Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| NRFI | 100% |
| 1st 5 Innings O/U 3.5 | 82% |
| 1st 5 Innings O/U 4.5 | 78% |
| 1st 5 Innings O/U 5.5 | 76% |
| O/U 7.5 | 74% |
| O/U 8.5 | 66% |
| O/U 9.5 | 55% |
| 1st 5 Innings O/U 2.5 | 51% |
| Extra Innings | 51% |
| 1st 5 Innings Spread -1.5 | 50% |
| 1st 5 Innings Spread -1.5 | 50% |
| Baltimore Orioles vs. Minnesota Twins | 47% |
| O/U 10.5 | 45% |
| 1st 5 Innings O/U 6.5 | 44% |
| Spread -1.5 | 36% |
| Spread -1.5 | 34% |
| Spread -2.5 | 26% |
| Spread -2.5 | 24% |
Market context
The Baltimore Orioles face the Minnesota Twins in a regular-season MLB matchup on 12 August at 1:40 PM ET. The current crowd-implied probability of 47% for an Orioles victory reflects modest confidence in Baltimore, suggesting the market perceives this as a competitive fixture with slight lean toward Minnesota. Settlement occurs on 19 August, providing a week-long window for the game to conclude and resolve on-chain via USDC.
Historical matchup data between these franchises shows competitive balance over recent seasons, with neither team establishing decisive dominance in head-to-head records. The Orioles' 2023–2024 performance trajectory and the Twins' mid-season form will anchor baseline expectations. August fixtures typically carry reduced volatility compared to playoff-adjacent September contests, meaning the 47% probability likely reflects genuine competitive positioning rather than late-season desperation dynamics. Comparable single-game markets on btc-prediction.bet have historically converged toward 50-50 when teams possess similar win-loss records and playoff positioning.
Traders should monitor roster announcements through 12 August, particularly injury reports affecting starting pitchers or key position players. The Twins' recent offensive output and Baltimore's bullpen availability represent material variables. Weather conditions at game time—temperature and wind direction—can significantly influence scoring outcomes in August baseball. Any schedule changes or postponements would extend the settlement window, requiring traders to maintain positions through the rescheduled date. Recent MLB injury updates and team-specific news from ESPN or MLB.com should inform position sizing decisions ahead of first pitch.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $596K.
Methodology
This page reads Baltimore Orioles vs. Minnesota Twins on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
UK Frequently Asked Questions
- Why USDC and not ETH or USDT?
- USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- 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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