Tampa Bay Rays vs. New York Yankees

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Active sub-markets

Market context

The Tampa Bay Rays visit the New York Yankees tonight at Yankee Stadium, with the market currently pricing a Rays win at 43%. That is broadly in line with the latest sportsbook read, where DraftKings had Tampa Bay around +130 and New York about -157, implying a modest Yankees edge but not a dominant one. Analyst consensus is slightly more favourable to Tampa Bay than the moneyline suggests: NBC Sports’ model leans Rays on the moneyline and under 8.0 runs, while avoiding the run line. In other words, the market sits between a small Yankees home advantage and a model view that Tampa Bay is live in a fairly tight game.

Recent form gives a mixed picture rather than a clear favourite. ESPN’s season snapshot shows New York with a stronger run differential on raw offence, but Tampa Bay has reached the matchup with a better overall record entering the series and has already taken recent head-to-head games, including a 5-3 win in April. The surrounding context matters too: this is the opener of a three-game series, with both clubs still needing results in a crowded American League race, so lineup strength and bullpen usage are likely to move the price more than standing alone. Any confirmed starting pitchers, late scratches, or weather-related changes will be the main catalysts to watch before first pitch, especially given the relatively tight spread between the betting line and the crowd-implied 43%.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Tampa Bay Rays vs. New York Yankees 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

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.

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.