Bobby Voelker

Voelker compiled an undefeated amateur record of 10–0 before making his professional MMA debut in 2006. He competed in events primarily in Iowa and Kansas, amassing a record of 20–7 before signing with Strikeforce.

Voelker's debut took place on November 20, 2009 at Strikeforce Challengers: Woodley vs. Bears, where he faced off against WEC veteran Erik Apple, defeating Apple via TKO (punches) in the second round.

His second appearance took place at Strikeforce Challengers: Lindland vs. Casey, where he faced heavy-handed up-and-coming striker "Relentless" Roger Bowling. The fight ended in a technical decision in favor of Bowling due to an unintentional eye injury to Bowling.

He was next signed to face Cory Devela, who was on a two-fight slide, on July 23, 2010, at Strikeforce Challengers: del Rosario vs. Mahe. Devela easily took round one, swarming Voelker and turning the fight into a grappling match. The second and third rounds were a lot closer to call, with Devela mostly controlling Voelker in the clinch, but the split decision was awarded to Voelker, who remained in a dominant position for much of the final frames, landing shots from top position.[4]

A rematch with Bowling took place at Strikeforce Challengers: Bowling vs. Voelker. Voelker won a very one-sided fight via technical knockout in the second round due to punches. Voelker and Bowling fought for a third time at Strikeforce Challengers: Voelker vs. Bowling III to create Strikeforce's first trilogy. Once again, Voelker dominated and out struck Bowling, thus winning the fight via TKO due to a knee in the second round.

In January 2013, the Strikeforce organization was closed by its parent company Zuffa. A list of fighters scheduled to be brought over to the Ultimate Fighting Championship was released in mid-January and Voelker was included.[5]

For his debut, Voelker faced Patrick Côté, who was making his Welterweight debut, on March 16, 2013 at UFC 158.[6] 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.[7] 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.[8] He lost the fight via knockout in the second round.

Voelker faced William Macário on December 28, 2013 at UFC 168.[9] He lost the fight via unanimous decision.[10]

Voelker faced Lance Benoist on June 7, 2014 at UFC Fight Night 42.[11] He lost the back-and-forth fight via unanimous decision, and was subsequently released from the promotion.

After racking a 9–1 record on the regional circuit, Voelker signed with Bellator MMA in April 2019.[12] 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.[13]

On May 3, 2021, it was announced that Voelker was no longer under contract with Bellator.[14]

After the one-off bout in Bellator, Voelker returned to Shamrock FC facing Josh Weston at Shamrock FC 332 on October 9, 2021.[15] He won the bout via first-round knockout.[16]