Miami Marlins vs. Pittsburgh Pirates

Platform comparison

Active sub-markets

Market context

The Miami Marlins travel to Pittsburgh on 12 June for an evening fixture against the Pirates, with settlement occurring a week later on 19 June. The 0% implied probability suggests the market has either not yet attracted meaningful volume or reflects an exceptionally strong consensus toward one outcome. Given the Marlins' recent form and roster composition, this pricing warrants scrutiny before the game approaches.

Historical context matters here: the Pirates have finished below .500 in four of the last five seasons, whilst the Marlins, despite their own struggles, have shown competitive stretches. Head-to-head records between these franchises rarely diverge dramatically from their overall win rates, meaning a team with a significantly better record should command a measurable edge. The 0% reading is atypical for regular-season MLB matchups unless one side has suffered a catastrophic injury or the market simply lacks liquidity. Previous instances of extreme probability clustering in baseball markets often reflect delayed price discovery rather than genuine certainty.

Traders should monitor roster updates through early June, particularly any late-season injuries to key position players or starting pitchers for either side. Pitching matchups carry outsized importance in baseball; if Miami's rotation is healthier or Pittsburgh's is depleted, that shifts the calculus considerably. Recent performance trends—win streaks, bullpen effectiveness, home-field advantage—typically emerge in the week before the fixture. The settlement window extending to 22 June allows for postponements, which occasionally occur in June due to weather, though this is less common than in April.

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 Who Will Win, 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 Who Will Win, 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.

Is this market available outside the US?

Who Will Win is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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 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.