Montana de la Rosa

Montana De La Rosa (née Stewart) She started training in wrestling at Azle High School and after faring well in both state and national competition she was offered a scholarship to Oklahoma City University. De La Rosa started training Brazilian jiu-jitsu after she graduated in 2013 and later transitioned to MMA.

The Ultimate Fighter In August 2017, it was announced that De La Rosa was one of the fighters featured on The Ultimate Fighter 26, UFC TV series, where the process to crown the UFC's inaugural 125-pound women's champion will take place. In the opening round, De La Rosa faced Ariel Beck and she won the fight D'Arce choke in round one. In the quarterfinals, she faced Nicco Montaño and lost the bout via unanimous decision.

Ultimate Fighting Championship De La Rosa made her UFC debut on December 1, 2017, on The Ultimate Fighter 26 Finale against Christina Marks. She won the fight via a submission in round one.

Her next fight came on July 6, 2018, at The Ultimate Fighter 27 Finale against Rachael Ostovich. She won the fight via a rear-naked choke in round three.

On February 10, 2019, De La Rosa faced Nadia Kassem at UFC 234. She won the fight via a submission in round two. The win earned her the Performance of the Night bonus.

De La Rosa faced Andrea Lee on June 22, 2019, at UFC Fight Night 154. She lost the fight by unanimous decision.

De La Rosa faced Mara Romero Borella on February 15, 2020, at UFC Fight Night 167. She won the fight via unanimous decision.

De La Rosa was scheduled to face Maryna Moroz on September 5, 2020, at UFC Fight Night 176. However, Moroz was forced to withdraw from the event due to visa issues and she was replaced by Viviane Araújo. De La Rosa lost the fight via unanimous decision.

De La Rosa was scheduled to face Taila Santos, replacing Maryna Moroz, on December 5, 2020, at UFC on ESPN 19. However, the fight was removed from the event after one of De La Rosa's cornermen tested positive for COVID-19.

De La Rosa faced Mayra Bueno Silva on February 27, 2021, at UFC Fight Night 186. After three rounds of fighting, the fight ended with a draw from the judges.

De La Rosa faced Ariane Lipski on June 5, 2021, at UFC Fight Night: Rozenstruik vs. Sakai. She won via TKO in the second round, the first of her career.

De La Rosa was expected to face Maycee Barber on December 11, 2021, at UFC 269. However, De La Rosa pulled out of the fight in early October citing injury. While not officially confirmed by the promotion, officials are expected to leave the matchup intact and reschedule it for a future event.

De La Rosa faced Maycee Barber on April 23, 2022, at UFC Fight Night 205. She lost the fight via unanimous decision.

De La Rosa faced Tatiana Suarez on February 25, 2023, at UFC Fight Night 220. She lost the fight via a submission in round two.

De La Rosa was scheduled to face Stephanie Egger at UFC Fight Night 229 on October 7, 2023. However, Egger pulled out for undisclosed reasons and was replaced by JJ Aldrich. De La Rosa lost the fight via unanimous decision.

De La Rosa faced Andrea Lee in a rematch on June 8, 2024, at UFC on ESPN 57. She won the fight by split decision.

De La Rosa was scheduled to face Luana Carolina on March 1, 2025 at UFC Fight Night 253. However, the bout was scrapped as a result of Carolina's botched weight cut.

On March 20, 2025, it was reported that De La Rosa was removed from the UFC roster.

Professional Fighters League On December 2, 2025, it was announced that De La Rosa signed with the PFL.

De La Rosa made her PFL debut against Tatiana Postarnakova on July 31, 2026, at PFL New York. She lost the bout via split decision.

Professional grappling career De La Rosa competed against Gillian Robertson in the main event of Pit Submission Series 3 on March 23, 2024. She lost by unanimous decision.

Personal life De La Rosa is married to Mark De La Rosa, who was also a UFC fighter. Tied (Erin Blanchfield & Casey O'Neill) for third most finishes in UFC Women's Flyweight division history (4) Xtreme Fighting League Xtreme Fighting League Flyweight Championship (One time)

Wrestling High school wrestling All-American (Three times)

Mixed martial arts record Loss

Tatiana Postarnakova Decision (split) PFL New York: Nurmagomedov vs. Colgan

Elmont, New York, United States Win

Andrea Lee Decision (split) UFC on ESPN: Cannonier vs. Imavov

Louisville, Kentucky, United States Loss

JJ Aldrich Decision (unanimous) UFC Fight Night: Dawson vs. Green

Las Vegas, Nevada, United States Loss

Tatiana Suarez Submission (guillotine choke) UFC Fight Night: Muniz vs. Allen

Las Vegas, Nevada, United States Loss

Maycee Barber Decision (unanimous) UFC Fight Night: Lemos vs. Andrade

Las Vegas, Nevada, United States Win

Ariane Lipski TKO (punches) UFC Fight Night: Rozenstruik vs. Sakai

Las Vegas, Nevada, United States Draw

Mayra Bueno Silva Draw (majority) UFC Fight Night: Rozenstruik vs. Gane

Las Vegas, Nevada, United States Loss

Viviane Araújo Decision (unanimous) UFC Fight Night: Overeem vs. Sakai

Las Vegas, Nevada, United States Win

Mara Romero Borella Decision (unanimous) UFC Fight Night: Anderson vs. Błachowicz 2

Rio Rancho, New Mexico, United States Loss

Andrea Lee Decision (unanimous) UFC Fight Night: Moicano vs. The Korean Zombie

Greenville, South Carolina, United States Win

Nadia Kassem Submission (armbar) UFC 234

Melbourne, Australia Win

Rachael Ostovich Submission (rear-naked choke) The Ultimate Fighter: Undefeated Finale

Las Vegas, Nevada, United States Win

Christina Marks Submission (armbar) The Ultimate Fighter: A New World Champion Finale

Las Vegas, Nevada, United States Win

Kathina Lowe Submission (armbar) Xtreme Fight Night 342

Tulsa, Oklahoma, United States Loss

Cynthia Calvillo TKO (punches) LFA 1

Dallas, Texas, United States Loss

Mackenzie Dern Submission (rear-naked choke) Legacy FC 61

Dallas, Texas, United States Win

Miki Rogers Decision (unanimous) Xtreme Fight Night 335

Grant, Oklahoma, United States Win

Mellony Geugjes Decision (unanimous) SCC 13

Fort Worth, Texas, United States Win

Francis Hernandez Submission (rear-naked choke) Xtreme Fight Night

Grant, Oklahoma, United States Win

Katie Ross Scharmer Submission (rear-naked choke) Savage Entertainment: Oktoberfist 4

Savage, Minnesota, United States Win

Roxanne Ceasear Submission (armbar) Premier Fight Series 4

Midland, Texas, United States Win

Colby Fletcher Submission (armbar) Xtreme Fight Night: Rumble on The River 12

Tulsa, Oklahoma, United States Loss

Maylene Estudillo Decision (unanimous) Rocks Xtreme MMA 11

Corpus Christi, Texas, United States Loss

Jazmin Quezada Decision (split) 24/7 Entertainment 16 & 17

Midland, Texas, United States

Mixed martial arts exhibition record Loss

Nicco Montaño Decision (unanimous)

(airdate)

Win

Ariel Beck Submission (D'Arce choke) (airdate)