| Doubles | |
|---|---|
| 2013 Sacramento Challenger | |
| Champions |  John-Patrick Smith Matt Reid |
| Runners-up |  Jarmere Jenkins Donald Young |
| Score | 7–6(7–1), 4–6, [14–12] |
Tennys Sandgren and Rhyne Williams were the defending champions, but they lost in the first round.
John-Patrick Smith and Matt Reid won the title, defeating Jarmere Jenkins and Donald Young in the final, 7–6(7–1), 4–6, [14–12].
Samuel Groth / Chris Guccione (first round) John-Patrick Smith / Matt Reid (champions) Tennys Sandgren / Rhyne Williams (first round) Alex Kuznetsov / 
Peter Polansky (first round, withdrew)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | S Groth C Guccione | 65 | 7 | [6] | |||||||||||||||||||||||
C Ball  D Molchanov | 77 | 5 | [10] | C Ball D Molchanov | 2 | 77 | [10] | ||||||||||||||||||||
| S Johnson T Smyczek | 66 | 77 | [10] | S Johnson T Smyczek | 6 | 65 | [3] | ||||||||||||||||||||
 M Arévalo  D Cox | 78 | 64 | [8] | C Ball D Molchanov | 63 | 4 | |||||||||||||||||||||
| 3 | T Sandgren R Williams | 3 | 2 | WC | J Jenkins D Young | 77 | 6 | ||||||||||||||||||||
| WC | J Jenkins D Young | 6 | 6 | WC | J Jenkins D Young | 6 | 6 | ||||||||||||||||||||
| Q | N Meister D Nguyen |  P Gojowczyk D Zivkovic | 3 | 2 | |||||||||||||||||||||||
| P Gojowczyk D Zivkovic | w/o | WC | J Jenkins D Young | 61 | 6 | 12 | |||||||||||||||||||||
| A Krajicek D Kudla | 6 | 6 | 2 | M Reid J-P Smith | 77 | 3 | 14 | ||||||||||||||||||||
| WC | Dennis Nevolo D Novikov | 1 | 4 | A Krajicek D Kudla | 7 | 2 | [6] | ||||||||||||||||||||
| WC | R Kendrick Brian Martinez | w/o | WC | R Kendrick B Martinez | 5 | 6 | [10] | ||||||||||||||||||||
| 4 | A Kuznetsov P Polansky | WC | R Kendrick B Martinez | 66 | 5 | ||||||||||||||||||||||
| R Ram B Reynolds | 2 | M Reid J-P Smith | 78 | 7 | |||||||||||||||||||||||
| D Evans N Kyrgios | w/o | D Evans N Kyrgios | |||||||||||||||||||||||||
B Klahn  J McGee | 4 | 2 | 2 | M Reid J-P Smith | w/o | ||||||||||||||||||||||
| 2 | M Reid J-P Smith | 6 | 6 | ||||||||||||||||||||||||
The 2011 Knoxville Challenger was a professional tennis tournament played on hard courts. It was the eighth edition of the tournament which is part of the 2011 ATP Challenger Tour. It took place in Knoxville, United States between 8 and 13 November 2011.
Juan Sebastián Cabal and Robert Farah were the defending champions but decided not to participate.
Dudi Sela and Harel Srugo won the final against Adrien Bossel and Michael McClune 6–2, 3–6, [10].
Jordan Kerr and David Martin were the defending champions but decided not to participate.
Austin Krajicek and John Peers won the title, defeating Tennys Sandgren and Rhyne Williams 6–1, 7–6(7–4) in the final.
Carsten Ball and Chris Guccione were the defending champions but Ball decided not to participate.
Guccione played alongside Samuel Groth.
Tennys Sandgren and Rhyne Williams won the title against Devin Britton and Austin Krajicek by defeating them 4–6, 6–4, [12–10] in the final.
Amer Delić and Travis Rettenmaier were the defending champions but decided not to participate.
Lee Hsin-han and Peng Hsien-yin defeated Tennys Sandgren and Rhyne Williams 6–7(1–7), 6–2, [10–5] in the final to win the title.
Chris Eaton and Dominic Inglot were the defending champions but decided not to participate.
Alex Kuznetsov and Mischa Zverev defeated Tennys Sandgren and Rhyne Williams 6–4, 6–7(7–4), [10–5] in the final to capture the title.
The 2013 Comerica Bank Challenger was a professional tennis tournament played on hard courts. It was the 26th edition of the tournament which was part of the 2013 ATP Challenger Tour. It took place in Aptos, California, United States between 5 and 11 August July 2013.
This was the first edition of the event.
John Peers and John-Patrick Smith but Peers chose not to compete.
Smith chose to compete with Samuel Groth and lost to eventual champion Steve Johnson and Tim Smyczek.
They defeated Jarmere Jenkins and Donald Young 6–4, 6–3.
Tim Smyczek was the defending champion but lost to Erik Crepaldi in the first round.
Unseeded American Tennys Sandgren won the title defeating Australian 7th seed Samuel Groth 3–6, 6–3, 7–6(7–5).
Devin Britton and Austin Krajicek were the defending champions but Britton decided not to participate.
Krajicek partnered with Tennys Sandgren, but lost in the final to the British pairing of Edward Corrie and Daniel Smethurst 7–6(7–5), 0–6, [10–7].
Austin Krajicek and Tennys Sandgren were the defending champions. but decided not to compete.
Bobby Reynolds and John-Patrick Smith were the defending champions, but Reynolds chose not to participate. Smith partnered with Adam Hubble and lost in the quarterfinals to Alex Kuznetsov and Nils Langer.
John-Patrick Smith and Matt Reid were the defending champions, however they chose not to participate with each other. Smith partners Adam Hubble, whilst Reid partners Jose Statham.
Juan Mónaco was the defending champion, but lost in the first round to Dustin Brown.
Ivo Karlović was the defending champion, but lost in the quarterfinals to Peter Gojowczyk.
Reilly Opelka was the defending champion but lost in the first round to Tennys Sandgren.
Jack Sock was the defending champion, but lost in the second round to Peter Gojowczyk.
Steve Johnson was the defending champion and successfully defended his title, defeating Tennys Sandgren in the final, 7–6(7–2), 2–6, 6–4.
Leander Paes and Purav Raja were the defending champions but only Paes chose to defend his title, partnering Miguel Ángel Reyes-Varela. Paes lost in the quarterfinals to Alex Lawson and Jackson Withrow.