Miami Marlins vs. Pittsburgh Pirates

Platform comparison

Active sub-markets

Market context

The Miami Marlins travel to Pittsburgh on 14 June for a midday matchup against the Pirates, with settlement occurring six days later on 21 June. The 60% implied probability favours Miami, reflecting their stronger recent performance relative to Pittsburgh's rebuild trajectory. For algorithmic traders, this market presents a straightforward binary with clear MLB official statistics as the resolution source, though the seven-day settlement window creates exposure to injury announcements or roster moves between fixture and closure.

Historical context suggests the Marlins have outperformed the Pirates in head-to-head matchups over the past two seasons, winning approximately 55–60% of regular-season contests. However, daytime games at PNC Park have historically favoured the home side more consistently than evening fixtures, a factor worth weighting into conditional order logic. The Pirates' recent performance against teams with winning records remains below 40%, whilst Miami's record against sub-.500 opponents sits closer to 55%, creating a structural advantage that the current odds partially reflect.

Traders should monitor starting pitcher announcements, typically confirmed 48 hours before first pitch. Recent injury reports from both organisations—particularly regarding Miami's bullpen depth and Pittsburgh's outfield availability—could shift the probability meaningfully. The MLB schedule's compressed June slate may also influence roster decisions or rest patterns. For automated systems, setting alerts on official MLB roster transactions and weather forecasts for Pittsburgh (rain delays affect daytime games disproportionately) provides actionable data points between now and settlement.

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 Polymarket Review UK, 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 Polymarket Review UK?

Zero. Polymarket Review UK 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.