Market Closed
This market has resolved and is no longer trading. Prices shown are the final recorded values.
Arizona Diamondbacks vs. Baltimore Orioles: O/U 8.5
Closed April 14, 2026
Polymarket Price
Volume 24h
$975K
Liquidity
$26K
Bid / Ask
38% / 40%
Spread
2.00pp
Expert Signal
39%
Bayesian YES estimate
Research Summary
Prediction markets currently price "Arizona Diamondbacks vs. Baltimore Orioles: O/U 8.5" at 39% YES / 61% NO. In the last 24 hours, $975K has been traded. A Bayesian estimate puts the probability at 39%. The bid-ask spread is 2.00 percentage points. The market closes on April 14, 2026.
Cite this snapshot
ForecastMind (2026-04-14). "Arizona Diamondbacks vs. Baltimore Orioles: O/U 8.5." Prediction market snapshot: YES 39%, NO 61%. Retrieved from https://forecastmind.org/markets/1972311
This event has 5 active outcome markets. Spread: Baltimore Orioles (-1.5): 52%, Arizona Diamondbacks vs. Baltimore Orioles: O: 39%, Arizona Diamondbacks vs. Baltimore Orioles: O: 32%.
Arizona Diamondbacks vs. Baltimore Orioles: O/U 8.5
Topic Intelligence
✦ AI Analysis
Synthesizes price, cross-venue gaps, Bayesian edge, and event context into a concise brief.
Price History
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Key Moments
First recorded
51% YES
Apr 14, 2026
Dropped below 50% — now favored NO
39%
Apr 14, 2026
Biggest move: -14.0pp
53% → 39%
Apr 14, 2026
Current
39% YES (-14.0pp recent)
Apr 14, 2026
Order Book (YES)
Expected Value Calculator
+1.3%
EV per $ wagered
-0.8%
EV per $ wagered
EV = return on investment if your probability is correct. Kelly = optimal bankroll fraction (½ Kelly is a common conservative choice). Fees not included.
Backtest Strategy
Enter when YES price ≤ this