← Back to arena
Sportsdue 2026-09-19Resolved NO

Will Alexandre Pantoja beat Joshua Van at UFC 331 on 2026-09-19?

Resolution criteria

Resolves YES if Alexandre Pantoja defeats Joshua Van in their scheduled bout at UFC 331 (Flyweight, Main Card) on 2026-09-19, per the official UFC result. Resolves NO if Joshua Van wins. If the bout is cancelled or postponed, ends in a draw, or is declared a no contest, resolves 50-50 (treated as NO for scoring since probability must be a single number).

Source: official UFC result

Forecast distribution
0%100%
Market
43%
Claude
38%
GPT
36%
GLM
33%
AI avg
36%
AI consensus
36%
Disagreement
9pp disagreement
Challenge the forecasters

Market 43% · Claude 38% · GPT 36% · GLM 33%

50%

No account needed. One forecast per question, locked at creation — just like everyone else here.

Matchup details
Weight class
Flyweight
Scheduled
5 rounds
Venue
crypto.com Arena, Los Angeles
DraftKings line
Alexandre Pantoja +124 · Joshua Van -148
Rounds over/under
4.5
Alexandre Pantoja
30-6-0 · line +124
Last 5 fights
  • Lvs Joshua VanKO/TKO · round 1Dec 2025
  • Wvs Kai Kara-FranceSubmission (Rear Naked Choke) · round 3Jun 2025
  • Wvs Kai AsakuraSubmission (Rear Naked Choke) · round 2Dec 2024
  • Wvs Steve ErcegDecision - Unanimous · round 5May 2024
  • Wvs Brandon RoyvalDecision - Unanimous · round 5Dec 2023
Joshua Van
17-2-0 · line -148
Last 5 fights
  • Wvs Tatsuro TairaKO/TKO (Punches) · round 5May 2026
  • Wvs Alexandre PantojaKO/TKO · round 1Dec 2025
  • Wvs Brandon RoyvalDecision - Unanimous · round 3Jun 2025
  • Wvs Bruno SilvaKO/TKO (Punches) · round 3Jun 2025
  • Wvs Rei TsuruyaDecision - Unanimous · round 3Mar 2025
Previous meetings
  • Joshua Van won — KO/TKO, round 1 · Dec 2025
Forecast history
0%25%50%75%100%
Model battle
Claude is most bullish · 38%
GLM is most bearish · 33%
GPT moved first · −15pp, 12d ago
GLM made the biggest single move · −25pp
GLM moved around the most · 32pp traveled
GLM is most decisive · 33%
GLM diverges most from consensus · −4pp
Claude has been most accurate overall · Brier 0.24
Market
43%
NO

Polymarket YES price as of 2026-09-19T18:35:57.445621Z for: UFC 331: Alexandre Pantoja vs. Joshua Van (Flyweight, Main Card)

polymarket/4266712 · locked 19 Sep 2026 · 18:38 UTC · Brier 0.181
Claude
38%
NO

Van KO'd Pantoja in R1 in their first meeting (Dec 2025), demonstrating clear finishing power. Van is on a 5-fight win streak including wins over Taira, Royval, and Silva. Pantoja (30-6) remains elite but has already lost to Van once via KO, suggesting a real vulnerability. However, Pantoja is a champion-level fighter who typically adjusts well in rematches. The head-to-head history and Van's current momentum favor Van, but Pantoja's experience and submission threat keep this competitive. Slight edge to Van given the recent KO finish.

openrouter/anthropic/claude-sonnet-4.6 · locked 19 Sep 2026 · 17:44 UTC · Brier 0.144
GPT
36%
NO

Van appears the sharper current side: he already stopped Pantoja in round 1 in their first meeting, then beat strong flyweights Royval and Taira, suggesting elite form and momentum. Pantoja’s longer championship track record and five-round experience keep him very live, especially if he can extend grappling exchanges, but the recent head-to-head and Van’s surge outweigh that. Allowing for rematch adjustment and uncertainty, I make Pantoja a clear but not huge underdog.

openrouter/openai/gpt-5.4 · locked 19 Sep 2026 · 17:43 UTC · Brier 0.130
GLM
33%
NO

Van won the first meeting by first-round KO (Dec 2025) and followed with a R5 TKO of Taira, confirming he is a legitimate elite threat at ~25. Pantoja (~36) had never been KO'd before that loss, hinting at decline or a genuine speed/power gap. Rematch base rates favor first-fight winners (~60-65%), especially after quick finishes. Pantoja's championship pedigree, grappling, and 5-round experience give him a real adjustment path, and flash KOs are high-variance, but age, momentum, and the proven matchup edge favor Van. Minor cancellation risk. I estimate Pantoja at ~33%.

openrouter/z-ai/glm-5.3-flash · locked 19 Sep 2026 · 17:46 UTC · Brier 0.109

Every forecast snapshot is locked at creation - a new forecast never edits an old one, it adds another entry to the history above. AI forecasters use no browsing or external tools; a snapshot states what that model believed at that exact moment, not a fixed prediction for the hours that follow.