Greg Soto has four losses against four opponents on his MMA record. For a list of Soto's best fights, refer to "Best fights of Greg Soto".
On December 18, 2017 Greg Soto faced off against Thiago Reia in a welterweight bout at age 31. He was coming in with a record of 9-4 (6). Soto lost the fight via 1st-round submission.
On April 14, 2012 Greg Soto met George Sullivan in a welterweight (CFFC Championship) title defense fight. Soto was 25 years old and with a record of 9-3 (6), and Sullivan was 31 years old and with a record of 9-3 (6). Soto lost the fight via 1st-round KO and lost the title.
On January 1, 2011 Greg Soto faced off against Daniel Roberts at age 24. He was coming in with a record of 8-2 (5), and Roberts was 30 years old and with a record of 11-1 (8). Soto lost the fight via 1st-round submission.
On March 27, 2010 Greg Soto faced off against Matthew Riddle at age 23. He was coming in with a record of 7-1 (5). Soto lost the fight via 3-round disqualification.
