Starting off his pro career on March 2006 age 21, Roberto domingo Sosa has had a total of 27 fights - 26 wins, 1 losses, and 0 draws. 14 of the wins coming via stoppage. He started his best winning streak on March 2006 however, this came to an end on September 2012. In this period he won a total of 24 fights.
Sosa didn't take long to get comfortable in the pro game, becoming the first person to stop Andres marcelo Cravenna (a 3 fight pro) via TKO in the 4th round. Sosa then went on to win his next 14 fights - fighting 6 times in 2006 and 3 times in 2008 racking up wins against Horacio fabian Chicagual, Reginaldo Martins carvalho and Ariel humberto Alassia amongst others.
Nestor abel Martinez was up next for Sosa on April 22nd, 2006. Sosa continued with his winning streak by beating Martinez. Nestor abel Martinez was Sosa's next opponent of his career in 2006. The fight was scheduled for 4 and Sosa was the 3rd person to go the distance with Martinez. Sosa's win streak of 2 rose to 10 following 8 great wins, becoming the 4th person to go the distance with Ruben dario Dutra, 5th person to go the distance with Manuel alberto Linarez and 5th person to go the distance with Adrian dimas Garzon.
Sosa entered his next fight with 10 wins and took this to 11 with a win against Ariel humberto Alassia on November 3rd, 2007. Alassia was stopped in the 3rd round via RTD meaning Sosa was the first person to stop this opponent. 7 wins followed for Sosa including being the 2nd person to stop Elvis Garcia, 6th person to stop Santos Marimon (Round 2 KO) and 4th person to beat Santiago ivan Acosta.
Furthering his career, Sosa fought Roberto Santos de jesus on August 14th, 2010 and advanced his winning streak to 19 wins. Santos de jesus proved to be no match for Sosa, and Sosa became the first person to stop Santos de jesus via KO during round 1. 5 wins followed for Sosa including being the 4th person to go the distance with Zolani Tete, 2nd person to stop Tadeu Almeida pantoja (Round 2 KO) and 3rd person to stop Devis Perez (Round 7 TKO).
The first defeat of Sosa's career came against Juan carlos Sanchez jr on June 8th, 2013. This took his career record to 24-1-0. On June 8th, 2013, Sosa took on and was defeated over the distance by Juan carlos Sanchez jr in his first career defeat. Sosa lost via UD in a valiant effort.
Sosa went into his next career fight with a record of 24-1-0 and took this to 25 wins with a win against Carlos ariel Farias on February 22nd, 2014. Sosa's UD win against Carlos ariel Farias came via judges decision of a 10 round fight. Sosa became the 8th person to defeat Farias and secured a great win.
Roberto domingo Sosa added another win to his record by beating Carlos ruben dario Ruiz on March 6th, 2015, upping his record to 26 wins. Keeping his record on track, Sosa showed his boxing ability in his most recent fight, taking Carlos ruben dario Ruiz the distance and securing a UD decision victory in a 10 round fight.