Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| O/U 0.5 | 100% |
| CA Tucumán O/U 0.5 | 100% |
| 2nd Half O/U 0.5 | 100% |
| CA Tucumán 2nd Half O/U 0.5 | 100% |
| AA Estudiantes O/U 0.5 | 50% |
| AA Estudiantes O/U 1.5 | 50% |
| AA Estudiantes O/U 2.5 | 50% |
| CA Tucumán O/U 1.5 | 50% |
| Both Teams to Score in Second Half | 50% |
| 2nd Half O/U 2.5 | 50% |
| AA Estudiantes 2nd Half O/U 0.5 | 50% |
| AA Estudiantes 2nd Half O/U 1.5 | 50% |
| CA Tucumán 2nd Half O/U 1.5 | 50% |
| Both Teams to Score | 28% |
| O/U 1.5 | 8% |
| CA Tucumán (-1.5) | 6% |
| 2nd Half O/U 1.5 | 4% |
| AA Estudiantes (-1.5) | 2% |
| AA Estudiantes (-2.5) | 2% |
| CA Tucumán (-2.5) | 2% |
| CA Tucumán 1st Half O/U 1.5 | 1% |
| O/U 2.5 | 0% |
| O/U 3.5 | 0% |
| O/U 4.5 | 0% |
| O/U 5.5 | 0% |
| 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% |
| CA Tucumán O/U 2.5 | 0% |
| AA Estudiantes 1st Half O/U 0.5 | 0% |
| AA Estudiantes 1st Half O/U 1.5 | 0% |
| CA Tucumán 1st Half O/U 0.5 | 0% |
Market context
AA Estudiantes will face CA Tucumán in the Argentine Primera División on 17 August at 1:45 PM ET. The 2% implied probability reflects extremely low confidence that additional markets will be offered for this fixture before settlement at 17:45 UTC that day. Market operators typically expand betting options only when fixture-level liquidity justifies the operational overhead, particularly for mid-table matchups in domestic leagues outside Europe's top five.
Historical precedent suggests that secondary market creation for Argentine Primera División matches depends heavily on pre-match trading volume and operator discretion. Smaller clubs like Tucumán rarely trigger the threshold for expanded market suites unless they're involved in title races or derbies. The 2% reading aligns with baseline expectations for a standard league fixture between non-marquee sides, where bookmakers concentrate resources on core outcomes rather than derivative propositions.
Traders should monitor whether either club announces squad changes or injury updates in the 48 hours before kickoff, as significant roster news occasionally prompts operators to expand markets to capture renewed interest. Fixture scheduling changes—rare but possible in Argentine football—could also shift operator calculations. The settlement window's tight closure at match start means any market expansion must occur during the morning of 17 August, making real-time news flow the primary catalyst. Current probability reflects the baseline assumption that no such catalyst materialises.
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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
- 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 Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- 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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