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% |
| 1st Half O/U 0.5 | 100% |
| Grêmio FBPA O/U 0.5 | 100% |
| Grêmio FBPA 1st Half O/U 0.5 | 100% |
| Grêmio FBPA (-1.5) | 0% |
| Mirassol FC (-1.5) | 0% |
| Grêmio FBPA (-2.5) | 0% |
| Mirassol FC (-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 1.5 | 0% |
| 1st Half O/U 2.5 | 0% |
| Grêmio FBPA O/U 1.5 | 0% |
| Grêmio FBPA O/U 2.5 | 0% |
| Mirassol FC O/U 0.5 | 0% |
| Mirassol FC O/U 1.5 | 0% |
| Mirassol FC O/U 2.5 | 0% |
| Grêmio FBPA 1st Half O/U 1.5 | 0% |
| Mirassol FC 1st Half O/U 0.5 | 0% |
| Mirassol FC 1st Half O/U 1.5 | 0% |
| Both Teams to Score in Second Half | 0% |
| 2nd Half O/U 0.5 | 0% |
| 2nd Half O/U 1.5 | 0% |
| 2nd Half O/U 2.5 | 0% |
| Grêmio FBPA 2nd Half O/U 0.5 | 0% |
| Grêmio FBPA 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
The Copa do Brasil tie between Grêmio and Mirassol has just been through the first leg, with Mirassol taking a 2-1 win on 17 July and the pair having already met twice in the league this year, both times producing narrow, low-scoring games. That recent run is the main reason a **0% YES** price on “more markets” looks detached from the actual match profile: these teams have been close enough that late lineup news or an early goal can move secondary markets quickly, even if the main result market stays compressed.
Historically, this is a matchup that has not produced much separation. Mirassol beat Grêmio 1-0 in September 2025 and 2-1 in July 2026, while Grêmio’s own home projection for the cup tie was still centred around a tight edge rather than a one-sided script. Comparable H2H and model snapshots published before kick-off pointed to a Grêmio win as the likeliest single outcome, but with draw and away-win chances still material, which is exactly the kind of setup that tends to support volatility across more granular markets rather than a clean sweep. [10][11][17][20]
For traders, the key catalysts are team news, confirmed starters, and whether Grêmio treat the second leg as an aggressive chase or a controlled, score-management approach. The market is also sensitive to whether Mirassol rotate after the first-leg advantage, because any conservatism reduces the chance of an open game and can suppress first-goal or first-half derivatives. Match listings from ESPN and other fixtures pages confirm the August 5 cup date and venue, but the live edge will come from late squad announcements and any tactical clues released close to kick-off. [11][17][18]
Methodology
This page reviews Grêmio FBPA vs. Mirassol FC - More Markets across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Prediction Today, which mirrors the Polymarket order book at 0% fees.
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
- 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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