Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
71% | 29% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
71% | 29% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 1st 5 Innings O/U 2.5 | 71% |
| 1st 5 Innings O/U 3.5 | 56% |
| New York Yankees vs. Baltimore Orioles | 52% |
| O/U 7.5 | 50% |
| NRFI | 44% |
| 1st 5 Innings O/U 4.5 | 43% |
| O/U 8.5 | 42% |
| Spread -1.5 | 38% |
| 1st 5 Innings O/U 5.5 | 32% |
| Spread -1.5 | 32% |
| O/U 9.5 | 32% |
| 1st 5 Innings Spread -1.5 | 30% |
| 1st 5 Innings Spread -1.5 | 28% |
| Spread -2.5 | 28% |
| Spread -2.5 | 22% |
| 1st 5 Innings O/U 6.5 | 21% |
| Extra Innings | 10% |
Market context
The Yankees travel to Baltimore on 20 August for an evening fixture against the Orioles, with Polymarket currently pricing a Yankees victory at 52% on USDC via Polygon conditional tokens. This mid-season AL East matchup carries standard settlement mechanics: the market resolves to the winner of the completed game as recorded in official MLB statistics, with a 50-50 split only if the fixture is cancelled without a rescheduled date or ends in a tie—an exceptionally rare outcome in nine-inning baseball.
Historical context suggests the 52% probability reflects the Yankees' structural advantages rather than exceptional form. Since 2020, New York has won roughly 54% of head-to-head meetings against Baltimore, whilst maintaining a superior regular-season win rate across most seasons. The Orioles, however, have shown volatility in recent campaigns; their 2023 resurgence followed years of rebuilding, making them capable of competitive performances despite lower historical win percentages. Current divisional standing and recent win-loss records will substantially influence how traders adjust positions before settlement on 27 August.
Key variables for position management include starting pitcher assignments—typically announced 48 to 72 hours before game time—and injury updates affecting either roster. Weather conditions at Camden Yards can favour certain playing styles, whilst any schedule disruptions or postponements would extend the settlement window. Recent MLB injury reports and team announcements should be monitored through official league channels and team communications, as bullpen availability and key player status frequently shift market pricing in the final trading window.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $181K.
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.
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 PolyGram. 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%.
Trade New York Yankees vs. Baltimore Orioles on PolyGram
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