UFC Fight Night: Anthony Wint vs. Terrance Chatman (Heavyweight, Prelims)

Platform comparison

Market context

Anthony Wint’s heavyweight debut against Terrance Chatman has been priced as a near-lock across most books, with Wint trading around -950 to -1,200 and Chatman sitting in the +600 to +800 range. That implies roughly a 90% to 92% win chance for Wint on the betting side, while the market’s 100% YES crowd price is more extreme than the sportsbook consensus and leaves almost no room for uncertainty. Kalshi’s method market also points the same way, with Wint heavily favoured by KO/TKO, but the win contract is still a cleaner read on official result risk than on how the fight ends.

The comparison to similar UFC debut spots is straightforward: bettors usually compress heavily when a hyped newcomer draws a limited opponent, but prediction markets can overshoot if they assume completion rather than just victory. Wint came in after a very short-notice UFC debut path, having secured his contract only 11 days earlier, which explains the strong market support, while Chatman remains the far less backed side. That said, the 100% YES level is materially higher than the broad analyst and sportsbook range, so the main cross-platform divergence is not on the favourite, but on how absolute the win probability should be.

The key catalysts are official weigh-in status, any late medical or commission issues, and the fight actually making the cage, because the contract resolves to 50-50 if the bout is cancelled, postponed beyond 5 September 2026, or ruled no contest. UFC-facing coverage on 22 August described the bout as scheduled for the Sacramento card and noted Wint’s expected walk to the cage that evening, which supports the view that execution risk, rather than matchup risk, is the main tail for traders. Any late change to the prelims order or card health would matter more here than usual because the settlement window closes immediately after the scheduled event time.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi vs Polymarket, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi vs Polymarket. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi vs Polymarket trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.