TOTAL VOLUME:

$134.1b

24H VOL:

$141,541,542

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,440,096,988

406,065

Markets across

30,522

events

MATCHED EVENTS:

2,692

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Baltimore Orioles vs. Houston Astros
polymarket
kalshi
predict

Who will win Baltimore Orioles vs Houston Astros?

Volume:
$10,025,502

Baltimore

 - Kalshi

Baltimore - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 19, 2026

Closed: Jul 18, 7:44 PM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

Baltimore

View
100%
Yes 100¢No 0¢
100¢
N/A
$4,514,265
N/A
N/A
$1,934,022
Settled
Yes
polymarket

Baltimore Orioles vs. Houston Astros

100%
Yes 100¢No 0¢
0.1¢
N/A
$1,054,806
N/A
N/A
N/A
Settled
Yes
predict

Baltimore Orioles vs. Houston Astros

99%
Yes 99¢No 1¢
—
$2,049
$6,760
N/A
N/A
N/A
Settled
No
polymarket

Spread -1.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$35,829
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 5.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$7,719
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 4.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$1,785
N/A
N/A
N/A
Settled
Yes
polymarket

Extra Innings

100%
Yes 100¢No 0¢
0.1¢
N/A
$193
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 3.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$44
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 2.5

100%
Yes 100¢No 0¢
0.1¢
N/A
$35
N/A
N/A
N/A
Settled
Yes
kalshi

Houston

0%
Yes 0¢No 100¢
100¢
N/A
$4,240,879
N/A
N/A
$2,102,538
Settled
No
polymarket

O/U 8.5

0%
Yes 0¢No 100¢
—
N/A
$138,625
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 9.5

0%
Yes 0¢No 100¢
—
N/A
$12,156
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 6.5

0%
Yes 0¢No 100¢
—
N/A
$8,534
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 4.5

0%
Yes 0¢No 100¢
—
N/A
$1,625
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -2.5

0%
Yes 0¢No 100¢
—
N/A
$850
N/A
N/A
N/A
Settled
Yes
polymarket

NRFI

0%
Yes 0¢No 100¢
—
N/A
$638
N/A
N/A
N/A
Settled
No
polymarket

O/U 7.5

0%
Yes 0¢No 100¢
—
N/A
$320
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 5.5

0%
Yes 0¢No 100¢
—
N/A
$187
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -2.5

0%
Yes 0¢No 100¢
—
N/A
$61
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -2.5

0%
Yes 0¢No 100¢
—
N/A
$59
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 2.5

0%
Yes 0¢No 100¢
—
N/A
$55
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 3.5

0%
Yes 0¢No 100¢
—
N/A
$55
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

0%
Yes 0¢No 100¢
—
N/A
$18
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 6.5

0%
Yes 0¢No 100¢
—
N/A
$5
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -1.5

0%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
Total markets: 25 of 26

Intro

This market tracks the outcome of an MLB game between the Baltimore Orioles and Houston Astros scheduled for July 18, 2026 at 4:10 PM ET. The aggregated consensus across Polymarket, Kalshi, and Predict shows 100.0% probability for the over/under 2.5 runs outcome. Resolution will be determined by official MLB statistics published on MLB.com. Watch for the final game result on July 18, 2026, which will settle all related in-game and winner markets.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Kalshi uses a binary Yes/No structure that resolves Yes for either team winning, but omits explicit edge-case handling for ties, cancellations, and postponements. Polymarket and Predict provide clear 50-50 resolution for these scenarios.Hero tip: Polymarket and Predict offer superior clarity and enforceability for edge cases. If you believe tie or cancellation risk is >5%, trade on Polymarket/Predict. Kalshi's incomplete specification creates settlement ambiguity.

Critical divergence points:

  • Polymarket: Two-outcome market: resolves to 'Baltimore Orioles' if Orioles win, 'Houston Astros' if Astros win. Postponed games remain open until completion. Canceled games with no makeup or ties resolve 50-50. Resolution source: official MLB statistics within 24 hours, or credible reporting consensus.
  • Predict: Two-outcome market: resolves to 'Baltimore Orioles' if Orioles win, 'Houston Astros' if Astros win. Postponed games remain open until completion. Canceled games with no makeup or ties resolve 50-50. Resolution source: official MLB statistics within 24 hours, or credible reporting consensus.
  • Kalshi: Binary Yes/No market: resolves Yes if Baltimore wins OR Houston wins. No explicit handling of postponements, cancellations, ties, or makeup games. Incomplete edge-case specification creates settlement risk.
Our PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.

Polymarket

In the upcoming MLB game between the Baltimore Orioles and Houston Astros, scheduled for July 18 at 4:10PM ET: This market will resolve to "Baltimore Orioles" if the Baltimore Orioles win the game. This market will resolve to "Houston Astros" if the Houston Astros win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.

Kalshi

This event covers the Baltimore vs Houston professional baseball game originally scheduled for July 18, 2026 at 4:10 PM EDT. Resolution is determined by the final outcome of the game: Baltimore victory resolves to Yes for the Baltimore market, while Houston victory resolves to Yes for the Houston market. If the game is postponed or delayed, the market remains open and closes after the rescheduled game concludes within two days. Should the game be cancelled or rescheduled more than two days away, the market resolves to a fair price in accordance with applicable rules.

Predict

In the upcoming MLB game between the Baltimore Orioles and Houston Astros, scheduled for July 18 at 4:10PM ET: This market will resolve to "Baltimore Orioles" if the Baltimore Orioles win the game. This market will resolve to "Houston Astros" if the Houston Astros win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.

Frequently asked questions

This dashboard aggregates prediction market data across Polymarket and Predict, tracking real-time odds on multiple outcomes tied to the Orioles vs. Astros matchup. Traders on both platforms are currently pricing various scenarios, from run-scoring in early innings to final game results. The combined volume of $10,025,502 reflects active interest across venues. By monitoring both platforms side by side, you can spot consensus views and identify where the two communities diverge on likely outcomes.

Prediction markets like Polymarket and Predict operate on crowd-sourced pricing, where traders buy and sell shares tied to outcomes. Unlike traditional sportsbooks, which set fixed lines and manage risk through juice, prediction markets reflect real-time supply and demand. This can lead to sharper, more dynamic odds—especially as new information emerges. However, sportsbooks often move faster on breaking news, while prediction markets may lag slightly. Both venues ultimately aim to price the same underlying event, but their mechanisms and participant bases create natural differences in timing and precision.