The Breakdown: Joshua Van Opens as Slight Underdog Against Alexandre Pantoja at UFC 331

UFC 331 is set for Crypto.com Arena in Los Angeles on September 19, the promotion announced recently. The main event is a championship rematch between current flyweight champion Joshua Van and former champion Alexandre Pantoja.

This is a story of redemption, validation and a rivalry created by pure bad luck. Joshua Van steps into his second title defense hoping to finally silence the naysayers who claimed his championship victory was a fluke, while veteran Pantoja aims to regain the throne that was taken from him by a freak physical accident rather than a clean defeat.

This is a very interesting case study in market adjustments and public perception from a betting perspective. DraftKings has opened the champion Van as a slight +100 underdog, a significant shift from the +176 price tag he carried into their first meeting. Let’s get into the wild history of this matchup, break down the stylistic clash, and dig into the betting odds for UFC 331.

A Rivalry Forged in Controversy

We need to go back to December 2025 at UFC 323 to understand the betting lines and the huge stakes of this main event. Alexandre Pantoja entered the Octagon that night as one of the most dominant flyweight champions in recent memory, boasting four successful title defenses, including a dramatic rear-naked choke victory over Kai Kara-France at UFC 317. He was set to defend against the surging 24-year-old Joshua Van.

The fight lasted exactly 26 seconds. After an initial exchange, Pantoja lost his balance and fell awkwardly to the canvas. In an attempt to brace his fall, Pantoja’s arm catastrophically gave out, dislocating and forcing referee Herb Dean to instantly wave off the contest. Van was awarded the TKO victory due to injury, instantly becoming the second-youngest champion in UFC history, trailing only Jon Jones.

Predictably, the MMA community was fractured. While no one blamed Van for the outcome, a vocal contingent of fans and analysts slapped an asterisk next to his title reign, calling the victory a fluke. Van took this criticism in stride and immediately sought to legitimize his status. With Pantoja sidelined for extended rehab, Van accepted a dangerous first title defense against the surging grappling phenom Tatsuro Taira at UFC 328 in May.

In what is already being heralded as a Fight of the Year candidate, Van silenced the doubters. He survived Taira’s early grappling onslaught and displayed phenomenal cardio and striking precision, ultimately securing a stunning fifth-round knockout to retain the gold. Now riding a seven-fight win streak, Van has proven he is a championship-caliber fighter.

Meanwhile, Alexandre Pantoja has not competed since that fateful night at UFC 323. After extensive surgery and physical therapy, the 36-year-old Brazilian is finally cleared to compete, setting the stage for a monumental showdown in Los Angeles.

Tale of the Tape

Fighter Profiles & Stylistic Matchup

Joshua Van: The Validated Champion (+100)

At 24 years old, Joshua Van represents the new breed of mixed martial artist. He is a highly technical, fast-twitch striker who blends crisp boxing fundamentals with immense forward pressure. But Van has one great asset and that is his cool. Van demonstrated veteran-level patience against Tatsuro Taira, never panicking when put in compromised grappling positions. He believes in his defensive wrestling, in his scrambling back to his feet.

Van’s objective against Pantoja is clear: keep the fight in open space and manage the distance. Pantoja is a chaos master, superb in wild scrambles and dirty boxing exchanges. Van circles away from the pressure of Pantoja using his footwork, throwing a stiff jab to disrupt the Brazilian’s forward momentum. The champion will also be looking to take advantage of his youth and cardio. If Van can drag Pantoja into the championship rounds, his superior conditioning could allow him to take over late, much like he did against Taira.

Alexandre Pantoja: The Return of the Former King (-120)

Alexandre Pantoja is a wizard of grappling, with a fierce, brawling striking style. Before his injury, Pantoja was the undisputed king of the flyweights, breaking his opponents’ will with relentless pressure and high level Brazilian Jiu-Jitsu. He is not a fighter who meticulously points-fights, he hunts for finishes, transitioning seamlessly from heavy overhands into reactive takedowns.

For Pantoja, the keys to victory are pressure and grappling. He cannot afford to stand at range and engage in a pure kickboxing match with the faster, younger champion. Pantoja must cut off the cage, initiate the clinch, and drag Van to the mat. Once grounded, Pantoja’s back-takes and submission threats are among the most lethal in the sport.

However, the glaring question mark hovering over the former champion is his health and rust. At 36 years old and returning from a catastrophic arm injury that kept him out for nearly ten months, how will his body hold up? Will he trust that arm when throwing strikes or bracing for takedowns? These are the intangibles that make this matchup incredibly difficult to predict.

Analyzing the Betting Markets

Looking at the betting odds for UFC 331, the DraftKings odds give us an interesting perspective on how the oddsmakers and the betting public view this matchup.

The Odds Shift

Pantoja was a big favorite in their first meeting at UFC 323, with Van closing at +176 underdog. This time, DraftKings has moved the line heavily the other way, opening Van at +100 and Pantoja at -120.

This line movement is very well justified. Van’s spectacular fifth-round knockout over Tatsuro Taira proved that he belongs at the championship level and possesses five-round cardio. Conversely, Pantoja is stepping into the Octagon at 36 years old an age where flyweights typically see a sharp decline in speed and reaction time. Combine his age with a horrific, long-term injury layoff, and it becomes clear why the oddsmakers are highly respecting the champion’s chances.

Prop Market Angles

Because the moneyline is so tightly contested, the true value in this fight will likely be found in the prop markets and total rounds.

The Case for Van via KO/TKO or Decision: If you are backing the champion at +100, you are essentially betting against Pantoja’s durability and cardio holding up after surgery. Van has proven he carries power into the late rounds. Looking at Van by KO/TKO or Van by Decision will offer significantly better returns than his flat +100 moneyline. If Van establishes his jab early and stifles Pantoja’s takedowns, he can systematically out-strike the veteran over 25 minutes or find a late stoppage.

The Case for Pantoja via Submission: For Pantoja backers, the path of least resistance is on the canvas. While Pantoja possesses knockout power, finishing a durable 24-year-old on the feet is a tall order. Pantoja by Submission is historically where his bread is buttered, especially considering his track record of wrapping up elite fighters like Kai Kara-France and Kai Asakura. If Pantoja can secure Van’s back in a scramble, the fight could end instantly.

Over/Under Totals: The total rounds line will be highly indicative of how the market views this clash of styles. If the line is set at 3.5 or 4.5 rounds, bettors must weigh Van’s incredible cardio against Pantoja’s historical tendency to either secure an early finish or get dragged into absolute wars. Given Van’s patience and Pantoja’s potential ring rust, the Over could be an intriguing play, assuming Van employs a cautious, distance-management game plan in the early rounds.

Final Thoughts on UFC 331

The main event of UFC 331 is one of the most compelling storylines of 2026. It is rare to see a championship change hands due to a freak injury, and even rarer to see the new champion go out and legitimize his reign with a Fight of the Year performance against a completely different stylistic threat.

Joshua Van has done everything asked of him to prove he is a worthy champion. He steps into the Crypto.com Arena in Los Angeles with the weight of expectation on his shoulders, fighting not just to defend his belt, but to erase the asterisk from his initial crowning. Alexandre Pantoja, meanwhile, is fighting against Father Time, ring rust, and the physical trauma of a devastating injury to reclaim what he feels is rightfully his.

The oddsmakers did a good job of setting the table with a near pick ‘em moneyline, respecting Van’s undeniable momentum as well as Pantoja’s championship pedigree. As the lines mature and the prop markets open up, finding the right betting angle will require dissecting precisely how Pantoja’s aging body will react to the speed, precision, and suffocating cardio of a young champion determined to prove his greatness.