Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Kalshi UK Pick polygram.ink |
1% | 99% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Kalshi UK → |
Polymarket polymarket.com |
1% | 99% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Kalshi UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Kalshi UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Kalshi UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Kalshi 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 Kalshi UK.
Active sub-markets
| Shavkat Rakhmonov | 1% YES | 100% NO |
| Kamaru Usman | 1% YES | 99% NO |
| Fighter A | — | |
| Fighter B | — | |
| Fighter D | — | |
| Fighter E | — | |
Market context
The UFC welterweight division will crown a champion sometime between now and 31 December 2026, and Polymarket currently prices the probability that this champion will be a specific individual at just 1% in YES tokens. This implies the market expects either a vacant belt at year-end or that the eventual champion is so uncertain that no single fighter commands meaningful odds. The contract settles only on an official, undisputed champion—interim belts do not qualify—making championship vacancies a genuine settlement pathway worth monitoring.
Historical precedent suggests welterweight volatility. Kamaru Usman held the belt from 2019 to 2023 before losing to Leon Edwards, who then lost to Belal Muhammad in November 2023. Muhammad's reign has already seen injury delays and scheduling complications typical of the division. The 1% pricing reflects genuine uncertainty about who occupies the throne in two years' time, given that injuries, retirements, and upset losses reshape welterweight faster than heavier divisions. A fighter currently ranked outside the top five could plausibly hold the belt by 2026's end.
Traders should track UFC scheduling announcements, particularly title defences and interim title bouts, which signal championship trajectory. Injuries to Muhammad or his challengers—Shavkat Rakhmonov and Colby Covington are current contenders—could accelerate or delay title shots. The UFC's December 2024 and 2025 fight cards will reveal whether Muhammad's reign stabilises or fractures. Conditional token mechanics on Polygon mean positions can be hedged against championship vacancies, a material consideration given the division's recent instability.
Methodology
We track Who will be UFC Welterweight champion at the end of 2026? 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?
- Kalshi 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 Kalshi UK?
- Zero. Kalshi 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.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, Kalshi UK triggers a quick verification flow that finishes in minutes.
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