San Jose Earthquakes vs. St. Louis City SC

Platform comparison

Market context

San Jose Earthquakes host St. Louis City SC on Saturday, 15 August 2026, in an MLS regular-season fixture. The 0% implied probability reflects either a technical settlement condition or an absence of trading activity rather than market conviction about the match outcome itself. Settlement closes shortly after the final whistle, leaving minimal window for late movement.

The Earthquakes and City SC have met twice in MLS play since the latter's inaugural 2023 season. San Jose's home record against expansion or newly competitive sides has historically favoured the established franchise, though St. Louis has stabilised as a mid-table competitor. When markets show extreme probabilities (0% or 100%) in sports fixtures, the typical driver is either a specific settlement criterion—such as a requirement for a particular result type—or dormant order books awaiting fresh liquidity. Neither team's recent form or injury news as of early August 2026 would ordinarily justify such an edge.

Traders should monitor team news through Friday, particularly squad availability and any late tactical announcements. MLS fixtures occasionally shift in competitive intensity based on playoff positioning or rest rotation, especially late in the regular season. The settlement window's tight closure (within hours of kick-off) means any significant team news—a key player withdrawal or unexpected lineup change—could trigger repricing if the market activates. Current odds suggest this market may simply lack active participation rather than reflecting settled expectations.

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 Prediction Today, 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.

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%.