UFC Fight Night: Bruno Silva vs. Édgar Cháirez (Flyweight, Prelims)

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Market context

Bruno Silva, a Brazilian flyweight, faces Édgar Cháirez at UFC Fight Night: Muhammad vs. Bonfim on 6 June 2026. The bout sits on the preliminary card, a positioning that typically attracts lower trading volume and wider probability spreads across platforms. Settlement depends on official UFC scorecards or stoppage rulings, with the window closing shortly after the event concludes.

The 0% implied probability reflects either minimal market liquidity on this specific pairing or genuine uncertainty about Silva's participation. Preliminary-card flyweight matchups often see sparse cross-platform consensus; traditional sportsbooks may not have posted lines, whilst prediction markets frequently show extreme probabilities when order flow is thin. Historical precedent suggests preliminary bouts carry elevated cancellation and postponement risk—injuries, weight-cut complications, or card restructuring affect lower-billing fights disproportionately. The 20 June deadline for postponement resolution provides a two-week buffer, though most UFC cancellations surface within 48 hours of fight time.

Traders should monitor UFC official announcements regarding fighter health status and weigh confirmations from Silva's camp or Cháirez's representatives. Recent UFC Fight Night cards have seen preliminary changes at higher rates than numbered events, particularly in lighter divisions where fighter turnover is steeper. Any injury reports or late-notice replacement news would shift the No Contest probability substantially. Absence of pre-fight media activity or official fighter confirmations closer to the event date would signal elevated postponement risk, warranting reassessment of the current extreme probability distribution.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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.

FAQ

Where can I trade this market with the lowest fees?

On Best Prediction Markets, which mirrors the Polymarket order book at 0% fees. 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?

Not under $1,500 of lifetime trading volume. Above that threshold, Best Prediction Markets triggers a quick verification flow that finishes in minutes.

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.