Selcuk Aydin's professional debut was against Marian Gabris and knocked him out in the 1st round with 1 minute 31 seconds in. He then fought various other fighters. His first major fight for a title was against Lucky Lewele for the vacant
WBC International welterweight title. He defeated him with a unanimous decision to gain the title. He then defended his title against Marat Khuzeev, Luis Hernandez, Said Ouali and Jackson Osei Bonsu. On June 5, 2010 Selcuk had a bout with Jo Jo Dan for the vacant WBC Silver welterweight title. He defeated Jo Jo Dan with a controversial split decision to win and nab himself the WBC Silver welterweight title. He would then go onto defeat Jo Jo Dan again via controversial decision in a re-match over a year later on November 26, 2011.
Selcuk Aydin vs. Robert Guerrero On 28 July 2012 Selcuk Aydin faced Robert Guerrero for the interim WBC Welterweight Title. It was by far Selcuk's most important fight in his career at this point. Robert Guerrero was shown as a clear favourite for this fight. The fight lasted the full 12 rounds and Robert Guerrero won with a unanimous decision with the referee's scoring it 117-111, 116-112, 116-112. After the fight Selcuk Aydin was interviewed and said he had been ripped off by not being given this chance when he was first declared the mandatory contender to fight for the belt and said since then he has lost his will and energy.
Selcuk Aydin vs. Jesus Soto Karass After suffering the first loss of his career against Robert Guerrero, Aydin returned to the ring for a 10-round fight with Jesus Soto Karass on January 26, 2013. The fight went the distance, where Soto Karass was awarded a majority decision victory.
Selcuk Aydin vs. DeMarcus Corley Following an eighth-round KO victory over Aaron Herrera two months earlier, Aydin then went on to face DeMarcus Corley on September 27, 2013. Aydin won by TKO in the fifth round when Corley was unable to continue and decided to quit in the process.
Postol vs. Aydin Aydin fought against Ukrainian undefeated boxer Postol for title elimination in U.S and lost this match by KO in round 11.
Ring return In the fifth round, Selcuk Aydin won by TKO against Nodar Robakidze. ==Professional boxing record==