Baltimore Orioles vs. Boston Red Sox

Platform comparison

Market context

The Baltimore Orioles face the Boston Red Sox on 2 June at 6:45 PM ET in an American League East matchup. On Polymarket, this contract is currently priced at 100% YES, indicating the market perceives certainty that the game will occur and resolve to one team or the other rather than being postponed, cancelled, or ending in a tie. The conditional token structure on Polygon means traders hold USDC-denominated positions that settle based on official MLB final statistics, with the settlement window extending to 9 June to accommodate any scheduling delays.

Historical precedent suggests such extreme pricing typically reflects either minimal perceived risk of postponement during early June weather conditions in the Northeast, or insufficient liquidity depth to move the market from its initial seeding. The Red Sox and Orioles play 19 games annually in the regular season, with June fixtures rarely affected by weather-related cancellations compared to April or September scheduling complications.

Traders should monitor weather forecasts for the Boston area in the days preceding the fixture, as thunderstorms or severe conditions could trigger postponement. Roster announcements regarding key players' availability—particularly starting pitchers or position players with recent injuries—typically emerge 24–48 hours before game time and could shift underlying win probability assessments, though the 100% pricing suggests the market is currently pricing only game-occurrence risk rather than competitive outcome uncertainty.

Methodology

This page reviews Baltimore Orioles vs. Boston Red Sox across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Resolution source: This market settles from the official publication at https://www.mlb.com/. A proposer submits the result to the UMA Optimistic Oracle on Polygon, the two-hour challenge window opens, and the smart contract pays out in USDC.

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.

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.