UFC Middleweight Championship

Lore & Background

The Pride World Welterweight Championship (182.98 lb) was unified with the UFC Middleweight Championship on March 1, 2008, when Anderson Silva defeated Dan Henderson at UFC 82.

In Their Own Story

The Octagon lights hum to life. The crowd is a single, roaring organism. In the center, the champion circles his opponent, hands loose, grinning that half-mad grin that has become his trademark. The bell rings. For three rounds it's a chess match — feints, angles, a spinning back kick that whistles past an ear. In the fourth, the champion plants his feet, loads his hips, and the arena holds its breath. The impact is a thunderclap in the silence that follows.

Reader's Guide

The middleweight division was originally introduced as the lightweight division in 1997, then renamed to middleweight at UFC 14. It encompassed all fighters 199 pounds (90 kg) and under until the UFC realigned its weight classes in 2001 to comply with new regulations, establishing the current 171–185 lb limit.

Did You Know?

• The middleweight division was originally called the lightweight division before being renamed at UFC 14.
• The division initially included all fighters 199 pounds and under until the 2001 weight class realignment.
• The Pride World Welterweight Championship was unified with the UFC Middleweight Championship in 2008.

The Flyweight Title Rematch

The centerpiece of UFC 331 is a UFC Flyweight Championship rematch pitting current champion Joshua Van against former champion Alexandre Pantoja. Their initial clash took place at UFC 323 in December 2025, where Van seized the title with a technical knockout a mere 26 seconds into the opening round. Crucially, the stoppage was triggered by an arm injury Pantoja sustained rather than a conventional knockout, meaning the former champion was cut down before a full contest could unfold. That context gives the September 19, 2026, rematch a distinct narrative: Pantoja enters with the knowledge that his first loss was less a measure of skill and more a matter of an unfortunate physical setback. The bout will take place at Crypto.com Arena in Los Angeles, California, with the event carrying the Crypto.com branding for sponsorship purposes.

The Co-Main Event Whirlwind

The co-main event of UFC 331 underwent a dramatic last-minute reshuffle. Arman Tsarukyan was originally set to face Charles Oliveira in a five-round lightweight bout, with early reports indicating that Oliveira would defend his symbolic BMF title. However, on August 5, the promotion announced that Tsarukyan would instead meet Maurício Ruffy in a non-title five-round lightweight contest. The change came just days after the death of Oliveira's longtime teammate, UFC flyweight Allan Nascimento, though the promotion offered no official explanation for Oliveira's withdrawal. The two men had previously crossed paths at UFC 300 in April 2024, where Tsarukyan edged out a split decision victory. The shift from a potential BMF title defense against a former champion to a non-title bout against a different opponent fundamentally altered the narrative arc of the card's second-biggest fight.

The Postponed Superfight

Among the most talked-about matchups in recent UFC scheduling was a Women's Bantamweight Championship bout between reigning champion Kayla Harrison and former two-time champion Amanda Nunes, reportedly planned for UFC 331. The pairing carried extraordinary weight: Harrison is a 2012 and 2016 Olympic gold medalist in judo and a two-time PFL women's lightweight tournament champion, while Nunes not only held the bantamweight title twice but also captured the UFC Women's Featherweight Championship. The fight was originally slated for UFC 324 in January 2026, but Harrison withdrew after a diagnosis of herniated discs in her neck required surgery. The bout was subsequently postponed to UFC 331 for undisclosed reasons. The combination of Olympic-level judo mastery and multiple UFC title reigns made this a once-in-a-generation cross-discipline pairing, and its indefinite postponement left fans without a definitive answer to one of the sport's most compelling matchup questions.

Venue, Logistics, and Supporting Card

UFC 331 represents the promotion's sixth visit to Los Angeles and its first since UFC 227 in August 2018, a gap of nearly eight years. The event will be held at Crypto.com Arena, with the venue's name attached to the event title for sponsorship purposes. Early speculation had pointed to alternative locations, including the Intuit Dome in Inglewood, California, or a slot within the promotion's Noche UFC 4 celebration of Mexican Independence Day in Glendale, Arizona. Beyond the headline and co-main, the card features a bantamweight bout between Marlon Vera and Charles Jourdain, relocated from UFC Fight Night: du Plessis vs. Usman in July for undisclosed reasons. A lightweight rematch between Renato Moicano and Brian Ortega also anchors the card; their first meeting at UFC 214 in July 2017 ended with Ortega securing a third-round guillotine choke. The pair had been expected to meet again at UFC 326 in March, but Ortega's injury withdrawal derailed those plans, and Moicano was subsequently moved to headline UFC Fight Night: Moicano vs. Duncan.

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