UFC Fight Night: Diego Ferreira vs. Billy Quarantillo (Lightweight, Main Card)

Platform comparison

Market context

Diego Ferreira against Billy Quarantillo is a lightweight main-card bout on UFC Fight Night, and the market is effectively treating it as a binary Ferreira win. That is notable because the sportsbook consensus is much less extreme: the average line across tracked books is around Ferreira -170 to -175, which translates to roughly 63–64% implied win probability, while Quarantillo sits near +145 to +151.[5][6] By comparison, the market’s 100% yes price is far above both the betting market and most analyst-style model outputs, so it is carrying almost no visible room for upset or operational uncertainty.

The matchup data point to a closer contest than the market price suggests. Ferreira’s edge is in submission threat and overall finishing profile, with more career submission wins and a higher submission rate, while Quarantillo brings higher pace, more significant strikes landed per minute, and stronger recent striking volume metrics.[1][8][14] Recent previews have also framed Ferreira as the side with the cleaner technical advantages, but not a lock; multiple outlets have him only in the low-to-mid 60s on implied probability, which is consistent with a moderate favourite rather than a near-certainty.[12][13]

For traders, the main catalysts are official bout status, weigh-in completion, and any late injury or medical change before the UFC hands down the result. The market also has a built-in contingency: if the fight is cancelled, postponed beyond 22 August 2026, or ruled a no contest, it resolves 50-50 rather than to either fighter.[1] With the settlement window ending shortly after the event, the key dependency is whether the fight reaches the cage and receives an official UFC result, because that determines whether the current all-in Ferreira pricing is justified or simply too stretched.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track UFC Fight Night: Diego Ferreira vs. Billy Quarantillo (Lightweight, 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

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

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 Kalshi vs Polymarket. 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.

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.

Do I need to KYC for this market?

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