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Baltimore Orioles vs. Boston Red Sox

Live odds for "Baltimore Orioles vs. Boston Red Sox" pulled from the Polygon order book, alongside the platform attributes of every venue that runs this contract.

1st 5 Innings O/U 2.5 76% 1st 5 Innings O/U 3.5 62% O/U 8.5 52% 1st 5 Innings O/U 4.5 51% Volume: $447K Liquidity: $620K Closes: 28 Jul 2026
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Baltimore Orioles vs. Boston Red Sox

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via PolyGram) Pick
polygram.ink (preferred broker)
76% 24% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Open the market →
Polymarket (direct)
polymarket.com
76% 24% 0% Geo-blocked in US/UK/EU USDC, on-chain Open the market →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Open the market →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Open the market →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Open the market →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
1st 5 Innings O/U 2.576%
1st 5 Innings O/U 3.562%
O/U 8.552%
1st 5 Innings O/U 4.551%
Baltimore Orioles vs. Boston Red Sox49%
NRFI47%
1st 5 Innings O/U 5.537%
Spread -1.537%
Spread -1.535%
1st 5 Innings Spread -1.528%
1st 5 Innings Spread -1.528%
1st 5 Innings O/U 6.526%
1st 5 Innings Spread -2.518%
1st 5 Innings Spread -2.518%
Extra Innings9%

Market context

Market consensus: 76% chance of baltimore orioles vs. boston red sox. Prediction markets aggregate real capital to produce this probability signal. In the upcoming MLB game between the Baltimore Orioles and Boston Red Sox, scheduled for July 21 at 7:10PM ET: This market will resolve to "Baltimore Orioles" if the Baltimore Ori…

Live Data & Statistics

The Polymarket order book prices 1st 5 Innings O/U 2.5 at 76% for "Baltimore Orioles vs. Boston Red Sox".

1st 5 Innings O/U 2.5 76% Other 24%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $447K.

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

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?
Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
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?
On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
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.
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Related Topics

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