Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 | 100% |
| O/U 1.5 | 100% |
| O/U 2.5 | 100% |
| O/U 3.5 | 100% |
| Both Teams to Score | 100% |
| Both Teams to Score in First Half | 100% |
| 1st Half O/U 0.5 | 100% |
| 1st Half O/U 1.5 | 100% |
| Portland Timbers O/U 0.5 | 100% |
| Portland Timbers O/U 1.5 | 100% |
| Portland Timbers O/U 2.5 | 100% |
| Club Tijuana O/U 0.5 | 100% |
| Portland Timbers 1st Half O/U 0.5 | 100% |
| Club Tijuana 1st Half O/U 0.5 | 100% |
| 2nd Half O/U 0.5 | 99% |
| 2nd Half O/U 1.5 | 99% |
| Portland Timbers 2nd Half O/U 0.5 | 99% |
| Portland Timbers 2nd Half O/U 1.5 | 99% |
| Portland Timbers (-1.5) | 95% |
| Both Teams to Score in Second Half | 50% |
| 2nd Half O/U 2.5 | 50% |
| Club Tijuana 2nd Half O/U 0.5 | 50% |
| Club Tijuana 2nd Half O/U 1.5 | 50% |
| Portland Timbers (-2.5) | 9% |
| O/U 4.5 | 9% |
| Club Tijuana O/U 1.5 | 4% |
| Club Tijuana (-1.5) | 2% |
| Club Tijuana (-2.5) | 2% |
| O/U 5.5 | 2% |
| Club Tijuana O/U 2.5 | 2% |
| 1st Half O/U 2.5 | 0% |
| Portland Timbers 1st Half O/U 1.5 | 0% |
| Club Tijuana 1st Half O/U 1.5 | 0% |
Market context
The Portland Timbers will face Club Tijuana in a Leagues Cup fixture on 13 August at 10:30 PM ET. Polymarket has priced conditional tokens for additional markets around this matchup at 95% YES, reflecting near-certainty that supplementary betting contracts will settle as written. On-chain, this means USDC collateral locked on Polygon is trading at a steep premium, with the spread between YES and NO tokens compressed to single-digit basis points. Traders holding either side face minimal payout variance if the game proceeds as scheduled.
Historical precedent suggests Leagues Cup matches rarely cancel outright. Since the tournament's expansion in 2023, fixture abandonment has occurred in fewer than 2% of scheduled games, typically only following extreme weather or security incidents. The 2024 edition saw all 32 group-stage matches complete, establishing a pattern that Polymarket's 95% probability reflects accurately. Portland's home venue at Providence Park and Tijuana's travel logistics present no documented complications for August fixtures.
The settlement window closes 14 August at 02:30 UTC, allowing roughly 26 hours post-kickoff for market resolution. Key dependencies include official Leagues Cup confirmation of the fixture (last updated mid-July with no postponement notices), weather forecasts for Portland in the 48 hours prior, and any late squad availability issues. MLS injury reports typically release 72 hours before matches; traders should monitor both clubs' official channels for unexpected withdrawals that might trigger fixture rescheduling, though such occurrences remain rare within this competition's operational history.
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 Kalshi 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
- 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 Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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%.
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