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406,065

Markets across

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2,692

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Houston Astros vs. Washington Nationals - First 5 Innings Winner
kalshi
polymarket

Who will win the first 5 innings: Houston Astros or Washington Nationals?

Volume:
$2,875

Washington Nationals

 - Polymarket

Washington Nationals - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 9, 2026

Closed: Jul 8, 6:45 PM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

Washington Nationals

View
100%
Yes 100¢No 0¢
0.9¢
N/A
$1,807
N/A
N/A
N/A
Settled
Yes
kalshi

Washington wins first 3 innings

View
100%
Yes 100¢No 0¢
100¢
N/A
$647
N/A
N/A
$647
Settled
Yes
kalshi

Tie

View
0%
Yes 0¢No 100¢
100¢
N/A
$317
N/A
N/A
$304
Settled
No
polymarket

Draw

View
0%
Yes 0¢No 100¢
—
N/A
$33
N/A
N/A
N/A
Settled
No
kalshi

Houston wins first 3 innings

View
0%
Yes 0¢No 100¢
100¢
N/A
$38
N/A
N/A
$38
Settled
No
polymarket

Houston Astros

View
0%
Yes 0¢No 100¢
—
N/A
$33
N/A
N/A
N/A
Settled
No
Total markets: 6

Description

This event group covers prediction markets on the outcome of the first 5 innings (Polymarket) versus the first 3 innings (Kalshi) of an MLB game between the Houston Astros and Washington Nationals scheduled for July 8, 2026 at 6:45 PM ET. The markets resolve based on which team is ahead or if the game is tied at the specified inning milestone.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: The two platforms measure different inning milestones (Polymarket: 5th inning conclusion; Kalshi: 3rd inning conclusion), making them distinct events rather than equivalent markets on the same outcome.Hero tip: Treat these as separate markets with different risk profiles. The 5-inning market (Polymarket) has more time for score changes and is less predictive of final game outcome. The 3-inning market (Kalshi) resolves earlier but captures only early-game momentum. Do not assume one predicts the other.

Critical divergence points:

  • Polymarket: Resolves on the conclusion of the 5th inning. Three mutually exclusive outcomes: Houston Astros (if leading), Washington Nationals (if leading), or Draw (if tied). Primary source is official MLB statistics; secondary source is credible reporting consensus if official stats unavailable within 24 hours. Postponed games remain open until 5th inning is completed; canceled games with no makeup resolve 50-50.
  • Kalshi: Resolves on the conclusion of the 3rd inning. Resolution logic states Yes if Houston wins first 3 innings, Yes if Washington wins first 3 innings, or Yes if tied in first 3 innings. This suggests all outcomes resolve to Yes, making the market structure unclear or potentially a binary Yes/No on whether the game reaches the 3rd inning.
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 Houston Astros and Washington Nationals, scheduled for July 8 at 6:45 PM ET: This market will resolve to "Houston Astros" if the Houston Astros is winning the game at the conclusion of the 5th inning. This market will resolve to "Washington Nationals" if the Washington Nationals is winning the game at the conclusion of the 5th inning. If the game is tied at the conclusion of the 5th inning, this market will resolve to "Draw". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. 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

Resolution is based on the score at the end of the first 3 innings of the professional baseball game originally scheduled for July 8, 2026 at 6:45 PM EDT. If Houston leads after 3 innings, the Houston strike resolves to Yes. If Washington leads after 3 innings, the Washington strike resolves to Yes. If the score is tied at the end of 3 innings, the Tie strike resolves to Yes and all team strikes resolve to No. If the game is postponed or delayed, the market remains open and closes after the rescheduled game finishes within two days.

Frequently asked questions

Prediction markets and sportsbooks price the same event differently because they operate under distinct incentive structures. Sportsbooks set odds to balance their book and lock in profit margins, while prediction markets reflect pure trader belief—each participant risks real capital on their conviction. This market's odds reflect aggregated trader positions without a built-in spread, often making them more sensitive to late-breaking information. Comparing this market's implied probabilities to major sportsbook lines can reveal where sharp bettors see value or disagreement on first-five-innings outcomes.

Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Each platform attracts different trader demographics, liquidity pools, and fee structures, which naturally produces price variation. Polymarket and Kalshi may also frame the outcome slightly differently—for instance, one platform might emphasize a tie scenario while the other focuses on a single winner. Regulatory differences, settlement timing, and the platforms' respective user bases can all contribute to these spreads. Savvy traders monitor both venues to identify arbitrage opportunities or to gauge which interpretation of the event commands stronger conviction.

Key catalysts include lineup announcements, starting pitcher confirmations, and recent team performance trends heading into game day. Injury updates to star players, weather conditions at the stadium, and betting line movement from sportsbooks can all shift trader sentiment. Real-time game events—such as early scoring, pitching changes, or defensive plays in the first few innings—will drive sharp price swings as traders update their edge. Monitor team news feeds and live game commentary to stay ahead of this market's momentum.