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Tampa Bay Rays vs. Baltimore Orioles

Five-platform snapshot of "Tampa Bay Rays vs. Baltimore Orioles" — live Polymarket pricing, plus how Kalshi, Betfair and Manifold structure the same contract.

1st 5 Innings O/U 4.5 59% 1st 5 Innings O/U 6.5 59% O/U 7.5 59% O/U 8.5 51% Volume: $272K Liquidity: $630K Closes: 30 Aug 2026
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Tampa Bay Rays vs. Baltimore Orioles

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Who Will Win 2026) Pick
polygram.ink (preferred broker)
59% 41% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle See live odds →
Polymarket (direct)
polymarket.com
59% 41% 0% Geo-blocked in US/UK/EU USDC, on-chain See live odds →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD See live odds →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR See live odds →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) See live odds →

Outcome probabilities

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

OutcomeProbability
1st 5 Innings O/U 4.559%
1st 5 Innings O/U 6.559%
O/U 7.559%
O/U 8.551%
1st 5 Innings O/U 2.550%
1st 5 Innings O/U 3.550%
Extra Innings50%
Tampa Bay Rays vs. Baltimore Orioles49%
1st 5 Innings Spread -1.549%
1st 5 Innings Spread -1.548%
NRFI42%
1st 5 Innings O/U 5.541%
O/U 9.540%
Spread -1.536%
Spread -1.533%
Spread -2.528%
Spread -2.526%

Market context

Tampa Bay Rays vs. Baltimore Orioles. The market is currently pricing the outcome at 49% YES, meaning crowd-implied probability sits at that level. Settlement is scheduled for 2026-08-30T17:35:00Z. Unlike a sportsbook, the price you see is set by buyers and sellers competing in a live order book — there is no house edge or bookmaker margin to fade.

Sports outcome markets resolve from official league data once the contest finishes. Pricing typically tightens through the warm-up window as line-ups, weather, and starting-pitcher data become public, then moves on goals or runs in real time.

Watch for the underlying catalysts that move this category: each official announcement, dataset release, or scheduled milestone generally produces a step change in the implied probability. Trades execute instantly on Polygon, and shares pay $1 each at resolution if your side wins.

Live Data & Statistics

The Polymarket order book prices 1st 5 Innings O/U 4.5 at 59% for "Tampa Bay Rays vs. Baltimore Orioles".

1st 5 Innings O/U 4.5 59% Other 41%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $272K.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win 2026, 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?
Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
Is this market available outside the US?
Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
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.
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Related Topics

Sports