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

Platform comparison

Active sub-markets

Market context

Yuneisy Duben, a Cuban flyweight competitor, faces Jeisla Chaves in a preliminary bout at UFC Fight Night: Muhammad vs. Bonfim on 6 June 2026. The fight will be contested at 125 pounds and forms part of the card's undercard. Official UFC records will determine the settlement outcome; any draw, technical draw, no contest ruling, or cancellation beyond 20 June 2026 triggers a 50-50 resolution.

Preliminary bouts in UFC Fight Night events historically carry limited public betting liquidity and sparse pre-fight media coverage compared to main-card fixtures. Duben's record and recent performance trajectory relative to Chaves's form will shape trader conviction, yet such information often remains sparse until fight week. The 0% implied probability reflects either minimal market participation or strong consensus dismissal of one fighter's chances; either scenario warrants scrutiny of available fight metrics, injury reports, and weigh-in outcomes as settlement approaches.

From a regulatory standpoint, this market's accessibility depends on trader jurisdiction. Under German GlüStV provisions, prediction markets on sports outcomes face licensing requirements; UK-domiciled traders may access unregulated platforms with different compliance frameworks. US CFTC oversight applies to binary sports derivatives only in limited circumstances, leaving most prediction markets outside direct federal reach. Platforms offering no-KYC access up to $1,500 typically operate in regulatory grey zones; traders should verify their own tax residency obligations and reporting duties, as prediction market winnings remain taxable income in most jurisdictions regardless of KYC status.

Methodology

We track UFC Fight Night: Yuneisy Duben vs. Jeisla Chaves (Women's Flyweight, Prelims) on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Is this market available outside the US?

Polymarket Tax UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.

What does it cost to trade on Polymarket Tax UK?

Zero. Polymarket Tax 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.