Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Review UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| $75 | 100% |
| $74 | 100% |
| $73 | 100% |
| $72 | 100% |
| $82 | 0% |
| $81 | 0% |
| $80 | 0% |
| $79 | 0% |
| $78 | 0% |
| $77 | 0% |
| $76 | 0% |
Market context
WTI crude oil futures are trading near the mid-70s, so the market resolves on whether the August settle finishes above the selected strike, not on intraday spikes. Current reporting shows front-month WTI around $74.4-$74.6, while the contract’s settlement method is the nearest listed month rolling forward before expiry, which is what programme-driven traders need to map into their rules and data feed logic.[1][6][7]
Recent comparables help explain why the implied 0% YES can persist if the strike sits above the prevailing close: WTI has just been in a three-day slide as easing Middle East supply fears reduced the risk premium, with Reuters-derived coverage noting WTI at $74.63 and below $75 on 5 August.[6] At the same time, public price pages have shown material dispersion across sources and timestamps, which is a reminder that automated strategies should use the market’s exact settlement source rather than a generic spot quote.[1][2][3]
For catalysts, traders should watch the next US petroleum inventory releases, any OPEC+ commentary, and headlines on Strait of Hormuz shipping, because those are the kinds of inputs that can move the front month quickly enough to change a close-above outcome.[6][19] In a hands-on workflow, that usually means polling a live futures feed, comparing it with the market’s strike, and triggering conditional orders only after the relevant settlement window and contract roll rules are satisfied.[7][19]
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Review UK, which mirrors the Polymarket order book directly.
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.
UK Frequently Asked Questions
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
Trade WTI Crude Oil (WTI) closes above … on August 5? on Polymarket Review UK
Live order book, 0% fees, USDC settlement in seconds.
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