Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) Pick polygram.ink (preferred broker) |
16% | 84% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
16% | 84% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Spain 1 - 1 Argentina | 16% |
| Spain 1 - 0 Argentina | 12% |
| Spain 0 - 0 Argentina | 11% |
| Spain 0 - 1 Argentina | 9% |
| Spain 2 - 0 Argentina | 9% |
| Spain 2 - 1 Argentina | 9% |
| Spain 1 - 2 Argentina | 7% |
| Spain 2 - 2 Argentina | 6% |
| Spain 0 - 2 Argentina | 5% |
| Any Other Score | 5% |
| Spain 3 - 0 Argentina | 4% |
| Spain 3 - 1 Argentina | 4% |
| Spain 2 - 3 Argentina | 3% |
| Spain 1 - 3 Argentina | 2% |
| Spain 3 - 2 Argentina | 2% |
| Spain 0 - 3 Argentina | 1% |
| Spain 3 - 3 Argentina | 1% |
Market context
Spain and Argentina will meet in a FIFA World Cup 2026 semifinal on 19 July 2026 at 3:00 PM ET, with the market settling on the exact score after 90 minutes of regulation plus stoppage time, excluding extra time and penalties. The crowd-implied probability for the listed outcome sits at 11% YES, a figure that diverges notably from major sportsbooks, which typically price specific exact-score contracts in this fixture at 6–8%, while analyst consensus on comparable World Cup knockout matches suggests a 9–10% range for any single exact score.
Historically, World Cup semifinals between these nations have been tight: their only prior World Cup meeting ended 1–0 in 1986, and recent Finalissima preparations in 2026 were cancelled due to stadium disputes, leaving no fresh head-to-head data to recalibrate probabilities [3]. In knockout football, exact-score markets for elite matchups rarely exceed 12% unless one side is heavily favoured, making the current 11% line slightly elevated against the sportsbook baseline and suggesting either liquidity-driven pricing or a niche view on a low-scoring draw.
Traders should monitor final squad announcements and any late injury updates for key attackers such as Lionel Messi’s successors and Spain’s midfield core, as well as the confirmed venue in Arlington, Texas, which can influence pitch conditions and scoring tempo. No major roster changes have been reported as of 16 July, but FIFA’s official team lists are expected within 24 hours of kick-off, a critical dependency for exact-score contracts [4].
Methodology
We track Spain vs. Argentina - Exact Score 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
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.
FAQ
- 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 Kalshi vs Polymarket. 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.
- 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.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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