Detroit Tigers vs. Baltimore Orioles

Platform comparison

Active sub-markets

Market context

The Tigers and Orioles are scheduled to meet in Baltimore on 22 May, with the market currently leaning slightly to Detroit at 45% YES. For a programmatic approach, that kind of number is best treated as a live prior rather than a forecast to anchor on: in MLB head-to-head markets, prices move quickly on pitcher confirmation, line-up scratches and weather, and the settlement rules mean a postponement simply extends exposure until the game is actually completed. Recent comparable results between these clubs show how volatile this fixture can be; Baltimore and Detroit have traded wins in recent seasons, including a Tigers doubleheader sweep over the Orioles in April 2025, which is a reminder that small sample trends are weak inputs compared with game-day availability.

The main catalysts to monitor are the official starter announcements, batting orders, and any delay risk at Camden Yards, because those are the variables most likely to shift a bot’s fair value estimate before first pitch. Ticketing listings and live event pages place the game at 7:05 pm local time, while the market settlement window runs well beyond the scheduled start, so stale pricing can persist if there is a postponement. For a trader using conditional orders or automated alerts, the practical checks are straightforward: confirm both starters, watch for lineup rest on travel days, and reprice if the Orioles receive a home-field edge from weather or a late pitching change. MLB.com’s game story page for this fixture and ESPN’s live game listing both indicate the matchup is set as a normal regular-season game, with no special-series context that would alter settlement mechanics.

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 PolyGram, 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

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.

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, 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.