Miami Marlins vs. Pittsburgh Pirates

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Active sub-markets

Market context

The Marlins host the Pirates on 14 June at 12:15 PM ET in Miami, with the market currently pricing Miami at 69% likelihood of victory. This represents a modest favourite position, reflecting the home-field advantage but not overwhelming confidence in the matchup. The settlement window extends to 21 June, providing a week-long buffer for any postponements or scheduling complications.

Miami's recent form and roster depth relative to Pittsburgh's rebuilding trajectory historically supports the home-side pricing. The Pirates have operated as one of baseball's lower-payroll franchises, whilst the Marlins, despite their own financial constraints, maintain competitive depth in their division. Head-to-head records between these clubs over the past three seasons show Miami winning slightly more than half their encounters, which aligns reasonably with the current 69% probability rather than suggesting significant mispricing in either direction.

Traders should monitor starting pitcher announcements in the 48 hours before the game, as rotation decisions can shift matchup dynamics substantially. Weather conditions in Miami during mid-June—particularly afternoon thunderstorms—present a material postponement risk that could extend the settlement window. Any late roster moves, injuries to key position players, or bullpen availability updates from either side would merit reassessment, though such developments remain speculative at this stage. The 12:15 PM start time is relatively early for Miami summer baseball, which may influence fatigue factors and attendance-dependent performance metrics.

Methodology

We track Miami Marlins vs. Pittsburgh Pirates 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

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 Prediction Today, 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 Prediction Today?

Zero. Prediction Today 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.