1. FC Cologne vs. Real Sociedad San Sebastian - Exact Score

Platform comparison

Market context

1. FC Köln and Real Sociedad are meeting in a summer club friendly, and that matters for the exact-score book because these matches often feature rotation, slower defensive intensity, and limited tactical risk compared with league football. Recent form points to goals at both ends: Köln’s last listed results include a 2-2 draw and a 8-0 win, while Real Sociedad’s recent run includes a 2-1 loss to Toulouse, a 4-2 win at Aston Villa, and two 1-1 draws earlier in May.[1][2][5]

For a platform comparison, the current 0% crowd-implied YES on Polymarket is best read as a pricing out of a very specific scoreline rather than a view that the match will be goalless. On Betfair, Smarkets, or Kalshi-style venues, traders would normally see the same idea expressed more naturally through decimal odds or a laid price rather than an implied-probability label, so a “0%” screen can look more absolute than the actual market depth suggests. That distinction matters on exact-score markets because probability is typically fragmented across many outcomes, with “Any Other Score” often absorbing most of the tail risk; friendlies with flexible substitutions and uneven line-ups tend to amplify that dispersion.[4][5]

The main catalysts to watch are line-up announcements, any late schedule change, and whether the clubs treat the fixture as a full 90-minute test or a shortened/trial format, since the settlement depends on the final score regardless of format so long as the match is played.[1] Real Sociedad’s official fixtures page and live-score listings were still tracking the game as scheduled, and the presence of live coverage from major score providers suggests the key risk is not cancellation but late team-news drift before kick-off.[2][16] On fee structure and access, Betfair and Smarkets typically charge commission on winnings, while Polymarket and Kalshi use market pricing without the same exchange-style commission model; KYC reach also differs, with regulated exchange access and US availability usually tighter than on crypto-native venues, which can affect who is actually able to take the other side.[1][2]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares 1. FC Cologne vs. Real Sociedad San Sebastian - Exact Score specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

What does Polymarket cost vs Kalshi?

Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.