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Tampa Bay Rays vs. Baltimore Orioles

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

O/U 5.5 67% 1st 5 Innings Spread -1.5 50% Extra Innings 50% Tampa Bay Rays vs. Baltimore Orioles 48% Volume: $473K Liquidity: $338K Closes: 30 Aug 2026
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Tampa Bay Rays vs. Baltimore Orioles

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Best Prediction Markets) Pick
polygram.ink (preferred broker)
67% 33% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Live odds →
Polymarket (direct)
polymarket.com
67% 33% 0% Geo-blocked in US/UK/EU USDC, on-chain Live odds →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Live odds →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Live odds →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Live odds →

Outcome probabilities

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

OutcomeProbability
O/U 5.567%
1st 5 Innings Spread -1.550%
Extra Innings50%
Tampa Bay Rays vs. Baltimore Orioles48%
1st 5 Innings O/U 2.548%
O/U 6.540%
1st 5 Innings O/U 3.537%
Spread -1.533%
Spread -1.531%
1st 5 Innings Spread -1.528%
O/U 7.528%
O/U 8.525%
Spread -2.522%
Spread -2.521%
1st 5 Innings O/U 4.517%
O/U 9.517%
1st 5 Innings O/U 5.511%
1st 5 Innings O/U 6.57%
NRFI0%

Market context

Based on real-money crowd forecasting, tampa bay rays vs. baltimore orioles stands at 67% likelihood according to current market consensus. In the upcoming MLB game between the Tampa Bay Rays and Baltimore Orioles, scheduled for August 23 at 1:35PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays…

Live Data & Statistics

The Polymarket order book prices O/U 5.5 at 67% for "Tampa Bay Rays vs. Baltimore Orioles".

O/U 5.5 67% Other 33%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $473K.

Methodology

We track Tampa Bay Rays vs. Baltimore Orioles across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

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

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.
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?
On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets 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

Sports