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

Platform comparison

Market context

Diego Ferreira’s lightweight bout with Billy Quarantillo has been priced as a clear Ferreira lean on the sportsbook side, with an average line around **-170 to -175** and an implied win probability in the low-to-mid **60s%**. By contrast, the prediction market is sitting at **100% YES**, which implies either a fully locked-in contract after the fight result has been effectively absorbed, or a market that is valuing the official UFC outcome as near-certain once the bout is complete; that is a much steeper stance than the books or most pre-fight models. [5][6][14]

The historical frame is straightforward: Quarantillo’s profile is built on volume, with higher significant-strike output and stronger takedown and submission activity in the published pre-fight data, while Ferreira’s edge has traditionally been cleaner finishing routes and enough grappling to threaten submissions. Recent comparison pages also show Ferreira with the better straight win projection, but not by anything close to a certainty; analyst-style cards and sportsbook consensus cluster around Ferreira rather than unanimity, which makes a 100% market reading more extreme than the underlying form guide. [2][3][9][11]

For traders, the key catalyst is the **official UFC result**, since this market resolves only on the sanctioned winner announcement and can still flip to **50-50** if the bout is ruled a draw, no contest, or is not scored. The main dependency is whether the fight actually reaches an official decision or finish on the scheduled card; any late cancellation or postponement beyond the contract window would also force the fallback outcome. Comparable UFC preview pieces were still treating Ferreira as the favourite on fight day, but the live binary for this contract is the referee and commission outcome, not pre-fight opinion. [5][19][20]

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

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 Best Prediction Markets trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.