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Live prediction market odds for Antonio Monteiro vs. Tyshawn Williams. Compare prices across Kalshi and Novig and Polymarket and ProphetX.

Browse historical results
Kalshi

Kalshi

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Claim offerLegal in USAVerified Sep 14, 2026

MARKET RESOLVEDKalshi / Novig / Polymarket / ProphetX

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Tyshawn Williams Wins: Antonio Monteiro vs. Tyshawn Williams

Resolved 2026-09-15

This market resolved on 2026-09-15. Tyshawn Williams was the officially declared outcome. Prior to resolution, the market peaked at 88%.

About This Market

Antonio Monteiro vs.

Antonio Monteiro vs. Tyshawn Williams: UFC fight held on 2026-09-15. Review the historical prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.

Price History

Multi-Platform Probabilities
Learn more:How to Read Prediction Market PricesCompare Fees Before You TradeNew to Polymarket?

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Final odds
Loading 30D data…

Final Closing Odds

4 platforms
Candidate
Kalshi
Novig
Polymarket
ProphetX
Fight won by submission: No
——100%—
Fight won by decision: No
——81%—
Fight won by KO/TKO: No
——74%—
Tyshawn WilliamsWINNER
100%69%100%76%
Williams to win by KO/TKO: No
——69%—
Antonio Monteiro
1%32%0%30%
Fight to Go the Distance: No
——1%—
Monteiro to win by KO/TKO: No
——1%—
Antonio Monteiro by Decision
————
Antonio Monteiro by KO/TKO/DQ
————
Antonio Monteiro by Submission
————
Antonio Monteiro to win in Round 1
————
Antonio Monteiro to win in Round 2
————
Antonio Monteiro to win in Round 3
————
Decision / Draw / No Contest
————
Draw/No Contest
————
Fight to Go the Distance: Yes
————
Fight won by decision: Yes
————
Fight won by KO/TKO: Yes
————
Fight won by submission: Yes
————
Monteiro to win by KO/TKO: Yes
————
Over 0.5 Rounds
————
Over 1.5 Rounds
————
Over 2.5 Rounds
————
Tyshawn Williams by Decision
————
Tyshawn Williams by KO/TKO/DQ
————
Tyshawn Williams by Submission
————
Tyshawn Williams to win in Round 1
————
Tyshawn Williams to win in Round 2
————
Tyshawn Williams to win in Round 3
————
Under 0.5 Rounds
————
Under 1.5 Rounds
————
Under 2.5 Rounds
————
Williams to win by KO/TKO: Yes
————

Resolution Oracles

KalshiKalshi
Kalshi Rules
PolymarketPolymarket
UMA Optimistic Oracle
ProphetXProphetX
ProphetX Rules
Read Full Market Rulebooks
Stats
Spread31.1%
Platforms4
Candidates2
Winner

Tyshawn Williams

85.8% avg

Market RulebooksOfficial settlement criteria and edge cases

Market Rulebook: Antonio Monteiro vs. Tyshawn Williams

Official settlement criteria, resolution sources, and edge cases across Kalshi and Novig and Polymarket and ProphetX.

KalshiKalshi
Primary Rule

If Tyshawn Williams wins the Williams vs Monteiro professional MMA fight originally scheduled for Sep 15, 2026, then the market resolves to Yes.

Edge Cases

The following market refers to the Williams vs Monteiro professional MMA fight originally scheduled for Sep 15, 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.

Resolution Oracles
Kalshi Rules
NovigNovig
Primary Rule

Tyshawn Williams in Antonio Monteiro @ Tyshawn Williams (UFC); settled by Novig.

Edge Cases

If the contract cannot be settled on the stated outcome, Novig settles it at fair market value (FMV) instead of refunding it.

PolymarketPolymarket
Primary Rule

This market will resolve to "Antonio Monteiro" if Antonio Monteiro is officially declared the winner of the fight against Tyshawn Williams at Dana White's Contender Series: Season 10, Week 6, scheduled for September 15, 2026. It will resolve to "Tyshawn Williams" if Tyshawn Williams is officially declared the winner. If the fight is declared a draw or technical draw, ruled a No Contest, not scored, canceled, or postponed beyond September 29, 2026, this market will resolve "50-50." The resolution source for this market will be official information from the UFC.

Resolution Oracles
UMA Optimistic Oracle
ProphetXProphetX
Primary Rule

Sports moneyline - resolves based on official game outcome per ProphetX Prediction Rules

Resolution Oracles
ProphetX Rules

Frequently Asked Questions

What does the Antonio Monteiro vs. Tyshawn Williams prediction market track?

The outcomes listed above show how traders are pricing this question. Compare outcome prices from Kalshi, Novig, Polymarket, ProphetX in one place. Each price reflects the market’s implied probability, not a guaranteed result. This event is archived; prices shown are historical.

What were the last available Antonio Monteiro vs. Tyshawn Williams odds?

The last available prices are Tyshawn Williams: 99.5¢ on Kalshi, 99.6¢ on Polymarket, 75.7¢ on ProphetX, 68.5¢ on Novig; Antonio Monteiro: 0.5¢ on Kalshi, 0.4¢ on Polymarket, 30.3¢ on ProphetX, 31.5¢ on Novig. Prices are quoted in cents per $1 share. Check the venue for executable prices and available liquidity. The last available price is not necessarily the final settlement price.

Why do Antonio Monteiro vs. Tyshawn Williams odds vary across prediction markets?

The largest price difference shown across venues is 31.1 percentage points. Venues have different traders, liquidity and fees, so their prices can differ. A price gap alone does not establish an executable arbitrage opportunity; compare settlement rules and the actual buy and sell prices.

How do Antonio Monteiro vs. Tyshawn Williams prediction market payouts work?

For example, Tyshawn Williams at 85.8¢ implies about a 85.8% chance. For a standard $1 contract, a share pays $1 if its outcome settles as correct and $0 if it settles as incorrect. A winning share bought at 40¢ earns 60¢ before fees. Check each venue’s settlement rules, fees and eligibility before trading. Historical prices alone do not identify the winning outcome.