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

Platform comparison

Market context

Polymarket is pricing this bout as a near-certainty for **Steven Asplund**, with the contract showing a **100% YES** crowd-implied probability and, on Polymarket’s USDC-settled, Polygon-based conditional-token market, that implies participants are effectively treating Asplund as the winner already. The listed UFC event is Steven Asplund v Guilherme Pat in the heavyweight bout on the UFC Fight Night card in Las Vegas, and the market resolves from official UFC result reporting rather than sportsbook movement or social chatter.[5][8][17]

That strength is easy to read against the pre-fight baseline. Comparable trading and odds screens had Asplund as a clear favourite before the bout, with outside markets clustering around the mid-70s to high-70s implied win range, while Polymarket reference pricing was also heavily one-sided; tale-of-the-tape data show a 7-2 fighter with a size and reach edge over Guilherme Pat, who entered 6-1.[2][15][16] In practice, a 100% market often reflects either very thin opposing liquidity or traders assuming the official outcome is effectively locked in, but the contract still depends on UFC confirmation, not the crowd’s consensus.[8][17]

For traders, the main catalysts are the official result announcement, any post-fight overturn or no-contest ruling, and whether the bout was completed within the settlement window. UFC and event listings placed the fight on the card for 8 August 2026, with the market also allowing a 50-50 outcome if the bout is cancelled, not scored, or postponed beyond 22 August 2026.[5][6][8] A recent bout report stated that Asplund won by unanimous decision, which would align the contract with a straightforward Asplund resolution if UFC confirms the same result.[14]

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 PolyGram, 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.

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%.