Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket Legal UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket Legal UK → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket Legal UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket Legal UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket Legal UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket Legal 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 Legal UK.
Active sub-markets
| O'Malley to win by KO/TKO? | 100% YES | 1% NO |
| Fight won by submission? | 1% YES | 100% NO |
| O/U 0.5 Rounds | 100% Over | 0% Under |
| Aiemann Zahabi vs. Sean O'Malley | 1% Aiemann Zahabi | 100% Sean O'Malley |
| Fight to Go the Distance? | 1% YES | 100% NO |
| Fight won by KO/TKO? | 100% YES | 1% NO |
Market context
Sean O'Malley faces Aiemann Zahabi in a bantamweight bout scheduled for 14 June 2026 at UFC Freedom 250, headlined by Topuria versus Gaethje. The market currently prices Zahabi's victory at 31 per cent, implying O'Malley is favoured at 69 per cent. Settlement occurs within 24 hours of the official UFC result, with draw or cancellation triggering a 50-50 resolution.
Comparable bantamweight matchups involving O'Malley have historically traded with the champion or top-ranked contender receiving 60–75 per cent probability when facing unranked or lower-ranked challengers. Zahabi, though a respected technical striker with solid wrestling credentials, enters as the underdog in market pricing. O'Malley's recent form and ranking position—combined with his striking range and footwork advantages—align with the current 69 per cent implied probability for his victory. However, Zahabi's grappling and clinch control have posed problems for strikers in previous bouts, which may explain why the market has not compressed further toward O'Malley.
Traders should monitor UFC roster announcements and injury reports through early June 2026, as late withdrawals or replacements would trigger a No Contest resolution. Weigh-in results on 13 June will confirm both fighters' physical condition and hydration status. The settlement window closes 15 June at 03:59:59 UTC, allowing approximately 36 hours post-fight for official UFC scoring and any appeals. Under German GlüStV and US CFTC frameworks, this market remains accessible to traders in jurisdictions permitting sports prediction markets; no-KYC access up to $1,500 USD per account applies where permitted, though verification requirements vary by operator and user location.
Methodology
We track UFC Freedom 250: Aiemann Zahabi vs. Sean O'Malley (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
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Where can I trade this market with the lowest fees?
- On Polymarket Legal 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?
- Polymarket Legal 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 does it cost to trade on Polymarket Legal UK?
- Zero. Polymarket Legal 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.
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