Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Election Predictions UK Pick polygram.ink |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Election Predictions UK → |
Polymarket polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Election Predictions UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Election Predictions UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Election Predictions UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Election Predictions UK → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Election Predictions UK.
Active sub-markets
| 1st 5 Innings O/U 4.5 | 100% Over | 0% Under |
| Spread -3.5 | 11% Baltimore Orioles | 90% Seattle Mariners |
| Spread -2.5 | 24% Baltimore Orioles | 76% Seattle Mariners |
| Spread -1.5 | 79% Baltimore Orioles | 22% Seattle Mariners |
| Spread -2.5 | 11% Seattle Mariners | 90% Baltimore Orioles |
| Spread -3.5 | 3% Seattle Mariners | 97% Baltimore Orioles |
Market context
The Seattle Mariners face the Baltimore Orioles in an MLB regular-season matchup scheduled for 11 June at 7:05 PM ET, with settlement occurring by 18 June. The market currently reflects near-certainty in the YES outcome, suggesting traders perceive a substantial Mariners advantage or have priced in incomplete information about roster availability and recent form.
Historical precedent for MLB games between these franchises shows competitive balance, though the Orioles have demonstrated improved performance in recent seasons following their 2023 rebuild trajectory. The 100% probability reading appears disconnected from typical pre-game uncertainty in baseball, where single-game outcomes carry inherent variance. Comparable markets for regular-season MLB contests typically settle with implied probabilities ranging from 55–65% for favoured teams, indicating this market may reflect either data lag or extreme confidence in a specific catalyst.
Traders should monitor roster announcements in the days preceding the fixture, particularly injury reports affecting starting pitchers and key position players. Recent Baltimore performance metrics and Seattle's home-field record at T-Mobile Park warrant attention, as does any late-breaking news regarding weather conditions that could affect play. The settlement window extends seven days beyond the scheduled game date, allowing for postponement scenarios. Any official cancellation without a rescheduled make-up game would trigger a 50-50 resolution, fundamentally altering current market positioning.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $659K.
Methodology
Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Seattle Mariners vs. Baltimore Orioles plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.
Resolution & payout
For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.
FAQ
- Is this market available outside the US?
- Election Predictions UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.
- 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.
- What does it cost to trade on Election Predictions UK?
- Zero. Election Predictions UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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