Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| NRFI | 100% |
| 1st 5 Innings O/U 2.5 | 100% |
| 1st 5 Innings O/U 3.5 | 100% |
| O/U 6.5 | 78% |
| O/U 7.5 | 62% |
| O/U 8.5 | 51% |
| 1st 5 Innings Spread -1.5 | 50% |
| 1st 5 Innings Spread -1.5 | 50% |
| 1st 5 Innings O/U 4.5 | 50% |
| 1st 5 Innings O/U 5.5 | 50% |
| 1st 5 Innings O/U 6.5 | 50% |
| Spread -1.5 | 47% |
| O/U 9.5 | 37% |
| Seattle Mariners vs. Texas Rangers | 30% |
| Spread -2.5 | 30% |
| Spread -1.5 | 18% |
| Extra Innings | 11% |
| Spread -2.5 | 11% |
Market context
The Seattle Mariners face the Texas Rangers on 24 July at 8:05 PM ET in a regular-season MLB matchup. The prediction market currently implies a 28% probability of a Mariners victory, suggesting Rangers favouritism at roughly 72%. This divergence from typical sportsbook opening lines warrants examination, as prediction markets and traditional betting venues often reflect different risk appetites and information sets.
Historically, prediction-market probabilities for regular-season MLB games tend to cluster within 5–10 percentage points of consensus sportsbook odds, with notable divergences typically signalling either sharp money detecting value or market inefficiency. The 28% figure for Seattle sits notably lower than most major sportsbooks' closing lines for comparable matchups this season, where the Mariners—despite recent roster adjustments—have maintained roughly 35–40% implied win probability in similar contexts. This gap suggests either that prediction-market participants are pricing in additional pessimism about Seattle's current form or that traditional oddsmakers are applying different weighting to recent performance data.
Traders should monitor roster availability announcements through 23 July, particularly regarding starting pitcher assignments and any late injury disclosures. Texas's recent record against left-handed pitching and Seattle's bullpen depth in July heat will influence sharper positioning. The Rangers' performance trajectory in their preceding games and any weather updates for the Pacific timezone game time may also shift informed participants' assessments before the settlement window closes on 1 August.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $357K.
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 Best Prediction Markets UK, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- 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.
- 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's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- 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.
Trade Seattle Mariners vs. Texas Rangers on Best Prediction Markets UK
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