Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
54% | 46% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
54% | 46% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Rayo Vallecano de Madrid 1 - 0 Deportivo Alavés | 54% |
| Any Other Score | 25% |
| Rayo Vallecano de Madrid 1 - 1 Deportivo Alavés | 20% |
| Rayo Vallecano de Madrid 2 - 0 Deportivo Alavés | 14% |
| Rayo Vallecano de Madrid 2 - 1 Deportivo Alavés | 6% |
| Rayo Vallecano de Madrid 3 - 2 Deportivo Alavés | 5% |
| Rayo Vallecano de Madrid 1 - 2 Deportivo Alavés | 3% |
| Rayo Vallecano de Madrid 3 - 0 Deportivo Alavés | 2% |
| Rayo Vallecano de Madrid 1 - 3 Deportivo Alavés | 2% |
| Rayo Vallecano de Madrid 2 - 2 Deportivo Alavés | 2% |
| Rayo Vallecano de Madrid 3 - 1 Deportivo Alavés | 2% |
| Rayo Vallecano de Madrid 2 - 3 Deportivo Alavés | 2% |
| Rayo Vallecano de Madrid 0 - 1 Deportivo Alavés | 1% |
| Rayo Vallecano de Madrid 0 - 0 Deportivo Alavés | 0% |
| Rayo Vallecano de Madrid 0 - 2 Deportivo Alavés | 0% |
| Rayo Vallecano de Madrid 0 - 3 Deportivo Alavés | 0% |
| Rayo Vallecano de Madrid 3 - 3 Deportivo Alavés | 0% |
Market context
Rayo Vallecano will host Deportivo Alavés on 20 August 2026 in a La Liga fixture kicking off at 3:00 PM ET. The market settles on the exact final score after 90 minutes plus stoppage time, with any scoreline not explicitly listed resolving to "Any Other Score." On Polymarket, the contract currently shows 0% implied probability across all listed outcomes, a signal that either liquidity remains sparse ahead of the fixture or traders are awaiting deeper information before committing USDC to conditional tokens on Polygon.
Exact-score markets in La Liga typically cluster around the most common results. Historical data from recent seasons shows that 1–1 draws and 1–0 home victories account for roughly 25–30% of all La Liga matches combined, whilst scorelines above 3–2 become progressively less likely. Rayo Vallecano averaged 1.6 goals per home match in the 2024–25 season, whilst Alavés conceded 1.4 per away fixture; these figures suggest modest scoring volume, favouring lower-scoring outcomes over high-variance results.
Traders should monitor team news in the week preceding the match, particularly injury updates to key attacking or defensive personnel at either club. Fixture congestion in late August—when European qualification rounds may still be ongoing—can affect squad rotation decisions. The settlement window closes at 19:00 UTC on 20 August, giving traders roughly 16 hours after kick-off to settle positions once the final whistle confirms the result.
Methodology
This page reviews Rayo Vallecano de Madrid vs. Deportivo Alavés - Exact Score across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi UK, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
UK Frequently Asked Questions
- 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.
- 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%.
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