Philadelphia Phillies vs. New York Mets

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Active sub-markets

Market context

The Philadelphia Phillies and New York Mets face off in a crucial MLB matchup on Saturday, 27 June 2026, at 4:10 PM ET, with the Phillies needing to secure a win to resolve the prediction market favouring them. Current crowd-implied probability sits at 12% for the Phillies, a figure that diverges sharply from sportsbook lines where the Mets are the -136 favourite and the Phillies carry +120 odds, while analyst consensus leans 60% public support for the Mets[2][3]. This 12% probability mirrors historical cases where underdogs with strong recent form, such as the Phillies’ 2-1 victory in their last meeting on 26 June, are mispriced by prediction markets despite sportsbooks correctly pricing them as challengers[5].

Traders should monitor the starting lineups for both teams, particularly the pitching rotations, as any late changes could significantly alter the game’s dynamics and shift the implied probability[7]. Recent news from Covers.com highlights that the Phillies rank 14th in slugging percentage but 28th in on-base percentage, suggesting offensive inconsistency that could be a catalyst for volatility if key hitters are rested or injured[6]. Additionally, the settlement window ending on 4 July 2026 means any postponement will keep the market open, so weather updates for the New York venue are critical dependencies to watch before gametime[1]. The divergence between the 12% market probability and the 54% public betting share for the Mets indicates sharp money may be favouring the Phillies, creating a potential arbitrage opportunity for informed traders[4].

Sources: 1 · 2 · 3 · 4 · 5

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 Best Prediction Markets UK, 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?

Best Prediction Markets 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.

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.