| Doubles | |
|---|---|
| 2015 San Luis Open Challenger Tour | |
| Champions |  Guillermo Durán Horacio Zeballos |
| Runners-up |  Sergio Galdos Guido Pella |
| Final score | 7–6(7–4), 6–4 |
Kevin King and Juan Carlos Spir were the defending champions, but Spir did not participate. King partnered with Dean O'Brien and lost in the semifinals.
Guillermo Durán and Horacio Zeballos won the title, defeating Sergio Galdos and Guido Pella in the final, 7–6(7–4), 6–4.
Mariusz Fyrstenberg / 
Aisam-ul-Haq Qureshi (quarterfinals) Guillermo Durán / Horacio Zeballos (champions)
Marcus Daniell / 
Divij Sharan (first round)
Nicolás Barrientos / Eduardo Struvay (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | M Fyrstenberg A-u-H Qureshi | 6 | 6 | ||||||||||||||||||||||||
 A Menéndez-Maceiras  C Ramírez | 3 | 4 | 1 | M Fyrstenberg A-u-H Qureshi | 6 | 4 | [8] | ||||||||||||||||||||
| S Galdós G Pella | 6 | 6 | S Galdós G Pella | 2 | 6 | [10] | |||||||||||||||||||||
 G Clezar F de Paula | 3 | 2 | S Galdós G Pella | 6 | 6 | ||||||||||||||||||||||
| 3 | M Daniell D Sharan | 3 | 5 |  A Behar R Olivo | 4 | 4 | |||||||||||||||||||||
| Alt | A Behar R Olivo | 6 | 7 | Alt | A Behar R Olivo | 7 | 6 | ||||||||||||||||||||
| M Demoliner MA Reyes-Varela | 6 | 1 | [12] | WC | D Garza L Patiño | 5 | 4 | ||||||||||||||||||||
| WC | D Garza L Patiño | 2 | 6 | [14] | S Galdós G Pella | 64 | 4 | ||||||||||||||||||||
| JI Londero A Molteni | 77 | 2 | [12] | 2 | G Durán H Zeballos | 77 | 6 | ||||||||||||||||||||
 G Melzer  H Podlipnik-Castillo | 65 | 6 | [14] | G Melzer H Podlipnik-Castillo | 3 | 4 | |||||||||||||||||||||
 K King  D O'Brien | 6 | 78 | K King D O'Brien | 6 | 6 | ||||||||||||||||||||||
| 4 | N Barrientos E Struvay | 3 | 66 | K King D O'Brien | 5 | 6 | [4] | ||||||||||||||||||||
| C Buchanan A Krajicek | 6 | 6 | 2 | G Durán H Zeballos | 7 | 2 | [10] | ||||||||||||||||||||
| WC | Mauricio Astorga L Gómez | 3 | 4 | C Buchanan A Krajicek | 3 | 6 | [4] | ||||||||||||||||||||
| WC | T Hank M Sánchez | 6 | 2 | [9] | 2 | G Durán H Zeballos | 6 | 2 | [10] | ||||||||||||||||||
| 2 | G Durán H Zeballos | 3 | 6 | [11] | |||||||||||||||||||||||
Martín Alund and Horacio Zeballos were the defending champions but Zeballos decided not to participate.
Alund teamed up with Facundo Bagnis but lost to eventual champions Máximo González and Diego Sebastián Schwartzman in the first round.
Kevin King and Juan Carlos Spir were the defending champions, but lost to Duilio Beretta and Martín Cuevas in the quarterfinals.
This was the first edition of the event.
Guillermo Durán and Máximo González were the defending champions, but González chose not to play this year. Guillermo Durán played alongside Andrés Molteni and lost in the first round to Guido Andreozzi and Guido Pella.
Sam Groth and Chris Guccione were the defending champions, but chose to compete in the 2015 U.S. Men's Clay Court Championships instead.
Ilija Bozoljac and Michael Venus were the defending champions, but they did not participate this year.
Guillermo Durán and Andrés Molteni are the defending champions, but only Molteni defended his title partnering José Hernández.
This was the first edition of the tournament, Julio Peralta and Horacio Zeballos won the title defeating Guillermo Durán and Máximo González in the final 6–2, 6–3.
This was the first edition of the tournament, Guillermo Durán and Máximo González won the title beating Andrej Martin and Hans Podlipnik in the final 7–6(8–6), 7–5.
Guillermo Durán and Horacio Zeballos were the defending champions but chose not to participate.
Guillermo Durán and Horacio Zeballos were the defending champions but chose to participate with different partners. Durán played alongside Andrés Molteni while Zeballos played with Julio Peralta. Durán lost in the first round to Andrea Arnaboldi and Ramkumar Ramanathan.
Guillermo Durán and Máximo González were the defending champions but only González chose to defend his title, partnering Sergio Galdós. González lost in the final to Julio Peralta and Horacio Zeballos.
Pablo Carreño Busta and Guillermo Durán were the defending champions, but Carreño Busta decided not to participate this year. Durán played alongside Andrés Molteni, but lost in the quarterfinals to Víctor Estrella Burgos and Renzo Olivo.
Julio Peralta and Horacio Zeballos were the defending champions, but lost in the quarterfinals to Facundo Bagnis and Guillermo Durán.
Wesley Koolhof and Matwé Middelkoop were the defending champions, but Koolhof chose to compete in Los Cabos instead. Middelkoop played alongside Julian Knowle, but lost in the semifinals to Hans Podlipnik-Castillo and Andrei Vasilevski.
Julio Peralta and Horacio Zeballos were the defending champions but chose not to defend their title.
Rogério Dutra Silva and André Sá were the defending champions, but chose not to participate together. Sá teamed up with Thomaz Bellucci, but lost to Federico Delbonis and Máximo González in the quarterfinals. Dutra Silva played alongside Roman Jebavý, but lost to Delbonis and González in the semifinals.
Andrés Molteni and Adil Shamasdin were the defending champions, but Shamasdin chose to play in Geneva instead. Molteni played alongside Guillermo Durán but lost in the second round to Nick Kyrgios and Jack Sock.
Pablo Cuevas and Guillermo Durán were the defending champions, but chose not to participate this year.
Máximo González and Horacio Zeballos were the defending champions, but chose not to participate together. González played alongside Fabrice Martin, but lost in the first round to Pablo Andújar and Pedro Martínez.