Seattle Mariners vs. Pittsburgh Pirates

Platform comparison

Active sub-markets

Market context

The Seattle Mariners and Pittsburgh Pirates face off in game two of their interleague series at PNC Park on 24 June, with the Mariners already securing a 3–2 victory in game one thanks to Andres Munoz’s ninth-inning strikeout of the side[1]. The current crowd-implied probability of 0% for a Mariners win appears starkly misaligned with the reality that the Mariners sit 40–39, first in the AL West, while the Pirates hover at 39–39, fourth in the NL Central[2][3]. Historical precedents in MLB interleague play show that teams with a narrow record edge and superior bullpen depth—like the Mariners, bolstered by Cal Raleigh’s return—often dominate the second game of a series, especially when the first game was a tight, low-scoring affair resolved by late-inning pitching[2].

Traders should monitor official injury updates for Josh Naylor and Luke Raley, both day-to-day, and Randy Arozarena’s 10-day IL placement, which could shift the Mariners’ offensive output[2]. The Pirates’ absences, particularly Oneil Cruz’s extended hand recovery, remain a critical dependency for their run production[2]. Probable starters for game two, including Braxton Ashcraft for the Pirates, will be confirmed shortly and are likely to drive immediate market adjustments[2][6]. With home/road splits and bullpen depth shaping outcomes at PNC Park, the Mariners’ narrow edge in overall record and recent form suggest the 0% probability is an outlier rather than a reflection of genuine risk[2].

Sources: 1 · 2 · 3 · 4 · 5

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 Sport Prediction, 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 Sport Prediction, 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?

Sport Prediction 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.

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?

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