New York Mets vs. Philadelphia Phillies

Platform comparison

Active sub-markets

Market context

The New York Mets and Philadelphia Phillies are scheduled to play in Philadelphia at Citizens Bank Park, with first pitch listed for 7:20 p.m. ET and broadcast on NBC/Peacock. The crowd-implied **44% YES** suggests the Mets are a live but underpriced side relative to the home team, so a programme-built trader would treat the number as a mid-range probability rather than a strong lean and then update it against line-up and pitching news close to lock.[1][5]

The cleanest historical frame is the recent head-to-head split: Philadelphia won 15-3 on 20 June, with Kyle Schwarber homering three times and Bryce Harper hitting for the cycle, which is the sort of result that can compress a market if traders over-weight the latest box score.[8] MLB’s preview for this game also highlights Zack Wheeler’s recent dominance against the Mets, posting a 1.44 ERA in four starts versus New York since the start of 2024, which points to a pitcher-driven read rather than a pure team-brand read.[4] For users running conditional orders or bot rules, that means the key inputs are not the current percentage alone but whether the starting pitchers, batting orders, and any late scratches preserve that matchup shape.[4]

The main catalysts are official line-up releases, any starter changes, and late weather or schedule updates from MLB and the clubs, because a postponement keeps the market open until completion, while a cancellation would force the 50-50 rule in the description. At the time of the listed slate, ESPN shows the game on the schedule with both teams’ records already diverging, which matters for automated sizing because away/home splits and recent form can move quickly once the line-up card is confirmed.[1]

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

Where can I trade this market with the lowest fees?

On Polymarket Review UK, 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.

Is this market available outside the US?

Polymarket Review 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.

What does it cost to trade on Polymarket Review UK?

Zero. Polymarket Review UK 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.