New York Mets vs. Philadelphia Phillies

Platform comparison

Active sub-markets

Market context

Polymarket is pricing the **New York Mets** side at 47% YES, which means the contract is still close to a coin flip on Polygon, where users buy and sell conditional tokens for USDC settlement. The market resolves on the official final result of the June 20 game at Citizens Bank Park, so the only thing that matters is who wins on the field, not the closing scoreline or pre-game consensus.[2][7][8]

That 47% reading sits below several conventional pre-game handicaps that leaned towards Philadelphia but not by a wide margin. Recent sportsbook snapshots have shown the Phillies as moderate favourites, with moneyline prices around -186 to -198 and the Mets between +156 and +162, while total runs sat in the 7.5 to 8.5 range.[1][2][3][4] In practical Polymarket terms, that kind of gap often reflects traders weighing a stronger home favourite against late lineup and pitching uncertainty rather than treating the game as a clear one-sided spot.[1][3]

For traders, the main catalysts are any late changes to the starting pitcher, batting order, or weather-related delay risk, because postponement keeps the contract open until the game is completed, while cancellation or a tie would settle 50-50 under the market rules. The settlement window runs well past first pitch, so the key dependency is whether the contest finishes as scheduled, not merely whether it starts.[8] Where market makers are updating their books, any late move in the underlying MLB price can feed straight through to Polymarket via the USDC-denominated order book on Polygon.[8]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track New York Mets vs. Philadelphia Phillies 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

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

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 Polymarket Scam??

Zero. Polymarket Scam? 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, Polymarket Scam? 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.