Irene Aldana

UFC 289 Countdown previews a showdown for the women’s bantamweight title, as double champ Amanda Nunes defends her crown against hard-hitting Irene Aldana. Plus, top lightweights collide as Charles Oliveira faces off with Beneil Dariush.

Invicta FC 11: Cyborg vs. Tweet is a mixed-martial events that took place on February 27, 2015. The event was headlined by Cristiane Justino defending her featherweight championship against Charmaine Tweet. Christine Stanley was scheduled to face Emily Corso but Corso withdrew due to injury on January 30 and was replaced by Rachael Cummins. Two days before the event, Cummins withdrew due to suffering an injury in training and was replaced at the last minute by Laura Salazar. DeAnna Bennett was scheduled to face Lynn Alvarez but Alvarez withdrew due to injury on February 11 and was replaced by Norma Rueda Center. Irene Aldana was to face Melanie LaCroix but Melanie withdrew due to injury as well and was replaced by Colleen Schneider.

UFC 264: Poirier vs. McGregor 3 was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on July 10, 2021 at the T-Mobile Arena in Paradise, Nevada, part of the Las Vegas Metropolitan Area, United States. A lightweight trilogy between former interim UFC Lightweight Champion Dustin Poirier and former UFC Featherweight and Lightweight Champion Conor McGregor headlined the event.

Invicta FC 19: Maia vs. Modafferi was a mixed martial arts event that was headlined by Jennifer Maia defending her flyweight championship against Roxanne Modafferi. The event's co-main event featured atomweight champion Ayaka Hamasaki defending her title against top contender Jinh Yu Frey.

UFC 296: Edwards vs. Covington was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on December 16, 2023, at the T-Mobile Arena in Paradise, Nevada, part of the Las Vegas Metropolitan Area, United States. A UFC Welterweight Championship bout between current champion Leon Edwards and former interim champion Colby Covington headlined the event.

UFC 237: Namajunas vs. Andrade was a mixed martial arts event produced by the Ultimate Fighting Championship that was held on May 11, 2019, at Jeunesse Arena in Rio de Janeiro, Brazil. A UFC Women's Strawweight Championship bout between current champion Rose Namajunas and Jéssica Andrade served as the event headliner.

UFC Fight Night 159: Rodriguez vs. Stephens was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on September 21, 2019 at Mexico City Arena in Mexico City, Mexico. The Ultimate Fighter: Latin America featherweight winner Yair Rodríguez and Jeremy Stephens served as the main event.

UFC 289: Nunes vs. Aldana was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on June 10, 2023, at the Rogers Arena in Vancouver, British Columbia, Canada. A UFC Women's Bantamweight Championship bout between current two-time champion (also current UFC Women's Featherweight Champion) Amanda Nunes and Irene Aldana headlined the event.

UFC 306: O'Malley vs. Dvalishvili (branded as Riyadh Season Noche UFC for sponsorship reasons) was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on September 14, 2024, at the Sphere in Paradise, Nevada, part of the Las Vegas Metropolitan Area, United States. A UFC Bantamweight Championship bout between current champion Sean O'Malley and Merab Dvalishvili headlined the event.

UFC on ESPN 16: Holm vs. Aldana was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on October 4, 2020 at the du Forum on Yas Island, Abu Dhabi, United Arab Emirates. A women's bantamweight bout between former UFC Women's Bantamweight Champion Holly Holm and Irene Aldana served as the event headliner.

Event (UFC Fight Pass at 8 p.m. ET): Michelle Waterson vs. Yasuko Tamada Katja Kankaanpaa vs. Stephanie Eggink Ediane Gomez vs. Tonya Evinger Tara La Rosa vs. Roxanne Modafferi Michelle Ould vs. DeAnna Bennett Peggy Morgan vs. Irene Aldana Charmaine Tweet vs. Veronica Rothenhausler Ashley Cummins vs. Alexa Grasso Jodie Esquibel vs. Jinh Yu Frey Delaney Owen vs. JJ Aldrich

UFC 245: Usman vs. Covington was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on December 14, 2019 at T-Mobile Arena in Paradise, Nevada. A UFC Welterweight Championship bout between the current champion and The Ultimate Fighter: American Top Team vs. Blackzilians winner Kamaru Usman and former interim champion Colby Covington served as the event headliner. A UFC Featherweight Championship bout between the current champion Max Holloway and Alexander Volkanovski took place as the co-main event.

