New York Mets vs. Washington Nationals

Platform comparison

Active sub-markets

Market context

Polymarket is pricing New York at just 5% in this USDC market on Polygon, so the contract is trading as a long-shot position rather than a routine side bet. For users holding conditional tokens, the key point is that settlement follows the official final result: a Mets win pays out, a Nationals win does not, and any postponed or suspended game stays open until completion. Because the market can remain live through a make-up date, the settlement window matters as much as the scheduled first pitch.

That low price should be read against the broader shape of recent Mets-Nationals matchups: Washington has been competitive in spots at home, and one preview source noted the Nationals were 11-5 against left-handed pitching this season with a strong .900 OPS in that split. A separate market preview also described the Mets as only a slight favourite rather than a dominant one, which helps explain why a single-game outcome can still produce a skewed price on-chain. In practical terms, a 5% quote implies Polymarket users are treating a Mets win as a tail event, not the base case.

What traders should watch is the confirmed starting pitchers and any late lineup news, because the market can reprice quickly if the Mets’ edge improves or if Washington’s handedness splits become relevant again. The official game listing for 21 May is the main schedule anchor, while any rain delay, doubleheader adjustment or postponement would keep the contract open under the rules. For context, the same series has already drawn live-score coverage and highlight pages from ESPN, which is a sign the fixture is being tracked closely enough that late information can move the market before the first out.

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 PolyGram, which mirrors the Polymarket order book directly.

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 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.