On episode one, Markos won a three round decision over Tecia Torres On episode nine (quarterfinals), Markos submitted Felice Herrig via armbar at 2:14 of the first round On episode 12 (semifinals), Markos was submitted by Rose Namajunas via Kimura at 2:45 of the first round TUF 20 Finale (12/12/14) Markos lost a three round split decision to Jessica Penne UFC 186 (4/25/15) Markos won a three round unanimous decision over Aisling Daly UFC on FOX (12/19/15) Markos lost a three round unanimous decision to Karolina Kowalkiewicz UFC Fight Night (6/18/16) Markos won a three round unanimous decision over Jocelyn Jones-Lybarger UFC 202 (8/20/16) Markos was submitted by Cortney Casey via armbar at 4:34 of the first round UFC Fight Night (2/19/17) Markos won a three round split decision over Carla Esparza UFC Fight Night (8/5/17) Markos lost a three round split decision to Alexa Grasso UFC on FOX (1/27/18) Markos won a three round unanimous decision over Juliana Lima UFC on FOX (7/28/18) Markos lost a three round unanimous decision to Nina Ansaroff
UFC Fight Night (9/22/18) Markos fought to a three round draw with Marina Rodriguez UFC Fight Night (3/23/19) Markos submitted Angela Hill via armbar at 4:24 of the first round UFC 239 (7/6/19) Markos lost a three round unanimous decision to Claudia Gadelha UFC Fight Night (10/26/19) Markos won a three round split decision over Ashley Yoder
UFC Fight Night (3/14/20) Markos lost a three round unanimous decision to Amanda Ribas UFC Fight Night (9/19/20) Markos was submitted by Mackenzie Dern via armbar at 3:44 of the first round UFC Fight Night (11/14/20) Markos lost a three round unanimous decision to Kanako Murata UFC Fight Night (5/1/21) Markos lost her bout against Luana Pinheiro via disqualification (illegal upkick) at 4:16 of the first round