Pittsburgh Pirates vs. Toronto Blue Jays

Platform comparison

Active sub-markets

Market context

Polymarket is pricing the Pittsburgh Pirates at about 41% to win this USDC-settled, Polygon-based conditional token contract, which leaves the Toronto Blue Jays as the narrower favourite. That pricing is not far from a coin-flip, and it reflects how close these clubs have been in recent match-ups rather than any strong season-long gap. Toronto has won seven of the last 10 meetings with Pittsburgh, while the wider head-to-head record cited by recent data favours the Blue Jays comfortably. The Pirates’ 5-2 win in Pittsburgh in August 2025 is a useful reminder that the underdog can still cash when the pitching and defence line up.

For context, the current number sits in the middle of the market rather than at either extreme, so late movement is likely to come from line-up news and the confirmed starter matchup. ESPN’s live game page for 22 May shows Toronto with the stronger season-to-date team batting line in several basic categories, including batting average, runs, hits and on-base percentage, which helps explain why the market has the Blue Jays ahead. The Blue Jays also have a recent note of momentum from George Springer’s solo home run on 21 May, while Pittsburgh’s path to an upset usually depends on limiting traffic and taking advantage of any Toronto mistakes. Because the contract resolves only on the official final result, rain delays, postponements and any schedule changes matter as much to settlement timing as to the baseball itself.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Pittsburgh Pirates vs. Toronto Blue Jays 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

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.

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 PolyGram?

Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

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