | | | |
| | R Williams | 6 | 6 | | | R Williams | 6 | 6 | | | | | | | | | |
| | I van der Merwe | 6 | 6 | | | I van der Merwe | 2 | 3 | | | | | | | | | |
| 5 | M Viola | 3 | 4 | | | | | | | | | | | | J Sock | 6 | 7$^7$ |
| 3 | R Sweeting | 1 | 2 | | | | | | | | | | | | S Johnson | 4 | 6$^4$ |
| | R Farah | 6 | 6 | | | R Farah | 3 | 3 | | | | | | | | | |
| | S Bubka | 6$^4$ | 4 | | | S Johnson | 6 | 6 | | | | | | | | | |
| | S Johnson | 7$^7$ | 6 | | | | | | | | S Johnson | 6 | 6 | | | | |
| WC | D Nguyen | 1 | 4 | | | | | | | 7 | D Kudla | 1 | 2 | | | | |
| Q | C Guccione | 6 | 6 | | Q | C Guccione | 4 | 7$^8$ | 6$^4$ | | | | | | | | |
| Q | F Nielsen | 2 | 6$^5$ | | 7 | D Kudla | 6 | 6$^6$ | 7$^7$ | | | | | | | | |
| 7 | D Kudla | 6 | 7$^7$ | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 8 | B Reynolds | 7 | 6 | | | | | | | | | | | | | | | |
| WC | C Harrison | 5 | 0 | | 8 | B Reynolds | 3 | 6 | 6 | | | | | | | | | |
| | M Reid | 7$^7$ | 6 | | | M Reid | 6 | 1 | 4 | | | | | | | | | |
| | J Millman | 6$^2$ | 4 | | | | | | | 8 | B Reynolds | 6 | 2 | 7$^7$ | | | | |
| WC | B Klahn | 6 | 6 | | | | | | | WC | B Klahn | 4 | 6 | 6$^4$ | | | | |
| | S Groth | 3 | 3 | | WC | B Klahn | 6 | 4 | 7 | | | | | | | | | |
| Q | J Dadamo | 6 | 6 | | Q | J Dadamo | 4 | 6 | 5 | | | | | | | | | |
| 4 | W Odesnik | 4 | 3 | | | | | | | | | | | | 8 | B Reynolds | 4 | 3 |
| 6 | T Smyczek | 4 | 1 | | | | | | | | | | | | | M Zverev | 6 | 6 |
| | R de Voest | 6 | 6 | | | R de Voest | 2 | 3 | | | | | | | | | | |
| WC | M McClune | 6 | 2 | 1 | | M Zverev | 6 | 6 | | | | | | | | | | |
| | M Zverev | 3 | 6 | 6 | | | | | | | M Zverev | 6 | 6 | | | | | |
| | R Borvanov | 0 | 6 | 1 | | | | | | 2 | J Blake | 0 | 2 | | | | | |
| SE | D Kosakowski | 6 | 3 | 6 | SE | D Kosakowski | 2 | 3 | | | | | | | | | | |
| | A Kuznetsov | 4 | 4 | | 2 | J Blake | 6 | 6 | | | | | | | | | | |
| 2 | J Blake | 6 | 6 | | | | | | | | | | | | | | | |