[7] On April 13, 2012, Moraes fought Jarrod Card at XFC 17, He won via knock out in 47 seconds of round one.
[9] On November 3, 2012, Moraes made his promotional debut against former WEC Bantamweight Champion Miguel Torres at WSOF 1.
On March 23, 2013, Moraes defeated Nam via knockout due to a head kick and punches in the first round.
[16] Moraes was scheduled to defend his title against Josh Hill on September 13, 2014, at World Series of Fighting 13.
However, Hill was injured and replaced by Cody Bollinger, with the bout being changed to a non-title, catchweight affair.
Marlon Moraes won via rear naked choke submission in the third round to retain his WSOF Bantamweight Championship.
Moraes won via technical knockout due to leg kicks in the first round to retain his WSOF Bantamweight Championship.
[29] Moraes made a quick return to the Octagon as he stepped in to replace Rani Yahya against Aljamain Sterling at UFC Fight Night: Swanson vs. Ortega on December 9, 2017.
[32] After UFC Fight Night 123 in Fresno, the California State Athletic Commission (CSAC) flagged Moraes for gaining more than 10% of his weight back after weigh-ins.
CSAC will not license him for bantamweight bouts “without extensive medical documentation from a licensed physician certifying the weight class is appropriate and verified by CSAC physicians.”[33] Moraes faced Jimmie Rivera on June 1, 2018, at UFC Fight Night 131.
[35] Moraes faced Raphael Assunção in a rematch on February 2, 2019, in the main event at UFC Fight Night 144.
[36] Moraes won the rematch in the first round by first dropping Assunção with two punches and then securing a guillotine choke submission.
He stated that he wanted to “thank everyone- Sean Shelby, Dana White and the UFC for giving him the opportunity”.
[58] He lost the bout in the second round, after a barrage of leg kicks left him unable to continue to fight.
[60] After Flores had failed a commission drug test and was pulled from the season, he was replaced by Gabriel Braga.
[63] After announcing his retirement on June 8, 2023 after his knockout loss against Gabriel Braga, Moraes transitioned into a career in law enforcement.