UFC Fight Night: Song Yadong vs. Deiveson Figueiredo (Bantamweight, Main Card)

Platform comparison

Active sub-markets

Market context

Song Yadong and Deiveson Figueiredo are scheduled to meet in a bantamweight bout at UFC Fight Night on 30 May 2026. The fight carries a settlement window extending to 31 May 2026, with a technical backstop of 13 June 2026 for postponements. Resolution hinges on official UFC declaration; draws, no contests, and cancellations all trigger a 50-50 split rather than a binary outcome.

The 0% implied probability reflects genuine uncertainty rather than market dysfunction. Song, a Chinese striker ranked in the bantamweight top 15, has faced inconsistent form against elite competition, whilst Figueiredo—a former flyweight champion—moves up in weight class after a period of inactivity. Historical precedent suggests matchups between strikers transitioning between divisions and established regional contenders typically favour the fighter with recent fight time. Figueiredo's championship pedigree carries weight, but his last recorded bout was in 2023, introducing material rust variables that traders should model as non-trivial.

Programmatic traders should monitor UFC official announcements for fighter withdrawals or injury disclosures, which typically emerge 7–14 days pre-event. Weigh-in confirmation on 29 May 2026 serves as a hard dependency; failure to make weight would trigger reclassification or cancellation protocols. Conditional order logic should account for the 50-50 resolution clause—setting entry thresholds below 5% YES or above 95% YES creates asymmetric payoff structures. The settlement window's two-day buffer post-fight allows for scoring appeals or medical review, making real-time UFC.com verification essential for position closure.

Methodology

We track UFC Fight Night: Song Yadong vs. Deiveson Figueiredo (Bantamweight, Main Card) 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

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

Is this market available outside the US?

Polymarket Bot 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 Bot UK?

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

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Bot UK triggers a quick verification flow that finishes in minutes.