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

Platform comparison

Market context

Steven Asplund is scheduled to face Guilherme Pat in a heavyweight bout on the UFC Fight Night card in Las Vegas, and this market pays on the official UFC result for that fight. In prediction-market terms, a **YES** share would mean the market resolves to Asplund, while a **NO** share would mean Pat wins; if the bout ends as a draw, no contest, or is otherwise not scored, the market can resolve 50-50 under the rules here.[1][2][11]

The starting point for reading the current **100% YES** crowd-implied probability is that it is far more bullish than the pre-fight pricing seen in recent fight coverage. Comparable previews and odds lists put Asplund as a clear favourite, with moneylines around -257 to -330 and some model-based estimates closer to a mid-50s or high-50s win chance, while Pat has generally been priced as the underdog.[5][7][8][15] That means the market is signalling not just that Asplund is favoured, but that traders currently see his win as almost certain; in UFC markets, that is usually only sustained when the bout is expected to go ahead and the favourite is considered dominant on the available information.[2][10]

The main catalysts to watch are straightforward: the official bout running order, whether both fighters make it to the cage, and the post-fight announcement from the UFC, since that is the resolution source.[2][11] Fight previews place the matchup on the main card at the Meta APEX in Las Vegas, and the scheduled timing matters because any late change, cancellation, or technical issue can affect whether the market settles on a winner or on 50-50.[1][10][11] For traders new to this, the key is that prediction markets here are not asking who is *most likely* to win in the abstract, but whether the UFC formally records Asplund as the winner once the bout is over.[2]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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.

UK Frequently Asked Questions

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 Prediction Market UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.