Miami Marlins vs. Pittsburgh Pirates

Platform comparison

Active sub-markets

Market context

The Miami Marlins travel to Pittsburgh on 13 June for an afternoon fixture against the Pirates, with Polymarket currently pricing a Marlins victory at 34 per cent (66 per cent implied probability for Pittsburgh). The conditional token structure on Polygon settles in USDC upon game completion, with the settlement window extending to 20 June to accommodate any postponements. At this probability, traders backing Miami are receiving roughly 2:1 odds, reflecting the Pirates' home-field advantage and recent form differential.

Historically, the Marlins have struggled against Pittsburgh in recent seasons, with the Pirates winning 11 of their last 15 matchups across 2023 and 2024. The Marlins' 2024 campaign saw them finish 71–91, whilst Pittsburgh posted a more competitive 76–86 record. However, the 34 per cent probability assigned to Miami suggests the market is pricing in baseline divisional dynamics rather than accounting for specific roster changes or injury status heading into June 2026. Comparable mid-season matchups between non-contenders typically settle around 40–45 per cent for the visiting team, so current pricing reflects a modest home-field premium.

Traders should monitor starting pitcher announcements, which typically arrive 24 hours before first pitch. Injury reports for key position players—particularly any late-inning bullpen availability—can shift conditional token valuations meaningfully. Weather conditions at PNC Park may also influence total scoring expectations, affecting how the market reprices if precipitation is forecast. Recent roster transactions or call-ups from either organisation's minor-league system should be tracked through official MLB communications.

Methodology

This page reviews Miami Marlins vs. Pittsburgh Pirates across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Kalshi UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On Kalshi 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 Kalshi UK?

Zero. Kalshi 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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Kalshi UK triggers a quick verification flow that finishes in minutes.