UFC Fight Night: Steven Asplund vs. Guilherme Pat (Heavyweight, Main Card)

Platform comparison

Market context

Steven Asplund meets Guilherme Pat in a heavyweight main-card bout at UFC Fight Night, and the market is pricing Asplund as the clear favourite rather than a 100% certainty. Sportsbooks in the feed cluster around Asplund at roughly **-270 to -305**, which translates to a win probability in the low- to mid-70s, while Guilherme Pat sits around **+235 to +265** on the same boards.[2][8][14][17] By comparison, the prediction market is tighter but still one-sided: Polymarket has been trading near **70%** for Asplund, and Kalshi has shown about **72%**.[7][5] That leaves the crowd-implied “100% YES” figure well above both bookmaker consensus and market pricing, suggesting a much stronger conviction than the wider odds set supports.[2][5][7]

The best historical frame is how heavyweight favourites often compress late if the market expects one fighter to control the grappling or finish early, but they still rarely trade as near-certainties before the cage walk. Analyst picks in the feed lean Asplund, with Yahoo’s projection at **Asplund -282** and DraftKings-style coverage also pointing to an inside-the-distance angle, yet one model source still has a narrower gap at **57%/43%**.[1][6][12] That spread matters because it shows a meaningful gap between broad consensus and the 100% market price, even though the direction of travel is the same: Asplund ahead, Pat the live underdog.[1][6]

For traders, the key catalysts are official UFC confirmation, any late injury or weigh-in issues, and whether the bout stays on the announced main-card slot after the usual card reshuffles.[1][12][13] The market’s settlement terms also make the finish condition important: a draw, no contest, cancellation, or postponement beyond the August 22 window pushes resolution to **50-50**, so any late change to the bout date or result would matter more than the pre-fight odds.[user market description]

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 Best Prediction Markets UK, 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.

UK Frequently Asked Questions

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.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

What are the best prediction markets for UK traders in 2026?

For UKGC-regulated markets: Betfair Exchange (sports, politics) and Smarkets (sports, politics, lower commission than Betfair). For broader global event prediction: Polymarket (deepest liquidity, 0% fee, USDC settlement). For US-regulated option: Kalshi (USD, limited UK payment options). Most serious UK traders use a combination of Betfair for regulated sports and Polymarket for broader markets.