1. FC Cologne vs. Real Sociedad San Sebastian - More Markets

Platform comparison

Market context

1. FC Cologne v Real Sociedad is trading on Polymarket as a **Club Friendlies** contract settled through USDC-backed, Polygon-based conditional tokens, and today’s crowd price of **95% YES** leaves very little room for a late surprise in the market mechanics. In practice, that means traders are overwhelmingly leaning to the contract’s stated outcome rather than trying to price the match in abstract terms, with the market already treating the event as almost fully priced in.

For context, that level is far above the broader pre-match view on the game itself: outside prediction sites have generally framed this as a closer friendly, with Real Sociedad only a narrow favourite and modelled win chances typically in the low-to-mid 40s rather than anything resembling a near-certainty.[1][3][5] That gap matters because friendly fixtures often produce heavy rotation, shorter cameo minutes, and uneven intensity, which can make the on-pitch result noisier than the market headline suggests. Comparable previews also point to open game states and scoring volatility, which is typical of summer tests rather than competitive fixtures.[1][13]

The main catalysts traders should watch are team-news confirmations, last-minute squad changes, and whether either club treats the match as a full-strength rehearsal or a minutes-management exercise. Polymarket’s settlement window runs to 2026-08-07T16:00:00Z, so any late updates on availability, line-ups, or schedule changes could matter more than the baseline pre-season form. Recent previews noted at least one Sociedad defensive absence and broadly expected rotation on both sides, reinforcing that the contract is being priced against a friendly-specific information set rather than a stable league-style baseline.[1]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

UK Frequently Asked Questions

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Alternative UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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%.