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 winner will be determined by judges' scorecard, knockout, submission, or technical stoppage. Settlement occurs within four days of the event, with any cancellation, postponement beyond 13 June, or official draw resolving the market at 50-50 odds.

Song, a Chinese striker ranked in the bantamweight top ten, carries a record of technical precision and volume striking. Figueiredo, the former UFC flyweight champion, moved up to bantamweight following title losses at 125 pounds and has faced mixed results at the higher weight class. Historical precedent suggests that former champions transitioning upwards encounter variance: Figueiredo's two bantamweight bouts since 2023 produced one decision loss and one victory, establishing no clear trajectory. Song's recent form includes wins over mid-tier opposition, though he has not faced elite-ranked competition consistently. The 0% implied probability across platforms suggests either extreme uncertainty or insufficient liquidity rather than consensus dismissal of either fighter's chances.

Traders should monitor UFC injury reports and official weigh-in confirmations in the week preceding the event. Kalshi's binary structure and Polymarket's fractional odds will diverge on fee structures—Kalshi charges flat settlement fees whilst Polymarket applies percentage-based maker and taker fees—affecting effective odds for small and large positions differently. Betfair's decimal odds format and Smarkets' commission model offer alternative cost profiles. Any late withdrawal or medical suspension would trigger the 50-50 resolution clause, a material risk given the five-week lead time.

Methodology

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

Is this market available outside the US?

Kalshi Alternative 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.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Kalshi Alternative 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.