Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| NRFI | 100% |
| 1st 5 Innings O/U 2.5 | 86% |
| 1st 5 Innings O/U 3.5 | 71% |
| 1st 5 Innings O/U 5.5 | 64% |
| 1st 5 Innings O/U 4.5 | 56% |
| Miami Marlins vs. New York Mets | 55% |
| O/U 8.5 | 54% |
| Spread -1.5 | 43% |
| O/U 9.5 | 40% |
| 1st 5 Innings Spread -1.5 | 38% |
| O/U 10.5 | 34% |
| 1st 5 Innings O/U 6.5 | 31% |
| Spread -2.5 | 31% |
| Spread -1.5 | 28% |
| 1st 5 Innings Spread -1.5 | 21% |
| Spread -2.5 | 19% |
| Extra Innings | 11% |
Market context
Polymarket’s contract is pricing the **Marlins** at about **55%** to win this game, with the YES side reflecting that probability in USDC on Polygon via conditional tokens. In practice, that means the market is only modestly leaning Miami rather than signalling a strong conviction either way, and the price should be read as a live blend of team strength, home-field effects and any late information the market has already absorbed.
That sits in line with nearby market history for this matchup, which has often been framed as close rather than one-sided. Recent comparable pricing has repeatedly had the Mets as a small favourite and the Marlins as a live underdog, with models and bookmaker lines clustering around the mid-50s for either side rather than producing a clear separation.[2][4][7] For a Polymarket user, that kind of range usually means the contract is sensitive to even small changes in projected starting pitchers, batting orders or weather, because there is not much cushion between a fair price and a misprice.
The main catalysts are the official line-ups, any pitching announcement or change, and whether the game starts on time or is delayed, postponed or rescheduled, because the market only resolves once the game is completed unless it is cancelled or tied. If the scheduled contest does not finish, the conditional token stays open until the governing result is official; if there is no make-up game or the game ends level, the market resolves 50-50. At the time of the available market data, the matchup had also been listed with Mets moneyline pricing around -115 to -126 and Marlins around +105 to +108, which is useful context for judging whether the 55% YES implies a meaningful premium or just a narrow edge.[2][4][7]
Live Data & Statistics
Live stats load when the match begins. Current market odds are shown above. Trading volume: $349K.
Methodology
This page reviews Miami Marlins vs. New York Mets across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi UK, which mirrors the Polymarket order book at 0% fees.
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
- 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?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- 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.
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