title: 2012 Knoxville Challenger – Singles
text: # 2012 Knoxville Challenger – Singles
  
  Jesse Levine was the defending champion but was defeated in the First Round by Tennys Sandgren. Michael Russell won the final 6–3, 6–2 against Bobby Reynolds.
  
  ## Seeds
  
  * Jesse Levine (first round)
  * Alex Bogomolov Jr. (first round, retired because of a shoulder injury)
  * Michael Russell (champion)
  * Mischa Zverev (second round)
  * Ryan Sweeting (second round)
  * Bobby Reynolds (final)
  * Tim Smyczek (semifinals)
  * Denis Kudla (quarterfinals)
  
  ## 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 |
  | - | - | - | - | - | - | - | - |
  | | Samuel Groth | $6^3$ | $6^1$ | | | | |
  | 3 | Michael Russell | $7^7$ | $7^7$ | | | | |
  | 3 | Michael Russell | $7^7$ | $7^7$ | 3 | Michael Russell | 6 | 6 |
  | | | | | 6 | Bobby Reynolds | 3 | 2 |
  | 7 | Tim Smyczek | 4 | $6^5$ | 6 | Bobby Reynolds | 3 | 2 |
  | 6 | Bobby Reynolds | 6 | $7^7$ | | | | |
  
  ### Top half
  
  | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 1 | J Levine | $6^4$ | 6 | 3 | | | | | | | | | | | | | |
  | | T Sandgren | $7^7$ | 3 | 6 | | T Sandgren | $7^7$ | 6 | | | | | | | | | |
  | | A Bossel | 6 | 6 | | | A Bossel | $6^2$ | 2 | | | | | | | | | |
  | WC | Jarryd Chaplin | 2 | 4 | | | | | | | T Sandgren | $6^2$ | 1 | | | | | |
  | | S Groth | 4 | 6 | $7^7$ | | | | | | S Groth | $7^7$ | 6 | | | | | |
  | LL | F Wolmarans | 6 | 1 | $6^4$ | | S Groth | $7^7$ | 7 | | | | | | | | | |
  | | S-Y Jeong | 5 | 3 | | 5 | R Sweeting | $6^3$ | 5 | | | | | | | | | |
  | 5 | R Sweeting | 7 | 6 | | | | | | | | | | | | S Groth | $6^3$ | $6^1$ |
  | 3 | M Russell | 6 | 6 | | | | | | | | | | | 3 | M Russell | $7^7$ | $7^7$ |
  | WC | E Quigley | 2 | 2 | | 3 | M Russell | 6 | 6 | | | | | | | | | |
  | Q | D Britton | 6 | 6 | | Q | D Britton | 3 | 3 | | | | | | | | | |
  | WC | C Harrison | 3 | 4 | | | | | | 3 | M Russell | 4 | $7^7$ | 6 | | | | |
  | | B Klahn | $7^7$ | 4 | 6 | | | | | 8 | D Kudla | 6 | $6^5$ | 3 | | | | |
  | | J-P Smith | $6^2$ | 6 | 3 | | B Klahn | 2 | 2 | | | | | | | | | |
  | | J Sock | 3 | 6 | $6^5$ | 8 | D Kudla | 6 | 6 | | | | | | | | | |
  | 8 | D Kudla | 6 | 2 | $7^7$ | | | | | | | | | | | | | |
  
  ### 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 | Semifinals | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 7 | T Smyczek | $6^6$ | 6 | $7^7$ | | | | | | | | | | | | | |
  | | A Bogdanovic | $7^8$ | 2 | $6^5$ | 7 | T Smyczek | 7 | 7 | | | | | | | | | |
  | | M Lammer | 1 | $7^8$ | 4 | | I van der Merwe | 5 | 5 | | | | | | | | | |
  | | I van der Merwe | 6 | $6^6$ | 6 | | | | | | 7 | T Smyczek | 6 | 6 | | | | |
  | | R Williams | $6^3$ | 6 | $7^7$ | | | | | | | R Williams | 3 | 4 | | | | |
  | Q | A Krajicek | $7^7$ | 4 | $6^4$ | | R Williams | 4 | 7 | 6 | | | | | | | | |
  | Q | D King-Turner | 2 | 3 | | 4 | M Zverev | 6 | 5 | 3 | | | | | | | | |
  | 4 | M Zverev | 6 | 6 | | | | | | | | | | | 7 | T Smyczek | 4 | $6^5$ |
  | 6 | B Reynolds | 6 | 6 | | | | | | | | | | | 6 | B Reynolds | 6 | $7^7$ |
  | | T-h Yang | 2 | 2 | | 6 | B Reynolds | 6 | 6 | | | | | | | | | |
  | | C Reix | 4 | 3 | | PR | J Witten | 2 | 4 | | | | | | | | | |
  | PR | J Witten | 6 | 6 | | | | | | | 6 | B Reynolds | 6 | 6 | | | | |
  | | A Kuznetsov | 7 | 6 | | | | | | | | A Kuznetsov | 4 | 3 | | | | |
  | WC | Brandon Ficky | 5 | 2 | | | A Kuznetsov | 6 | 6 | | | | | | | | | |
  | Q | L Gregorc | $7^7$ | 5 | | Q | L Gregorc | 4 | 4 | | | | | | | | | |
  | 2 | A Bogomolov Jr. | $6^5$ | $1^r$ | | | | | | | | | | | | | | |
  