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 compete in a bantamweight bout at UFC Fight Night on 30 May 2026. The market resolves to the officially declared winner, with a 50-50 settlement if the bout ends in a draw, no contest, or is postponed beyond 13 June 2026. Current implied probability sits at 0%, suggesting either minimal trading activity or strong consensus backing one fighter—a condition worth stress-testing against historical precedent before committing conditional orders.

Figueiredo enters as a former two-time UFC flyweight champion with extensive title-fight experience, though moving up to bantamweight introduces variables absent from his 125-pound record. Song, a top-ranked bantamweight contender, has competed consistently at this weight class and holds recent wins over quality opposition. Historical matchups between former champions moving up in weight and established divisional contenders show mixed outcomes; the weight-class transition often neutralises experience advantages. Traders should model this as a genuine competitive fixture rather than a one-sided affair, particularly given Figueiredo's championship pedigree.

Key catalysts include official fighter health confirmations, any late-notice weight-cut issues, and UFC scheduling announcements. The settlement window closes 31 May at 03:59:59 UTC, allowing roughly 24 hours post-fight for official UFC declaration. Programmatic traders should set monitoring for UFC.com official results and cross-reference against athletic commission filings. Any injury withdrawal or rescheduling announcement would trigger the 50-50 resolution clause, making pre-fight injury reports critical data points for conditional order logic.

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

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

Where can I trade this market with the lowest fees?

On Polymarket App 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.

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, Polymarket App 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.