Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
49% | 51% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
49% | 51% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on PolyGram.
Active sub-markets
| New York Mets vs. Miami Marlins | 49% YES | 52% NO |
| NRFI | 49% YES | 52% NO |
| Spread -1.5 | 37% YES | 64% NO |
| O/U 8.5 | 45% YES | 56% NO |
| O/U 7.5 | 54% YES | 47% NO |
| Spread -3.5 | 17% YES | 84% NO |
Market context
The New York Mets are scheduled to face the Miami Marlins at loanDepot park on 22 May, with the market resolving on the official result if the game is completed, or 50-50 if it is washed out or cancelled. A 49% yes price implies a near pick’em in a divisional matchup, which is broadly consistent with how closely matched NL East games can trade when neither side has a clear pitching or form edge. Historical head-to-head results between these clubs have often been split across low-scoring, one-run games, so a mid-range probability should be read as modest rather than strong conviction.
For context, the accessible route into this market depends on the venue’s rules as much as the baseball. In Germany, GlüStV restrictions can limit access to offshore prediction markets, while the US CFTC’s reach means these contracts sit in a more tightly regulated grey area for American users than ordinary sports-betting products. Where a platform advertises no-KYC up to $1,500, that usually means smaller deposits or withdrawals may be processed without full identity checks, but limits, geofencing, and source-of-funds requests can still apply depending on jurisdiction and transaction pattern.
Traders should watch the official line-ups, starting pitcher confirmation, and any weather or travel news before first pitch, because those are the main late catalysts for a near-even MLB market. ESPN’s live game listing and MLB’s ticketing pages both show the fixture as a same-day series game at loanDepot park, so any postponement or rescheduling would matter directly for settlement timing. If either club announces a late pitching change or a scratch to a key bat, that can move a close price quickly even when the crowd is sitting near 50-50.
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
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
- 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.
- 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, PolyGram triggers a quick verification flow that finishes in minutes.
Trade New York Mets vs. Miami Marlins on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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