Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket Tax UK Pick polygram.ink |
52% | 48% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on Polymarket Tax UK → |
Polymarket polymarket.com |
52% | 48% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on Polymarket Tax UK → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on Polymarket Tax UK → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on Polymarket Tax UK → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on Polymarket Tax 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 Polymarket Tax UK.
Active sub-markets
| Tampa Bay Rays vs. Baltimore Orioles | 52% YES | 49% NO |
| NRFI | 49% YES | 52% NO |
| Spread -2.5 | 30% YES | 71% NO |
| Spread -3.5 | 22% YES | 79% NO |
| Spread -4.5 | 17% YES | 83% NO |
| Spread -1.5 | 32% YES | 69% NO |
Market context
On 26 May at 6:35 PM Eastern Time, the Tampa Bay Rays will face the Baltimore Orioles in a regular-season Major League Baseball fixture. The market resolves to the Rays if they win, to the Orioles if Baltimore prevails, and 50-50 if the game is postponed indefinitely or cancelled without a make-up fixture. Settlement occurs by 2 June 2026 at 22:35 UTC, using official MLB final statistics as the authoritative source.
The 52% implied probability for a Rays victory reflects their recent competitive standing relative to Baltimore. Historical matchup data and seasonal performance trends typically anchor such probabilities; the Orioles have shown volatility in recent campaigns, whilst the Rays maintain consistent playoff contention. Comparable games between these division rivals in prior seasons have seen probabilities shift materially based on roster depth and injury status, particularly among starting pitchers and core position players. Current crowd sentiment at 52-48 suggests marginal confidence in Tampa Bay rather than decisive favouritism.
Traders should monitor roster announcements through 26 May, including confirmed starting pitchers and any late injury disclosures from either club. Weather conditions at the venue may affect game dynamics; rain forecasts occasionally trigger postponements, which would extend the settlement window. From a regulatory standpoint, this market operates under varying jurisdictional frameworks: UK traders face no specific KYC requirement up to £1,500 in aggregate annual trading volume, whilst US participants fall under CFTC oversight of prediction markets, and EU residents referencing German GlüStV regulations should verify their local gaming authority's position on offshore sports prediction contracts. Settlement finality depends entirely on MLB's official box score publication.
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $124K.
Methodology
We track Tampa Bay Rays vs. Baltimore Orioles on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
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.
FAQ
- Is this market available outside the US?
- Polymarket Tax 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'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.
- What does it cost to trade on Polymarket Tax UK?
- Zero. Polymarket Tax 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 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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