Pronóstico: New York Yankees vs. Boston Red Sox

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Active sub-markets

Market context

The upcoming MLB clash between the New York Yankees and Boston Red Sox, scheduled for 7:10PM ET on 26 June, has already settled in prediction markets with a current crowd-implied probability of 0% for a Yankees victory, despite the Yankees being favoured on traditional moneylines at -118[1][4]. This stark divergence between on-chain pricing and conventional sportsbook odds frames the contract as a high-risk, low-liquidity instrument where the market is effectively betting against the home team’s ability to win outright, even as the Yankees hold a 48-32 record and sit first in the AL East[8].

Historically, similar probability collapses in Yankees-Red Sox markets have occurred when the home team’s starting pitcher is underperforming or when the road team possesses a dominant bullpen, as seen in past June matchups where the Yankees won straight up as favourites on the road[7]. The current 0% pricing suggests traders are anticipating a Red Sox victory or a tie, yet the moneyline spread of Yankees -1.5 (+138) indicates bookmakers still view New York as the likely winner, creating a potential arbitrage opportunity if the on-chain price corrects[1][2].

Traders must monitor Gerrit Cole’s confirmed starting status and any late-injury announcements for the Yankees’ rotation, as his 3.62 ERA remains a critical catalyst for the game’s outcome[6]. Additionally, the weather forecast for Boston and the total runs line set at 8.5 could shift momentum if high winds or rain delay the game, which would keep the market open until completion[1][2]. The settlement window ending 23:10 UTC on 3 July 2026 provides ample time for a postponed game to be resolved, but any cancellation would force a 50-50 split, a risk that currently underpins the 0% pricing[1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Pronóstico: New York Yankees vs. Boston Red Sox 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

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'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 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.