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

Platform comparison

Market context

Polymarket has this Heavyweight main-card fight priced at roughly **70% for Steven Asplund** and **30% for Guilherme Pat**, with the contract settling off the official UFC result on the 8 August card and paying out in USDC via Polygon conditional tokens. That is broadly in line with the wider betting screen, where Asplund is a clear favourite across sportsbooks and market aggregators, generally sitting around the mid-70s in implied win probability while Pat is priced in the high-20s to low-30s.[1][7][9][10]

For traders, the key read is that the market is not treating this as a close coin-flip, even though some model-based or exchange views are less one-sided than the headline price. Comparable pre-fight listings show Asplund favoured across multiple books, and Polymarket’s own contract has already concentrated most interest on the Asplund side, which typically means the crowd is assigning the highest weight to a straightforward official win rather than a draw or no-contest path.[1][11][13]

The main catalysts before settlement are straightforward: final UFC bout status, any late card reshuffling, and the official result announcement from UFC after the fight. That matters because the contract resolves to “50-50” if the bout is declared a draw, technical draw, no contest, not scored, cancelled, or pushed beyond the stated deadline, so the settlement risk is tied to the official event bureaucracy as much as to the cage action itself.[1][8]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track UFC Fight Night: Steven Asplund vs. Guilherme Pat (Heavyweight, Main Card) across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.

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.