title: 2012 Comerica Bank Challenger – Singles
text: # 2012 Comerica Bank Challenger – Singles
  
  Laurynas Grigelis, the defending champion, didn't participate this year. Steve Johnson won the title, defeating Robert Farah 6–3, 6–3 in the final.
  
  ## Seeds
  
  * Brian Baker (first round)
  * Igor Andreev (first round)
  * Rajeev Ram (first round)
  * Igor Sijsling (withdrew due to gastroenteritis)
  * Tobias Kamke (first round)
  * Florent Serra (second round)
  * Izak van der Merwe (first round)
  * Denis Kudla (first round)
  
  ## 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 | Semifinals | Final | Final | Final | Final |
  | - | - | - | - | - | - | - | - | - |
  | | Jan Hernych | 3 | 4 | | | | | |
  | WC | Steve Johnson | 6 | 6 | | | | | |
  | WC | Steve Johnson | 6 | 6 | | WC | Steve Johnson | 6 | 6 |
  | | | | | | | Robert Farah | 3 | 3 |
  | Q | Ilija Bozoljac | 6 | 2 | 4 | | Robert Farah | 3 | 3 |
  | | Robert Farah | 4 | 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 | Semifinals | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 1/WC | B Baker | 7 | 4 | 2 | | | | | | | | | | | | | |
  | | M Authom | 5 | 6 | 6 | | M Authom | 4 | 6 | 1 | | | | | | | | |
  | | M Copil | 3 | 6 | 3 | | J Wang | 6 | 4 | 6 | | | | | | | | |
  | | J Wang | 6 | 2 | 6 | | | | | | | J Wang | 3 | $6^5$ | | | | |
  | | F Romboli | 4 | 4 | | | | | | | | J Hernych | 6 | $7^7$ | | | | |
  | | J Hernych | 6 | 6 | | | J Hernych | 7 | 6 | | | | | | | | | |
  | SE | S Bubka | 6 | $7^7$ | | | S Bubka | 5 | 3 | | | | | | | | | |
  | 5 | T Kamke | 3 | $6^3$ | | | | | | | | | | | | J Hernych | 3 | 4 |
  | 3 | R Ram | 3 | 4 | | | | | | | | | | | WC | S Johnson | 6 | 6 |
  | Q | D Tursunov | 6 | 6 | | Q | D Tursunov | 4 | r | | | | | | | | | |
  | | C Salamanca | 3 | 5 | | WC | S Johnson | 6 | | | | | | | | | | |
  | WC | S Johnson | 6 | 7 | | | | | | | WC | S Johnson | 6 | 6 | | | | |
  | | M Yani | 3 | 1 | | | | | | | | R de Voest | 3 | 4 | | | | |
  | Q | J Dadamo | 6 | 6 | | Q | J Dadamo | 2 | 7 | 3 | | | | | | | | |
  | | R de Voest | 6 | 6 | | | R de Voest | 6 | 5 | 6 | | | | | | | | |
  | 8 | D Kudla | 2 | 2 | | | | | | | | | | | | | | |
  
  ### Bottom half
  
  | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 6 | F Serra | 6 | 3 | 6 | | | | | | | | | | | | | |
  | | G Pella | 3 | 6 | 2 | 6 | F Serra | 3 | 4 | | | | | | | | | |
  | | M Zverev | 5 | 6 | 1 | Q | I Bozoljac | 6 | 6 | | | | | | | | | |
  | Q | I Bozoljac | 7 | 4 | 6 | | | | | Q | I Bozoljac | $7^7$ | 6 | | | | | |
  | | J Baker | 3 | 1 | | | | | | LL | M McClune | $6^4$ | 2 | | | | | |
  | WC | R Ginepri | 6 | 6 | | WC | R Ginepri | 1 | $6^4$ | | | | | | | | | |
  | | A Kuznetsov | 4 | 6 | $6^2$ | LL | M McClune | 6 | $7^7$ | | | | | | | | | |
  | LL | M McClune | 6 | 2 | $7^7$ | | | | | | | | | Q | I Bozoljac | 6 | 2 | 4 |
  | 7 | I van der Merwe | 4 | $6^1$ | | | | | | | | | | | R Farah | 4 | 6 | 6 |
  | | A Weintraub | 6 | $7^7$ | | | A Weintraub | $6^2$ | 3 | | | | | | | | | |
  | | R Farah | 4 | 6 | 6 | | R Farah | $7^7$ | 6 | | | | | | | | | |
  | | R Borvanov | 6 | 4 | 2 | | | | | | R Farah | 6 | 7 | | | | | |
  | | T-h Yang | 5 | 6 | $6^3$ | | | | | WC | B Klahn | 4 | 5 | | | | | |
  | Q | M Reid | 7 | 0 | $7^7$ | Q | M Reid | 5 | 4 | | | | | | | | | |
  | WC | B Klahn | $7^7$ | 6 | | WC | B Klahn | 7 | 6 | | | | | | | | | |
  | 2 | I Andreev | $6^3$ | 4 | | | | | | | | | | | | | | |
  