1. FC Cologne vs. Real Sociedad San Sebastian

Platform comparison

Market context

1. FC Köln and Real Sociedad are scheduled to meet in a summer club friendly at the RheinEnergieSTADION, with the official club announcement placing the game on 8 August 2026 at 15:30 local time and noting a closed-door tune-up the previous evening.[2] That timing matters for a prediction market because this contract settles against the real-world fixture state rather than a season-long table, so late changes in squad selection, travel plans or minute shifts to kick-off can be decisive for on-chain resolution. The market’s 99% YES pricing therefore reflects near-consensus that the match is indeed taking place, not a view on the result.

Comparable framing points to a modest favourite profile for Real Sociedad rather than a pure formality. Pre-match model work has the Spanish side ahead on expected goals and 90-minute win probability, while still leaving meaningful draw and Köln win chances because friendlies are often shaped by rotation, substitutions and lower intensity than competitive fixtures.[1][12] The clubs’ only listed competitive meeting came in the 1988/89 UEFA Cup, when Real Sociedad won the first leg 1-0, but that is more historical colour than a strong predictor for a pre-season fixture almost four decades later.[8]

For traders, the main catalysts are line-up announcements, whether the public fixture remains unchanged after the closed-door session, and any official confirmation of squad members such as those referenced in club coverage and match previews.[2][5][15] Because settlement is in USDC on-chain, the practical risk is less about football consensus and more about whether the exact event named in the contract is the one that actually occurs; if the friendly is rescheduled or replaced, the market can reprice quickly even if the sporting expectation stays stable. Broader BTC and ETH market moves are only relevant here insofar as they affect liquidity, funding and risk appetite across prediction venues, not the football outcome itself.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reads 1. FC Cologne vs. Real Sociedad San Sebastian on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

UK Frequently Asked Questions

Why USDC and not ETH or USDT?

USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.

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