TOTAL VOLUME:

$116.9b

24H VOL:

$84,685,924

24H TRANSACTIONS:

1,362,287,844

OPEN INTEREST:

$1,163,100,123

337,636

Markets across

33,310

events

MATCHED EVENTS:

4,273

PLATFORM COVERAGE:

5

Polymarket:

42%

VS.

Kalshi:

58%

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Philadelphia Phillies vs. Seattle Mariners
Sports
polymarket
predict
kalshi
opinion

Who will win Philadelphia Phillies vs Seattle Mariners?

Total volume:
$593,353
Volume 24h:
$490,774N/A
Liquidity:
$28,197
92%
Open interest:
$2,676
746%

NRFI

 - Polymarket

NRFI - Polymarket

100%

+5%

1W

News

Positive

Negative

Neutral

Hover marker for details

Aug 20

Aug 21

Aug 22

Aug 23

Aug 24

Aug 25

Aug 27

Vol.

$80.3k

·

Resolves Sep 2, 2026

Closed: Aug 26, 4:34 PM EST

polymarket

Polymarket

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Outcome
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24h
7d
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Total markets: 25 of 29

Description

This event group covers the upcoming MLB game between the Philadelphia Phillies and Seattle Mariners scheduled for August 26, 2026. Markets will resolve based on the game's outcome, including win conditions, tie scenarios, cancellations, and specific inning performance.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

All platforms agree on using MLB.com as the primary resolution source and share consistent rules for wins, ties, cancellations, and postponed games.Primary resolution logic: MLB.com

Core resolution logic:

  • If the Philadelphia Phillies win, markets resolve to 'Philadelphia Phillies'.
  • If the Seattle Mariners win, markets resolve to 'Seattle Mariners'.
  • If the game ends in a tie, is canceled, or postponed without a make-up game, markets resolve 50-50.
  • The 'Will there be a run scored in the first inning?' market resolves to 'Yes' if at least one run is scored in the first inning by either team, otherwise 'No'.

Edge cases & clarifications:

  • Postponement: If the game is postponed, markets remain open until the make-up game is completed.
  • Cancellation: If the game is canceled entirely with no make-up game, markets resolve 50-50.
  • Tie: If the game officially ends in a tie, markets resolve 50-50.
Timing: Resolution occurs after the official final statistics are published on MLB.com, typically within 24 hours after the event's conclusion.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.
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Polymarket

In the upcoming MLB game between the Philadelphia Phillies and Seattle Mariners, scheduled for August 26 at 4:10PM ET: This market will resolve to "Philadelphia Phillies" if the Philadelphia Phillies win the game. This market will resolve to "Seattle Mariners" if the Seattle Mariners 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

If at least 1 extra inning is played in the Philadelphia vs Seattle professional baseball game originally scheduled for Aug 24, 2026 at 9:40 PM EDT, then the market resolves to Yes.

Predict

In the upcoming MLB game between the Philadelphia Phillies and Seattle Mariners, scheduled for August 26 at 4:10PM ET: This market will resolve to "Philadelphia Phillies" if the Philadelphia Phillies win the game. This market will resolve to "Seattle Mariners" if the Seattle Mariners 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.

Opinion

In the upcoming MLB game, scheduled for 2026-08-26 20:10 UTC: If the Philadelphia Phillies win, the market will resolve to "Philadelphia Phillies". If the Seattle Mariners win, the market will resolve to "Seattle Mariners". The result will be determined based on the final score including any extra innings. 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 officially ends in a tie, this market will resolve 50-50. Resolution Source: https://www.mlb.com/ Note: Opinion will resolve strictly based on the first officially published result from the designated source. Any subsequent revisions will not affect this resolution.

Frequently asked questions

The dashboard for the Phillies vs. Mariners matchup market aggregates real-time data from multiple venues, showing how traders price the contest. It displays total volume of $0 and 24-hour volume of $0, letting you see where interest is concentrated. The view pulls together odds, liquidity, and recent activity so users can monitor sentiment around this market as it evolves toward resolution.

On Polymarket and Opinion, pricing mechanisms and user bases vary, creating natural gaps. Polymarket and Opinion can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. For instance, one platform might have more retail traders reacting quickly to news, while the other could see slower, larger positions from whales. This can push their odds in different directions, especially when the game’s momentum shifts or starting lineups change.

Injuries, weather delays, and pitcher changes can all shift this market as the game approaches. Key starters entering or exiting the rotation, plus any last-minute lineup updates, often drive rapid price swings. Traders will also watch early-inning performance live, since that can set the tone for how the rest of the contest unfolds.