Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket UK Pick polygram.ink |
31% | 69% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket UK → |
Polymarket polymarket.com |
31% | 69% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket UK → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Polymarket UK.
Active sub-markets
| O'Malley to win by KO/TKO? | 31% YES | 70% NO |
| Fight won by submission? | 6% YES | 94% NO |
| O/U 0.5 Rounds | 72% Over | 28% Under |
| Aiemann Zahabi vs. Sean O'Malley | 23% Aiemann Zahabi | 78% Sean O'Malley |
| Fight to Go the Distance? | 59% YES | 41% NO |
| Fight won by KO/TKO? | 34% YES | 66% NO |
Market context
Aiemann Zahabi faces Sean O'Malley in a bantamweight contest scheduled for 14 June 2026 at UFC Freedom 250. The market currently prices Zahabi's victory at 31 per cent on Polymarket, implying O'Malley is favoured at roughly 69 per cent. Settlement occurs on-chain via USDC conditional tokens on Polygon, with the 50-50 resolution pathway activated if the bout ends in a draw, technical draw, no contest, or cancellation beyond 28 June.
O'Malley's elevated probability reflects his established ranking and recent form within the bantamweight division. Zahabi, whilst a credible striker with technical proficiency, carries less mainstream recognition in prediction markets despite competing at elite level. Historical bantamweight matchups involving ranked challengers against established contenders typically see the favoured fighter priced between 60–75 per cent, placing this contract within expected parameters. The 31 per cent floor for Zahabi suggests traders view the matchup as genuinely competitive rather than dismissive of his chances.
Traders should monitor official UFC injury announcements and weigh-in confirmations in the week preceding the event, as both fighters' conditioning and camp reports influence late-market movement. The event's positioning as a co-main or main card bout affects fight duration expectations and knockout probability, which historically shift conditional token pricing. Any schedule changes or fighter withdrawals would trigger the 50-50 resolution clause, a material risk given the June 2026 window. Current on-chain liquidity and bid-ask spreads on Polygon will determine execution costs for position entry or exit.
Methodology
This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket UK, which mirrors the Polymarket order book directly.
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 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 UK?
- Zero. Polymarket 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.
Trade UFC Freedom 250: Aiemann Zahabi vs. Sean O'Malley (B… on Polymarket UK
Live order book, 0% fees, USDC settlement in seconds.
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