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

Platform comparison

Market context

Polymarket is pricing the **More Markets** contract for Köln v Real Sociedad at **100% YES**, which means the market is treating at least one qualifying sub-market as effectively certain on the current information. On Polymarket, the position is held in USDC and settles through conditional tokens on Polygon, so the only thing that matters is whether the exchange’s specified condition is met by the settlement window, not which side wins the friendly in the abstract.[17]

The broader frame is that this is a late-summer club friendly between a Bundesliga side and the Spanish Cup holders, with the official Köln club site confirming the matchup at RheinEnergieStadion and noting it is the headline test of pre-season.[4][13] Head-to-head history is thin but real: UEFA records show only one competitive meeting, in 1988/89, when Real Sociedad edged Köln 1-0 at home and the tie finished with one win each and one draw across the two legs.[6][8] That kind of sparse sample is typical of friendlies, where rotation and trial line-ups matter more than legacy head-to-head results, and it helps explain why traders tend to lean on event structure rather than team reputation alone.[14][17]

The main catalysts are straightforward: confirmed team news, whether either club changes line-up plans, and any schedule compression created by the double-header in Cologne, since Köln’s own announcement says the two sides also tested behind closed doors the evening before.[4] That arrangement increases the chance of heavy rotation and makes official squad updates more relevant than normal pre-season form; Fox Sports also noted Kubo in Real Sociedad’s squad and a minor surgery absence for Guedes, showing how quickly availability news can move expectations even in a low-stakes fixture.[11]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track 1. FC Cologne vs. Real Sociedad San Sebastian - More Markets across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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

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 Kalshi 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%.