T. J. Cook has five losses against five opponents on his MMA record. For a list of Cook's best fights, refer to "Best fights of T. J. Cook".
On August 18, 2012 T. J. Cook faced off against Ovince Saint Preux in a light-heavyweight bout at age 29. He was coming in with a record of 12-5 (11), and Preux was 29 years old and with a record of 11-5 (8). Cook lost the fight via 3rd-round KO.
On November 18, 2011 T. J. Cook faced off against Trevor Smith in a light-heavyweight bout at age 29. He was coming in with a record of 12-4 (11), and Smith was 30 years old and with a record of 8-1 (7). Cook lost the fight via 1st-round submission.
On March 7, 2008 T. J. Cook faced off against George Lockhart in a middleweight bout at age 25. He was coming in with a record of 7-3 (7). Cook lost the fight via 2nd-round submission.
On October 6, 2007 T. J. Cook faced off against Emyr Bussade in a middleweight bout at age 25. He was coming in with a record of 7-2 (7). Cook lost the fight via 2nd-round submission.
On March 23, 2007 T. J. Cook faced off against Bill Vucick in a middleweight bout at age 24. He was coming in with a record of 6-1 (6). Cook lost the fight via 1st-round submission.