New York Mets vs. Washington Nationals

Platform comparison

Active sub-markets

Market context

The New York Mets and Washington Nationals were scheduled to meet in Washington on 20 May at 6:45pm ET, and this market is tied to the final official result once the game is completed. With crowd-implied probability already at 100% YES, the pricing is effectively treating the Mets as a settled outcome rather than a live contest. If the game were postponed, the market would stay open until the make-up date; if it were cancelled outright or ended in a tie, it would resolve 50-50. That structure matters for timing, because the settlement window runs to 27 May, leaving room for administrative delays rather than just on-field outcomes.

For context, the main comparison is between a routine moneyline-style baseball result and the legal wrapper around the contract. In Germany, the GlüStV framework can affect access to betting-style products, so users should not assume uniform availability across jurisdictions. In the US, CFTC reach is relevant where an event contract may be treated as a regulated derivatives product rather than a sportsbook bet. For this specific market, “no-KYC up to $1,500” means smaller participation may be possible without full identity checks, but it does not remove territorial restrictions or change how the contract settles.

The main catalysts are simple: line-up announcements, late injury news, and any MLB scheduling changes that could push the game into a doubleheader or a make-up slot. For a May game, the practical watchpoints are weather and roster moves rather than long-range strategy. If the event is delayed or replayed, the settlement clock follows the completed game, not the original date, so traders need to track official league updates rather than ticket listings or third-party score pages.

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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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.

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.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.