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405,232

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Seattle Mariners vs. Athletics
polymarket
kalshi
predict
opinion

Who will win Seattle Mariners vs Athletics?

Volume:
$2,139,877

Seattle

all

4 markets

Kalshi

Predict

Polymarket

Opinion

consensus

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 14, 2026

Closed: Sep 13, 12:49 AM 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

Seattle

View
100%
38%
Yes 100¢No 0¢
100¢
N/A
$522,390
N/A
N/A
$312,076
Settled
Yes
predict

Seattle Mariners vs. Athletics

View
2%
Yes 2¢No 98¢
—
$70,784
$54,271
N/A
N/A
N/A
Settled
No
polymarket

Seattle Mariners vs. Athletics

View
0%
57%
Yes 0¢No 100¢
—
N/A
$341,317
N/A
N/A
N/A
Settled
Yes
opinion

Seattle Mariners vs Athletics

View
N/A
N/A
—
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

O/U 9.5

View
100%
47%
Yes 100¢No 0¢
0.1¢
N/A
$42,298
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 12.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$26,306
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 10.5

View
100%
54%
Yes 100¢No 0¢
0.1¢
N/A
$22,874
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 11.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$9,954
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 8.5

View
100%
37%
Yes 100¢No 0¢
0.1¢
N/A
$8,469
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 14.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$1,335
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 13.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$1,268
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 6.5

View
100%
54%
Yes 100¢No 0¢
0.1¢
N/A
$449
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 2.5

View
100%
8%
Yes 100¢No 0¢
0.1¢
N/A
$278
N/A
N/A
N/A
Settled
Yes
polymarket

NRFI

View
100%
6%
Yes 100¢No 0¢
1¢
N/A
$41
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 4.5

View
100%
38%
Yes 100¢No 0¢
0.1¢
N/A
$4
N/A
N/A
N/A
Settled
Yes
kalshi

A's

View
0%
39%
Yes 0¢No 100¢
100¢
N/A
$1,046,008
N/A
N/A
$781,942
Settled
No
polymarket

Spread -1.5

View
0%
45%
Yes 0¢No 100¢
—
N/A
$26,141
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -2.5

View
0%
36%
Yes 0¢No 100¢
—
N/A
$19,788
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

View
0%
28%
Yes 0¢No 100¢
—
N/A
$12,131
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -3.5

View
0%
Yes 0¢No 100¢
—
N/A
$3,675
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -2.5

View
0%
21%
Yes 0¢No 100¢
—
N/A
$851
N/A
N/A
N/A
Settled
Yes
polymarket

Extra Innings

View
0%
92%
Yes 0¢No 100¢
—
N/A
$20
N/A
N/A
N/A
Settled
No
polymarket

Spread -4.5

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

1st 5 Innings Spread -1.5

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

1st 5 Innings Spread -1.5

View
100%
61%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
Total markets: 25 of 28

Intro

This market tracks whether the Seattle Mariners or the Oakland Athletics will win their Major League Baseball game scheduled for September 13, 2026. Currently, the consensus probability favors “Seattle Mariners vs. Athletics: O/U 11.5” at 100.0%. This aggregated view combines data from Polymarket, Kalshi, Predict, and Opinion, and will resolve based on the official result reported at https://www.mlb.com/scores. Keep an eye on the game’s outcome on September 13, 2026, to see which team secures the win and resolves this market.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Kalshi's resolution logic is flawed, stating both teams winning resolves the market to 'Yes', while other platforms resolve based on standard win/loss.Hero tip: Focus trading activity on Opinion, Polymarket, and Predict, as they align on standard win/loss resolution. Avoid Kalshi due to its illogical criteria.

Critical divergence points:

  • Kalshi: Resolves to 'Yes' if either Seattle or Athletics win. This is logically inconsistent as only one team can win.
  • Opinion: Resolves to 'Seattle Mariners' if they win, 'Athletics' if they win, based on final score. If the game is postponed, it remains open until completion. If canceled or tied, it resolves 50-50.
  • Polymarket: Resolves to 'Seattle Mariners' if they win, 'Athletics' if they win. If the game is postponed, it remains open until completion. If canceled or tied, it resolves 50-50.
  • Predict: Resolves to 'Seattle Mariners' if they win, 'Athletics' if they win. If the game is postponed, it remains open until completion. If canceled or tied, it resolves 50-50.
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 Seattle Mariners and Athletics, scheduled for September 13 at 4:05PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. This market will resolve to "Athletics" if the Athletics 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

The event determines the winner of the professional baseball game between Seattle and the A's originally scheduled for September 12, 2026, at 9:40 PM EDT. If Seattle wins, its corresponding market resolves to Yes, and the A's market resolves to No. Conversely, if the A's win, their market resolves to Yes, and Seattle's market resolves to No. Should the game be postponed or delayed but rescheduled within two days, both markets remain open and will close after the rescheduled game concludes. If the game is cancelled or rescheduled to more than two days after the original date, both markets will resolve to a fair price based on the circumstances. Kalshi explicitly states it is not affiliated with the governing league, and all trademarks remain the property of their respective owners.

Predict

In the upcoming MLB game between the Seattle Mariners and Athletics, scheduled for September 13 at 4:05PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. This market will resolve to "Athletics" if the Athletics 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 2026-09-13 20:05 UTC: If the Seattle Mariners win, the market will resolve to "Seattle Mariners". If the Athletics win, the market will resolve to "Athletics". 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

On Polymarket and Opinion, this dashboard tracks the consensus view of whether a particular outcome will occur in the Mariners-Athletics game. Currently, the aggregated volume across both platforms is $2,139,877, with $2,084,874 traded in the last 24 hours. This allows users to see how predictions are evolving and compare opinions across different prediction markets. The dashboard provides a comprehensive overview of the probabilities associated with various aspects of the Mariners-Athletics game, reflecting the collective wisdom of the crowd. This is a great way to gauge expectations for the game.

Prediction market odds, like those displayed for this market, often reflect the collective wisdom of a diverse group of forecasters, potentially offering a different perspective than traditional sportsbooks. Sportsbooks set lines based on their own models and aim to balance action on both sides, while prediction markets allow traders to directly express their beliefs. This can lead to discrepancies, especially when public sentiment strongly diverges from expert analysis. It's useful to compare both to gain a more nuanced understanding of the potential outcome of the Mariners-Athletics game.

Several factors could influence the price of this market before resolution. Any news regarding injuries to key players on either the Mariners or the Athletics would likely have a significant impact. Changes in weather forecasts, particularly if they suggest conditions unfavorable to pitching or hitting, could also shift the odds. Unexpected lineup announcements or managerial decisions could also move the market. Finally, large trades or significant shifts in public sentiment could also contribute to price fluctuations in this market.