Sean Spencer, a mixed martial artist, competed with a record of 12 wins, 6 losses, and no draws. He specialized in the welterweight division, standing at 5 feet 10 inches tall with a reach of 74 inches, adopting an orthodox stance. In terms of performance, Spencer demonstrated a significant strikes per minute average of 4.24, striking accurately 32% of the time while absorbing 4.02 strikes per minute. His strike defense was strong at 60%, and he attempted no submissions during his UFC career on average. Notable victories in Spencer's career include a decision win against Paulo Thiago, with an opponent ELO rating of 1000. In his most recent fights, Spencer competed against Alex Garcia, resulting in a split decision loss; followed by a victory over Paulo Thiago via unanimous decision. However, he suffered losses to Cathal Pendred, Mike Pyle (due to a knockout/technical knockout from an elbow), and Yancy Medeiros (submission via rear naked choke). His last fight was on September 10, 2016.