UFC 228: Woodley vs. Till is a mixed martial arts event produced by the Ultimate Fighting Championship held on September 8, 2018 at American Airlines Center in Dallas, Texas.

UFC Fight Night 124: Stephens vs. Choi was a mixed martial arts event produced by the Ultimate Fighting Championship held on January 14, 2018, at Scottrade Center in St. Louis, Missouri.

UFC on ESPN 4: dos Anjos vs. Edwards was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on July 20, 2019 at the AT&T Center in San Antonio, Texas. A welterweight bout between former UFC Lightweight Champion Rafael dos Anjos and Leon Edwards was the event headliner.

UFC on Fox 22: VanZant vs. Waterson was a mixed martial arts event promoted by the Ultimate Fighting Championship and held on December 17, 2016, at Golden 1 Center in Sacramento, California. A women's bout between Paige VanZant and former Invicta FC Atomweight Champion Michelle Waterson served as the event headliner.

Invicta FC 13: Cyborg vs. Van Duin is a mixed-martial arts event held on July 9, 2015 at The Chelsea at The Cosmopolitan in Las Vegas. Headlining the event is a featherweight title fight between champion Cristiane “Cyborg” Justino (13-1, 1 NC) and New Zealand’s Faith Van Duin (5-1). Cyborg successfully defended her 145-pound title at Invicta FC 11, stopping Canadian Charmaine Tweet in 46 seconds. In the night’s co-main event, a new bantamweight champion will be crowned as Tonya Evinger (15-5) locks horns with Mexico’s Irene Aldana (5-1). Also slated for the July event is an atomweight title fight between Brazilian champion Herica Tiburcio (9-2) and Japan’s Ayaka Hamasaki (11-1).

UFC 210: Cormier vs. Johnson 2 was a mixed martial arts event produced by the Ultimate Fighting Championship held on April 8, 2017, at the KeyBank Center in Buffalo, New York. A UFC Light Heavyweight Championship rematch between current champion Daniel Cormier and Anthony Johnson headlined the event. The pairing met previously in May 2015 at UFC 187 with Cormier winning the fight (and the vacant title) via submission in the third round.

UFC 279: Diaz vs. Ferguson was a mixed martial arts event produced by the Ultimate Fighting Championship that took place on September 10, 2022, at the T-Mobile Arena in Paradise, Nevada, part of the Las Vegas Metropolitan Area, United States. A welterweight bout between Khamzat Chimaev and former lightweight title challenger (also The Ultimate Fighter 5 lightweight winner) Nate Diaz was originally expected to headline the event. However at the weigh-ins, Chimaev weighed in at 178.5 pounds, 7.5 pounds over the welterweight non-title limit and the bout was cancelled. As a result, the organization opted to shuffle a trio of fights: a new main event featuring Diaz against former interim UFC Lightweight Champion (also The Ultimate Fighter: Team Lesnar vs. Team dos Santos welterweight winner) Tony Ferguson, who was originally scheduled to face Li Jingliang in a welterweight bout, was then set.

Invicta FC 16: Hamasaki vs. Brown was a mixed martial arts event that was headlined by an Invicta FC Atomweight Championship bout as champion Ayaka Hamasaki defended against Amber Brown. The co-main event will crown an interim flyweight champion in a fight between Vanessa Porto and Jennifer Maia while reigning champion Barb Honchak takes time off. The event was scheduled to feature the return of Alexa Grasso against Stephanie Eggink, however Grasso broke her hand a week before the event and was replaced by Angela Hill. Amberlynn Orr was set to debut against Kelly McGill but Orr was forced to pull out as well due to an injury and was replaced by Aspen Ladd.