PMP · MMAUFC 331
Main Event · Flyweight
Joshua Van17-2
VSAlexandre Pantoja30-6
Market opens soon
UFC · MMA
UFC 331: Van vs. Pantoja 2
Saturday, September 19, 2026 · main card 9:00 PM EDT · Crypto.com Arena · Paramount+
The 7 OraclesPMP · MMAUFC 331Saturday, September 19, 2026Quick Answer
As of August 27, 2026, UFC 331: Van vs. Pantoja 2 is headlined by Joshua Van (17-2) vs Alexandre Pantoja (30-6) in the flyweight division, Saturday, September 19, 2026 at Crypto.com Arena. Kalshi and Polymarket list combat-fight markets close to fight night — when UFC 331's contracts open, the tale of the tape below fills with live win probabilities for all 13 bouts.
Why you can trade this card
A flyweight title rematch (Van took Pantoja’s belt; Pantoja gets his shot back), Tsarukyan–Ruffy as co-main, Ortega at lightweight and Pitbull Freire vs. Doo Ho Choi — numbered UFC cards carry the deepest MMA liquidity on Kalshi and Polymarket, and every bout here will price.
What the market says
The full card at a glance — the market favorite, cross-platform price gap, method lean and liquidity for every bout. Market-derived, not a pick.
No bout on this card has a listed prediction market yet. Kalshi and Polymarket open combat-fight contracts close to fight night — the scanner fills with live market favorites, win probabilities and price gaps the moment they do. No prices are shown before then.
- Joshua Van vs Alexandre PantojaMain Event · Flyweight
- Arman Tsarukyan vs Mauricio RuffyCo-Main Event · Lightweight
- Patricio Freire vs Doo Ho ChoiFeatherweight
- Renato Moicano vs Brian OrtegaLightweight
- Marlon Vera vs Charles JourdainBantamweight
- Gable Steveson vs Sean SharafHeavyweight
- Alonzo Menifield vs Iwo BaraniewskiLight Heavyweight
- Tai Tuivasa vs Robelis DespaigneHeavyweight
- Edmen Shahbazyan vs Brunno FerreiraMiddleweight
- Giga Chikadze vs Joanderson BritoFeatherweight
- Casey O’Neill vs Eduarda MouraWomen’s Flyweight
- Ryan Gandra vs Osman DiazLight Heavyweight
- Michael Aswell vs Joo Sang YooFeatherweight
Main card
PMP · MMAUFC 331
Main Event · Flyweight
Joshua Van17-2
VSAlexandre Pantoja30-6
Market opens soon
PMP · MMAUFC 331
Co-Main Event · Lightweight
Arman Tsarukyan23-3
VSMauricio Ruffy14-2
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PMP · MMAUFC 331
Featherweight
Patricio Freire37-9
VSDoo Ho Choi17-4-1
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PMP · MMAUFC 331
Lightweight
Renato Moicano21-7-1
VSBrian Ortega16-5
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PMP · MMAUFC 331
Bantamweight
Marlon Vera23-12-1
VSCharles Jourdain18-8-1
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Prelims
PMP · MMAUFC 331
Heavyweight
Gable Steveson4-0
VSSean Sharaf4-2
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PMP · MMAUFC 331
Light Heavyweight
Alonzo Menifield18-6-1
VSIwo Baraniewski9-0
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PMP · MMAUFC 331
Heavyweight
Tai Tuivasa14-10
VSRobelis Despaigne6-2
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PMP · MMAUFC 331
Middleweight
Edmen Shahbazyan16-6
VSBrunno Ferreira15-4
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PMP · MMAUFC 331
Featherweight
Giga Chikadze15-6
VSJoanderson Brito19-5-1
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PMP · MMAUFC 331
Women’s Flyweight
Casey O’Neill11-2
VSEduarda Moura12-2
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PMP · MMAUFC 331
Light Heavyweight
Ryan Gandra10-1
VSOsman Diaz10-4
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PMP · MMAUFC 331
Featherweight
Michael Aswell11-5
VSJoo Sang Yoo9-1
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The prediction-market read
UFC 331: Van vs. Pantoja 2 brings 13 bouts to Crypto.com Arena in Los Angeles, California on Saturday, September 19, 2026, live on Paramount+. The card is headlined by Joshua Van (17-2) against Alexandre Pantoja (30-6) in the flyweight division.
Kalshi and Polymarket list combat-fight markets close to fight night, so UFC 331's win prices aren't posted yet. The card above shows the full tale of the tape — records, divisional ranks and country — and each bout flips to a live market-implied win probability the moment its contract opens. No prices are fabricated before then.
Prediction markets are not sportsbooks — you trade a contract that settles at $1 or $0, not a wager against a house line. Informational only; trade responsibly.
UFC 331 — frequently asked
Who is favored at UFC 331?
Joshua Van (17-2) meets Alexandre Pantoja (30-6) in the main event. UFC 331's combat-fight markets list close to fight night — once they open, the tale of the tape above shows the market favorite and a live win probability for each bout, with no fabricated prices before then.
How can I watch UFC 331?
UFC 331: Van vs. Pantoja 2 streams on Paramount+. Main card starts 9:00 PM EDT on Saturday, September 19, 2026. While you watch, the live market read for every bout — market-implied win probability and comma-free American odds — is on this page the moment UFC 331's contracts list.
Can you trade UFC 331 fights on Kalshi or Polymarket?
Yes — these are prediction markets, not a sportsbook. UFC cards carry live markets on both venues: Kalshi is a CFTC-regulated exchange available to traders in all 50 states, and Polymarket is open to US traders too. We lead with Kalshi for the broader US-listed slate and the deeper per-market book. You take a yes/no position on a fighter in a contract that settles at $1 or $0 — no point spread, just the binary outcome.
When and where is UFC 331?
UFC 331: Van vs. Pantoja 2 takes place Saturday, September 19, 2026 at Crypto.com Arena in Los Angeles, California, broadcast on Paramount+. Main card starts 9:00 PM EDT.
How do prediction-market MMA odds work?
Each fighter's price is the market-implied probability they win, quoted in cents (a 69¢ contract implies a 69% chance) and shown here as comma-free American odds. Unlike a sportsbook line, the contract settles at $1 if the fighter wins and $0 if they lose, so the price IS the probability.
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Prediction markets carry risk. Contracts can settle at $0. Informational only — not financial advice. Trade responsibly.