Pittsburgh Pirates vs. Toronto Blue Jays

Platform comparison

Active sub-markets

Market context

The Pittsburgh Pirates travel to Toronto on 23 May for a regular-season matchup against the Blue Jays, with first pitch at 3:07 PM ET. Polymarket currently prices a Pirates victory at 36%, implying roughly 64% probability for a Toronto win. The settlement window extends to 30 May, allowing for postponement resolution should weather or other factors delay the fixture. Conditional tokens on Polygon track both outcomes in USDC denominations, with the contract resolving 50-50 only if the game is cancelled without a make-up or concludes tied—an exceptionally rare occurrence in MLB.

Historically, the Pirates have struggled against AL East opponents, particularly Toronto. Over the past three seasons, Pittsburgh's record against the Blue Jays sits below .500, and the team's overall 2024 performance has lagged expectations. Toronto, conversely, maintains stronger home-field metrics and has shown consistency in May matchups. The current 36% probability reflects Pittsburgh's structural disadvantages: weaker offensive production, inconsistent starting pitching, and Toronto's superior run differential in recent weeks.

Traders should monitor pitching announcements before 23 May, as starter assignments significantly influence matchup dynamics. Recent injury reports from both organisations matter—Toronto's bullpen depth and Pittsburgh's outfield availability could shift the implied probability materially. Weather forecasts for Toronto on game day warrant attention, given the settlement window's postponement clause. Any roster moves or roster-related news from either club in the week preceding the fixture may trigger repricing on the conditional token market.

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 PolyGram, which mirrors the Polymarket order book directly.

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 PolyGram, 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?

PolyGram 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.