Doane made his MMA debut as an amateur in April 2007, when he faced Chris Williams at Hawaii Fighting Championship: Stand Your Ground 3. He lost the via guillotine choke submission.
Early career
Doane made his professional MMA debut on March 15, 2008, when he faced Tyson Nam at Icon Sport: Baroni vs. Hose. He won his debut via TKO. Doane faced Frank Baca at KOTC: Ali'is on July 14, 2012 for the KOTC Flyweight Championship. He won the fight via unanimous decision. He faced former UFC fighter Jared Papazian at on November 14, 2013, for the TPF Bantamweight Championship. He won the fight via TKO in the fourth round to win the championship.
Ultimate Fighting Championship
Following his championship win over Papazian in November 2013, Doane would make his UFC debut on January 4, 2014, against Leandro Issa at UFC Fight Night 34. He won the fight via technical submission. Doane next faced Marcus Brimage on July 5, 2014 at UFC 175. He won the fight via split decision. Doane faced Iuri Alcântara on September 13, 2014 at UFC Fight Night 51. He lost the fight via unanimous decision. Doane faced Jerrod Sanders on July 12, 2015 at. He lost the fight via unanimous decision. Doane was briefly linked to a bout with Michinori Tanaka on January 2, 2016 at UFC 195. However, Doane was forced from the bout with injury and replaced by Joe Soto. Doane next faced Pedro Munhoz on July 7, 2016 at UFC Fight Night 90. He lost the fight via submission in the first round. Doane was tabbed as a short notice replacement to face Mirsad Bektić in a featherweight bout on October 8, 2016 at UFC 204, filling in for Arnold Allen. He lost the fight via submission in the first round. Doane faced Kwan Ho Kwak on June 17, 2017 at UFC Fight Night 111. He won the fight via TKO in the first round. Doane faced Rani Yahya on February 24, 2018 at UFC on Fox 28. He lost the fight via submission in the third round. It was reported that Doane was released from UFC on October 2, 2018.
Post-UFC career
As the first fight after his UFC release, Doane faced Diego Silva at Destiny MMA on March 2, 2019. He won the fight via unanimous decision.
Personal life
Before making his UFC debut, Doane was a full-time carpenter.
