Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
53% | 47% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
53% | 47% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Spain | 53% |
| Draw | 34% |
| Belgium | 14% |
Market context
Spain and Belgium face off in the 2026 FIFA World Cup quarter-final on 10 July, with the second-half result market currently pricing a 53% chance that Spain outscore their opponent after the break. Historically, these nations are evenly matched at this tournament, having met twice in World Cup history with one victory each and no losses, creating a tight statistical baseline for the current probability [2][4]. Their last encounter in 1990 ended 2-1 to Spain, while a 2010 qualifier saw a 5-0 Spanish rout, suggesting Spain often dominates later stages when facing Belgium, though the 2026 quarter-final context introduces fresh tactical variables that temper reliance on past blowouts [5][6].
Traders should monitor live second-half stoppage time and real-time funding rates on crypto exchanges, as whale flows into USDC-settled sports contracts often spike when on-chain volume exceeds $10m in a single hour [1]. With the settlement window closing at 19:00 UTC today, any postponement keeps the market open, making the 3:00 PM ET kickoff time critical for position management [3]. Recent team news indicates Belgium trained ahead of the match, but no major injury announcements have altered the pre-game odds significantly, meaning the 53% implied probability likely reflects Spain’s historical quarter-final resilience rather than a sudden shift in squad strength [7][8].
Methodology
This page reads Spain vs. Belgium - Second Half Result 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.
FAQ
- 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.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- How does UMA secure the resolution?
- The UMA Optimistic Oracle uses a bond system: a proposer posts a bond, a two-hour challenge window opens. On dispute the losing side forfeits the bond — financial incentive for honest resolution.
- How volatile are crypto prediction markets?
- Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.
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