Jason Guida is the older brother of UFC lightweight fighter Clay Guida but his record is far more inconsistent. Jason is considered a journeyman, and has fought at heavyweight, light-heavyweight and middleweight.
He most recently lost to Jeremy Horn by submission, then defeated Logan Clark via knockout. He went on to lose to Mark George via second-round TKO (injury). He then fought Jeff Monson, losing via rear-naked choke in the second round. He next lost a split decision to Justin Lemke continuing to a three-fight losing streak. He then faced Nick Rossborough, losing via unanimous decision. He then faced Sam Alvey, losing a split decision to secure a five-fight losing streak.