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

Platform comparison

Market context

Steven Asplund vs Guilherme Pat is lined as a heavyweight bout on the UFC Fight Night main card, and Polymarket has this contract priced at **100% YES** for Asplund, which means the market is treating the bout as effectively settled in his favour before official UFC confirmation. The contract resolves from the UFC’s official result, with the usual contingencies for a draw, no contest, cancellation or postponement beyond the stated settlement window, so a final read depends on the bout actually being contested and scored. [1][2]

The current price is best read against a broader pattern of heavyweight markets where one fighter is installed as a strong sportsbook favourite but still has to clear the volatility of a short, single-result contest. Recent preview pages put Asplund around the mid-to-high -200s, with one listing at -298 and another at -290, while Guilherme Pat has been priced in the +220 to +240 range, implying a clear favourite but not a shutout. That matters on Polymarket because a 100% YES price leaves no room for late correction if the fight is moved, ruled a no contest, or resolved differently from the expected result. [14][17][6]

The main catalysts to watch are official UFC bout status, the published start time, and any last-minute card reshuffles around the Meta APEX event in Las Vegas. Independent listings place the fight on 8 August 2026, with one UFC results page already reflecting the matchup and another previewing it as a preliminary heavyweight bout, so traders should focus on whether the UFC formally posts a winner after the bell and whether the bout is still on the card at the settlement cutoff. [1][13][9]

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

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

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.

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.

Do I need to KYC for this market?

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