Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) 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% |
| O/U 1.5 | 100% |
| Both Teams to Score | 100% |
| 1st Half O/U 0.5 | 100% |
| Santos FC O/U 0.5 | 100% |
| Mirassol FC O/U 0.5 | 100% |
| Mirassol FC 1st Half O/U 0.5 | 100% |
| 2nd Half O/U 0.5 | 100% |
| Santos FC 2nd Half O/U 0.5 | 100% |
| Santos FC (-1.5) | 0% |
| Mirassol FC (-1.5) | 0% |
| Santos FC (-2.5) | 0% |
| Mirassol FC (-2.5) | 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 in First Half | 0% |
| 1st Half O/U 1.5 | 0% |
| 1st Half O/U 2.5 | 0% |
| Santos FC O/U 1.5 | 0% |
| Santos FC O/U 2.5 | 0% |
| Mirassol FC O/U 1.5 | 0% |
| Mirassol FC O/U 2.5 | 0% |
| Santos FC 1st Half O/U 0.5 | 0% |
| Santos FC 1st Half O/U 1.5 | 0% |
| Mirassol FC 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% |
| Santos FC 2nd Half O/U 1.5 | 0% |
| Mirassol FC 2nd Half O/U 0.5 | 0% |
| Mirassol FC 2nd Half O/U 1.5 | 0% |
Market context
Santos host Mirassol in Brazil Série A, and this Polymarket contract is priced at 0% YES, which means the market is treating the “more markets” outcome as effectively dead unless the settlement rules catch an edge case. On Polymarket, the position is held as USDC on Polygon and settles through conditional tokens, so the relevant question is not the football result alone but whether the listed ancillary market criteria were clearly met before the 2026-08-23 21:30 UTC deadline.
The historical frame is straightforward: these side-market contracts usually only pay when a specific stat, scoreline, or event is recorded in the official match data before the cut-off, and late goals or post-match corrections rarely change a cleanly settled Serie A fixture. Santos and Mirassol arrived with close league positions and a low-margin pricing backdrop, with pre-match markets showing Santos favoured and a totals line around 2.5, which is the kind of setup that can make “more markets” contracts look tempting while still leaving them vulnerable to one missing condition.
A trader watching this should focus on the official match listing, team sheets, and any changes to kick-off time or abandonment risk, because those are the items most likely to affect settlement rather than the broader contest. The fixture was scheduled at Vila Belmiro for 23 August, and live listings from ESPN, BBC Sport and Globo all aligned on the same start time, which reduced ambiguity around the window. In practice, that leaves little room for a late reschedule to rescue a 0% YES price.
Methodology
We track Santos FC vs. Mirassol FC - More Markets 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
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
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 Kalshi UK. 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.
- 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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