Tampa Bay Rays vs. New York Yankees

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Active sub-markets

Market context

The Tampa Bay Rays travel to face the New York Yankees on 23 May at 1:35 PM ET in a regular-season MLB matchup. The current crowd-implied probability of 44% for a Rays victory reflects modest confidence in the visiting team, despite the Yankees' historical home-field advantage and stronger recent form. Settlement occurs on 30 May at 17:35 UTC, allowing for postponement resolution should weather or scheduling disruptions occur.

Historical matchups between these franchises show the Yankees have won roughly 56% of games played at Yankee Stadium over the past decade, though the Rays' competitive pitching rotations have occasionally compressed that edge. The 44% probability sits near the baseline for visiting teams in this division, suggesting the market has already priced in standard home-field factors without overweighting either club's current roster strength or injury status.

Traders should monitor roster announcements through 23 May, particularly regarding starting pitcher assignments and any late-inning bullpen availability. Recent Yankees performance data and Rays injury reports—especially among position players—will shape late-market movement. Deposit flows into prediction markets typically accelerate 48 hours before settlement windows close; liquidity depth on this fixture will depend on whether major sportsbooks or news outlets highlight injury developments or betting-line shifts that trigger arbitrage interest. Payment rails including SEPA transfers and USDC deposits affect how quickly capital can reach trading accounts, potentially influencing whether sharp money enters the book before the first pitch.

Methodology

This page is a comparison snapshot: one live quote (Polymarket), 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

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?

PolyGram 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 PolyGram?

Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in 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.