Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Scam?) Pick polygram.ink (preferred broker) |
78% | 22% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
78% | 22% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 | 78% |
| 2nd Half O/U 0.5 | 76% |
| Real Betis Balompié O/U 0.5 | 59% |
| Real Betis Balompié 2nd Half O/U 0.5 | 50% |
| Real Betis Balompié 2nd Half O/U 1.5 | 50% |
| Real Sociedad de Fútbol 2nd Half O/U 0.5 | 50% |
| Real Sociedad de Fútbol 2nd Half O/U 1.5 | 50% |
| Real Betis Balompié 1st Half O/U 0.5 | 49% |
| Real Sociedad de Fútbol 1st Half O/U 0.5 | 49% |
| Real Sociedad de Fútbol O/U 0.5 | 47% |
| O/U 1.5 | 44% |
| 2nd Half O/U 1.5 | 43% |
| Both Teams to Score | 28% |
| Both Teams to Score in Second Half | 26% |
| Real Betis Balompié O/U 1.5 | 21% |
| O/U 2.5 | 18% |
| 2nd Half O/U 2.5 | 18% |
| Real Betis Balompié (-1.5) | 13% |
| Real Sociedad de Fútbol O/U 1.5 | 12% |
| Real Sociedad de Fútbol (-1.5) | 6% |
| O/U 3.5 | 6% |
| Real Betis Balompié O/U 2.5 | 5% |
| Real Betis Balompié (-2.5) | 3% |
| Real Sociedad de Fútbol O/U 2.5 | 2% |
| Real Sociedad de Fútbol (-2.5) | 1% |
| O/U 4.5 | 1% |
| O/U 5.5 | 1% |
| Both Teams to Score in First Half | 0% |
| 1st Half O/U 0.5 | 0% |
| 1st Half O/U 1.5 | 0% |
| 1st Half O/U 2.5 | 0% |
| Real Betis Balompié 1st Half O/U 1.5 | 0% |
| Real Sociedad de Fútbol 1st Half O/U 1.5 | 0% |
Market context
Real Betis Balompié vs. Real Sociedad de Fútbol - More Markets. The market is currently pricing the outcome at 13% YES, meaning crowd-implied probability sits at that level. Settlement is scheduled for 2026-08-21T19:00:00Z. Unlike a sportsbook, the price you see is set by buyers and sellers competing in a live order book — there is no house edge or bookmaker margin to fade.
Sports outcome markets resolve from official league data once the contest finishes. Pricing typically tightens through the warm-up window as line-ups, weather, and starting-pitcher data become public, then moves on goals or runs in real time.
Watch for the underlying catalysts that move this category: each official announcement, dataset release, or scheduled milestone generally produces a step change in the implied probability. Trades execute instantly on Polygon, and shares pay $1 each at resolution if your side wins.
Methodology
We track Real Betis Balompié vs. Real Sociedad de Fútbol - 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 Polymarket Scam?. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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%.
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