fighters scheduled to be brought over to the Ultimate Fighting Championship was released in mid-January and Voelker was included. For his debut, Voelker faced Patrick Côté, who was making his Welterweight debut, on March 16, 2013 at UFC 158. Despite finishing strong and winning the third round, Voelker was unsuccessful in his debut, losing the back-and-forth fight via unanimous decision. Voelker was briefly scheduled to face James Head on August 28, 2013 at UFC Fight Night 27. However, on July 11, it was announced that Voelker was tabbed as a replacement for Siyar Bahadurzada and face Robbie Lawler on July 27, 2013 at UFC on Fox 8. He lost the fight via knockout in the second round. Voelker faced William Macário on December 28, 2013 at UFC 168. He lost the fight via unanimous decision. Voelker faced Lance Benoist on June 7, 2014 at UFC Fight Night 42. He lost the back-and-forth fight via unanimous decision, and was subsequently released from the promotion. Bellator MMA After racking a 9–1 record on the regional circuit, Voelker signed with Bellator MMA in April 2019. He made his promotional debut against Sabah Homasi at Bellator 250 on October 29, 2020. He lost the fight via flying knee in the second round. On May 3, 2021, it was announced that Voelker was no longer under contract with Bellator. Return to regional circuit After the one-off bout in Bellator, Voelker returned to Shamrock FC facing Josh Weston at Shamrock FC 332 on October 9, 2021. He won the bout via first-round knockout. Personal life Aside from his career as a fighter, Voelker works in construction and is also a devout Catholic. During his UFC tenure, Voelker studied at Kansas City Kansas Community College to be a paramedic and eventually graduated. Championships and accomplishments Shamrock Fighting Championships Shamrock FC Welterweight Championship (one time) Mixed martial arts record |- |Win |align=center|34–14 |Josh Weston |TKO (punches) |Shamrock FC 332 | |align=center|1 |align=center|1:12 |Kansas City, Missouri, United States | |- |Loss |align=center|33–14 |Sabah Homasi |KO (flying knee and punches) |Bellator 250 | |align=center|2 |align=center|0:20 |Uncasville, Connecticut, United States | |- | Win | align=center| 33–13 | Cameron VanCamp | Decision (unanimous) | Shamrock FC 317 | | align=center| 5 | align=center| 5:00 | Kansas City, Missouri, United States | |- | Win | align=center| 32–13 | Darrius Flowers | TKO (punches) | Shamrock FC 313 | | align=center| 2