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John Castaneda wins

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Chance

73%

Buy Yes

73¢

pays $1 if it happens

Buy No

28¢

pays $1 if it doesn’t

Vol 24h

$109

as Kalshi reports it · 9 fills

Spread

1¢

round tripThin

Prices from Kalshi, updated 12 minutes ago. Ends Oct 10, 9:40 PM UTC.

Price over the last 2 weeks
Cost of a Yes share

Latest trades

  • 2 hours agoSold yes at 73¢$5
  • 8 hours agoSold yes at 73¢$8
  • 9 hours agoSold yes at 73¢$20
  • 11 hours agoSold yes at 73¢$12
  • 12 hours agoSold yes at 73¢$29
  • 13 hours agoSold yes at 73¢$1
  • 17 hours agoSold yes at 75¢$1
  • 18 hours agoSold yes at 75¢$4
  • 18 hours agoSold yes at 74¢$1

Rules

How this market is decided
Settled by DAZN, ESPN, Fox Sports, the Governing League. Contract terms (PDF)

If John Castaneda wins the Castaneda vs Heili professional MMA fight originally scheduled for Sep 26, 2026, then the market resolves to Yes. The following market refers to the Castaneda vs Heili professional MMA fight originally scheduled for Sep 26, 2026. If this fight is postponed or delayed, the market will remain open and close after the rescheduled fight has finished (within two weeks). If the fight is declared a tie or no contest, the market will resolve to 50/50 for both fighters. If the fight is cancelled or rescheduled to over two weeks away, the market will resolve to a fair price in accordance with the rules. This market and these products have not been endorsed by Zuffa LLC, d/b/a Ultimate Fighting Championship, UFC. Any references to the “UFC,” or any other associated marks are descriptive only, and do not indicate an endorsement of this product or any affiliation between Zuffa and Kalshi.

Rule history

  1. First recordedNo changes since.

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