Din Thomas had a record of 2-2 in the UFC before getting the call to feature in TUF, but had spent the previous three years in the smaller leagues. As well as fighting a staph infection on the show, Thomas also fought Mikey Burnett and quickly won by submission. He would go no further in the competition though, losing a decision to Chris Lytle in the semi-finals. In the season finale he bounced back with a submission win over Rich Clementi, the first in a three fight win-streak in the UFC that also included a decision win over Clay Guida and Submission Of The Night performance over Jeremy Stephens.
A successful 2007 ended on a sour note though with a defeat to Kenny Florian, which was followed up by a further loss to Jeremy Stephens in April of the following year. The back-to-back losses ended his second spell in the UFC, leaving with a 5-4 record for the promotion. It would be almost a year later before he re-emerged, now fighting at 145lbs, and between February and March in 2009 he garnered two victories in regional promotions.
His latest victory came in January of 2010 after another layoff, but he has stayed busy outside of the cage, featuring in some small independent films, and hosting the ‘1001 Submissions’ instructional DVD’s which were released in November last year. It was recently announced that the charismatic fighter has signed with the mid-level promotion Shine Fights and is set to face off against the former WBA/WBC welterweight champion boxer Ricardo Mayorga who will be making his MMA Debut.