Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Election Predictions UK) Pick polygram.ink (preferred broker) |
80% | 20% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
80% | 20% | 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 | 80% |
| 1st 5 Innings O/U 3.5 | 68% |
| 1st 5 Innings O/U 4.5 | 59% |
| O/U 8.5 | 57% |
| NRFI | 53% |
| New York Yankees vs. Baltimore Orioles | 51% |
| O/U 9.5 | 47% |
| 1st 5 Innings O/U 5.5 | 46% |
| Spread -1.5 | 40% |
| O/U 10.5 | 40% |
| 1st 5 Innings O/U 6.5 | 33% |
| Spread -1.5 | 33% |
| 1st 5 Innings Spread -1.5 | 32% |
| Spread -2.5 | 31% |
| 1st 5 Innings Spread -1.5 | 30% |
| Spread -2.5 | 23% |
| Extra Innings | 10% |
Market context
The New York Yankees face the Baltimore Orioles on 19 August at 6:35 PM ET in an AL East divisional matchup. The market currently prices the Yankees at 51 per cent, reflecting marginal favouritism despite Baltimore's competitive standing within the division. This fixture falls within the final six weeks of the regular season, when playoff positioning becomes increasingly consequential for both franchises.
Historically, Yankees-Orioles matchups have favoured New York in aggregate, though Baltimore has shown capacity to compete effectively in recent seasons. The Orioles' 2023-2024 resurgence altered the traditional power dynamic of this rivalry, making single-game outcomes less predictable than they were during periods of clearer talent separation. Current market pricing at 51 per cent suggests traders view this as a genuinely competitive encounter rather than a heavily favoured outcome, consistent with how divisional games typically resolve when both teams remain in contention.
Key variables affecting settlement include starting pitcher assignments, recent injury status across both rosters, and cumulative fatigue from the schedule leading into late August. The Yankees' recent form and bullpen availability will likely drive any significant probability shifts before first pitch. Traders should monitor official MLB injury reports and team announcements in the 48 hours preceding the game, as roster decisions made by either club could materially alter expected win probability. The settlement window extends to 26 August, allowing for postponement resolution should weather or other factors delay the fixture.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $388K.
Methodology
This page tracks New York Yankees vs. Baltimore Orioles across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Election Predictions UK provide a 0%-fee route into the same order book.
Resolution & payout
Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.
Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.
UK Frequently Asked Questions
- How accurate are political prediction markets?
- Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.
- What resolution source is used for elections?
- Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.
- Can prediction markets influence election outcomes?
- Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.
- Which platform has the deepest political liquidity?
- Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Election Predictions UK route into the same order book at 0% fees.
- Are UK election prediction markets available from the UK?
- Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.
Trade New York Yankees vs. Baltimore Orioles on Election Predictions UK
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