Tampa Bay Rays vs. Boston Red Sox

Platform comparison

Active sub-markets

Market context

On 9 May 2026, the Tampa Bay Rays will face the Boston Red Sox in an MLB regular-season game scheduled for 4:10 PM ET. The market resolves to the Rays if they win, to the Red Sox if they win, and 50-50 if the game is postponed without completion or cancelled entirely. Current implied probability sits at 48% for a Rays victory, reflecting near-parity between the two franchises at this stage of the season.

Historical matchup data and recent regular-season performance provide context for the current odds. The Rays and Red Sox have maintained competitive balance over recent seasons, with neither team establishing sustained dominance in head-to-head play. Seasonal records, pitching rotations, and injury status as of early May typically drive meaningful shifts in win probability for individual games. The 48% figure suggests market participants view this as a closely matched contest, with slight lean toward Boston, though the settlement window extending to 16 May 2026 allows for late-breaking roster changes or weather-related postponements to influence final resolution.

From a regulatory perspective, this market's accessibility varies by jurisdiction. Under German GlüStV (gambling licensing regulations), prediction markets on sports events may require specific licensing depending on operator classification. US CFTC oversight applies to certain prediction market contracts, though sports betting markets typically fall under state-level regulation rather than federal commodities oversight. Many platforms offer no-KYC access up to $1,500 in aggregate position value, meaning traders can participate without identity verification below this threshold, though this threshold and its applicability depend on the operator's licensing framework and the trader's jurisdiction.

Methodology

This page reviews Tampa Bay Rays vs. Boston Red Sox across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at PolyGram — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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.