UFC Fight Night: Yuneisy Duben vs. Jeisla Chaves (Women's Flyweight, Prelims)

Platform comparison

Active sub-markets

Market context

Yuneisy Duben, a Cuban flyweight competing in the UFC's preliminary card, faces Jeisla Chaves on 6 June 2026 at UFC Fight Night: Muhammad vs. Bonfim. The bout is scheduled for the early prelims, meaning it will air before the main card and carry less promotional visibility than headliner slots. Resolution hinges on official UFC scorecards or stoppage; any draw, technical draw, no-contest ruling, or postponement beyond 20 June triggers a 50-50 settlement.

The 0% implied probability across prediction markets reflects the absence of public betting information on either fighter at major sportsbooks. Preliminary card matchups, particularly those involving less-established international competitors, often see minimal market liquidity until fight week when sharper bettors enter. Historical patterns show that flyweight prelim bouts without established sportsbook lines frequently remain illiquid in prediction markets until 48 hours before the event, at which point injury reports, weight-cut complications, or late-notice replacements can shift odds materially. Comparable UFC Fight Night preliminary bouts have occasionally been cancelled or rescheduled due to regulatory issues or fighter withdrawals.

Traders should monitor UFC official announcements regarding fighter confirmations and any schedule changes through early June. The preliminary card status means limited pre-fight media coverage; confirmation that both fighters have completed official weigh-ins on 5 June will be a key catalyst. Any injury reports or late-notice opponent changes would likely trigger market movement from the current zero baseline. Settlement window closure at 03:59 UTC on 7 June allows roughly 24 hours post-fight for official UFC results to be published and verified.

Methodology

This page reviews UFC Fight Night: Yuneisy Duben vs. Jeisla Chaves (Women's Flyweight, Prelims) across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Best Prediction Markets UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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

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 Best Prediction Markets UK?

Zero. Best Prediction Markets 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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Best Prediction Markets UK 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.