Colton Smith has five losses against five opponents on his MMA record. For a list of Smith's best fights, refer to "Best fights of Colton Smith".
On March 17, 2018 Colton Smith faced off against Sean Brady in a welterweight bout at age 30. He was coming in with a record of 7-5 (3), and Brady was 25 years old and with a record of 7-0 (4). Smith lost the fight via 3-round unanimous decision.
On June 28, 2014 Colton Smith faced off against Carlos Diego Ferreira in a lightweight bout at age 26. He was coming in with a record of 3-4 (2), and Ferreira was 29 years old and with a record of 9-0 (5). Smith lost the fight via 1st-round submission.
On November 6, 2013 Colton Smith faced off against Michael Chiesa in a lightweight bout at age 26. He was coming in with a record of 3-3 (2), and Chiesa was 25 years old and with a record of 7-1 (5). Smith lost the fight via 2nd-round submission.
On May 25, 2013 Colton Smith faced off against Robert Whittaker in a welterweight bout at age 25. He was coming in with a record of 3-2 (2), and Whittaker was 22 years old and with a record of 10-2 (9). Smith lost the fight via 3rd-round TKO.
On February 24, 2012 Colton Smith faced off against Steve Montgomery at age 24. He was coming in with a record of 2-1 (2). Smith lost the fight via 2nd-round KO.