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

Platform comparison

Active sub-markets

Market context

Bruno Silva and Édgar Cháirez are scheduled to compete in a flyweight preliminary bout at UFC Fight Night: Muhammad vs. Bonfim on 6 June 2026. The winner will be determined by judges' scorecards, submission, knockout, or technical stoppage. Settlement closes shortly after the event concludes, with a 50-50 resolution triggered if the bout ends in a draw, no contest, or cancellation beyond 20 June.

Preliminary-card matchups at UFC Fight Night events historically carry compressed odds across platforms, reflecting lower liquidity and tighter information asymmetries than main-card fixtures. Polymarket's current 0% implied probability on Silva suggests either minimal trading activity or a sharp consensus favouring Cháirez; Kalshi and Betfair typically display wider spreads on regional preliminaries, where fee structures (Polymarket's 2% settlement fee versus Betfair's commission-based model) can shift break-even thresholds. Smarkets' decimal-odds interface occasionally reveals mispricing on low-volume fights when compared to percentage-based platforms, particularly where casual traders cluster positions.

Traders should monitor official UFC weigh-in results on 5 June, which confirm both fighters' eligibility and conditioning. Recent injury announcements or late withdrawals—common at preliminary level—would trigger immediate resolution conditions. The bout's placement on the preliminary card means limited pre-fight media coverage; fighter social media activity and training-camp updates from MMA journalists remain the primary catalysts for probability shifts. Any postponement announcement would extend the settlement window to 20 June, creating arbitrage opportunities across platforms with differing contingency assumptions.

Methodology

This page compares UFC Fight Night: Bruno Silva vs. Édgar Cháirez (Flyweight, Prelims) specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to Polymarket Alternative UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). Polymarket Alternative UK routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket Alternative UK, 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.

What does it cost to trade on Polymarket Alternative UK?

Zero. Polymarket Alternative UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.

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.