Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Market UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| O/U 0.5 | 100% |
| CA San Lorenzo de Almagro O/U 0.5 | 100% |
| 2nd Half O/U 0.5 | 100% |
| CA San Lorenzo de Almagro 2nd Half O/U 0.5 | 100% |
| CA San Lorenzo de Almagro (-1.5) | 0% |
| CA Unión (-1.5) | 0% |
| CA San Lorenzo de Almagro (-2.5) | 0% |
| CA Unión (-2.5) | 0% |
| O/U 1.5 | 0% |
| O/U 2.5 | 0% |
| O/U 3.5 | 0% |
| O/U 4.5 | 0% |
| O/U 5.5 | 0% |
| Both Teams to Score | 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 San Lorenzo de Almagro O/U 1.5 | 0% |
| CA San Lorenzo de Almagro O/U 2.5 | 0% |
| CA Unión O/U 0.5 | 0% |
| CA Unión O/U 1.5 | 0% |
| CA Unión O/U 2.5 | 0% |
| CA San Lorenzo de Almagro 1st Half O/U 0.5 | 0% |
| CA San Lorenzo de Almagro 1st Half O/U 1.5 | 0% |
| CA Unión 1st Half O/U 0.5 | 0% |
| CA Unión 1st Half O/U 1.5 | 0% |
| Both Teams to Score in Second Half | 0% |
| 2nd Half O/U 1.5 | 0% |
| 2nd Half O/U 2.5 | 0% |
| CA San Lorenzo de Almagro 2nd Half O/U 1.5 | 0% |
| CA Unión 2nd Half O/U 0.5 | 0% |
| CA Unión 2nd Half O/U 1.5 | 0% |
Market context
On 15 August 2026, CA San Lorenzo de Almagro will face CA Unión in a Primera División Argentina fixture scheduled for 1:30 PM ET. This market concerns additional betting opportunities beyond the standard match outcome — typically including options such as total goals, both teams to score, or specific player performances. In prediction markets, a YES share represents a bet that the specified condition will occur; a NO share bets against it. The settlement window closes at 5:30 PM ET on match day, allowing traders to position themselves until shortly after kick-off.
The 0% implied probability suggests traders currently assess the condition as extremely unlikely or that insufficient liquidity exists to establish a meaningful price. San Lorenzo and Unión have met regularly in Argentina's top division, with recent encounters typically producing competitive matches. Historical data from their head-to-head record and seasonal performance patterns would normally inform whether secondary markets — such as over/under goal totals or defensive outcomes — align with typical expectations for these clubs' playing styles.
Traders monitoring this market should track team news releases in the days preceding the match, including injury confirmations and lineup announcements from both clubs. Fixture congestion in the Argentine calendar, particularly if either side has played midweek commitments, could affect player availability and tactical approach. Weather conditions in Argentina on match day and any late changes to venue or scheduling would also influence how secondary market conditions settle.
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
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
UK Frequently Asked Questions
- 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.
- 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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