Seattle Mariners vs. Athletics

$85.3K Vol
Sep 21, 2026
Active
Probability Trend
Seattle Mariners 54.5%
Athletics 45.5%

Core Summary

According to the latest prediction market data for the query “Seattle Mariners vs. Athletics”, traders have formed a strong consensus.

Currently, Extra Innings is dominating the market with an overwhelming 7.5% chance of winning. The betting volume for this specific market has already reached $85.3K, reflecting intense industry interest.

Breakdown of Competitive Tiers

To better assess where each potential outcome stands, the market can be segmented into three distinct trading tiers based on implied probability and contract pricing:

🥇 Tier 1: The Dominant Leader

  • Extra Innings (7.5%): Currently commanding the highest probability, Extra Innings is heavily favored by the order book. Traders looking to back this outcome face a “Buy Yes” contract price of 8¢, signaling a high degree of market conviction. This contract alone has generated $20 in volume.

Comprehensive Order Book & Pricing Dashboard

The table below outlines the full breakdown of contract prices, probabilities, and market depth for all listed outcomes in this prediction pool:

RankPredicted OutcomeWin ProbabilityTrading VolumeBuy Yes (Cost)Buy No (Cost)
1Extra Innings7.5%$2093¢

Result Rules

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.

AI Valuation Analysis: Finding Market Mispricings & EV Gaps

While human consensus and speculative volume shape the broader prediction market, our quantitative algorithms offer a data-driven counter-perspective. By analyzing fundamental signals, underlying trends and historical distributions, our AI Valuation model calculates an independent “Fair Value” probability for each outcome.

Comparing this Fair Value against the current Trade Value uncovers major disparities — known as the Expected Value (EV) Gap. Contracts with a positive EV Gap represent statistically underpriced outcomes, whereas a negative EV Gap flags a potential market overreaction.

Top AI Alpha & Mispriced Arbitrage Opportunities

Based on the latest data model run, several key contracts stand out with significant deviations:

  • The Best Value Play (Highest EV) Our model identifies Extra Innings as the premium value opportunity on the board. While the market only assigns it a 7.5% trading probability, our AI’s Fair Value assessment sits at 9.7% — yielding an impressive +2.2% EV Gap.
MarketTrade ValueFair ValueEV Gap
Extra InningsBest EV7.5%9.7%+2.2%

Trade Activities

Here is the trade activities for this event.

Sep 13, 2026

  • 11:39 AM
    ONoneheadedlebron
    $13.25

    Bought 25 Over for Seattle Mariners vs. Athletics: O/U 9.5 at 0.53

  • 11:37 AM
    JEJeremyEllis11
    $5.00

    Bought 10.869566 Over for Seattle Mariners vs. Athletics: O/U 10.5 at 0.46

  • 09:56 AM
    0X0xfF00d8fC56ab4346C60F824Fe9f1b4880A7774D7-1765004726931
    $2.90

    Bought 5 Seattle Mariners for Seattle Mariners vs. Athletics at 0.58

  • 08:22 AM
    JAJAXY7
    $11.00

    Bought 37.931035 Athletics for Spread: Athletics (-1.5) at 0.29

  • 08:07 AM
    TATashTrilogy
    $1.48

    Bought 2.551723 Seattle Mariners for Seattle Mariners vs. Athletics at 0.58

  • 07:59 AM
    DADanielTsai
    $1.00

    Bought 1.724138 Seattle Mariners for Seattle Mariners vs. Athletics at 0.58

  • 06:48 AM
    $20.00

    Bought 46.51 Athletics for Seattle Mariners vs. Athletics at 0.43

  • 06:47 AM
    282855555A48ee7ec2e67272701651BFe77034eBE8
    $5.00

    Bought 8.62069 Seattle Mariners for Seattle Mariners vs. Athletics at 0.58

  • 06:47 AM
    YIyixinh
    $20.00

    Bought 34.48 Seattle Mariners for Seattle Mariners vs. Athletics at 0.58

  • 05:54 AM
    HOhonduraslover
    $9.90

    Bought 17.068966 Seattle Mariners for Seattle Mariners vs. Athletics at 0.58

  • 05:13 AM
    5F5f5a
    $2.66

    Bought 7 Under for Seattle Mariners vs. Athletics: O/U 8.5 at 0.38

  • 04:27 AM
    FOForecastication2
    $18.40

    Bought 20 No for Will the game go to extra innings?: Seattle Mariners vs. Athletics at 0.92

Whales Wallets That Are Betting on This Event

381
0x3814…2998
Event PnL
-$2.00
Volume
$400.00
Positions
Athletics
HO2
HomeRunHazard
Event PnL
+$1.85
Volume
$370.00
Positions
Seattle Mariners
MI3
Miguel262144
Event PnL
+$0.33
Volume
$22.00
Positions
Seattle Mariners
F64
0xf6b6…f6df
Event PnL
-$0.33
Volume
$22.00
Positions
Athletics
AN5
antec
Event PnL
+$0.10
Volume
$20.00
Positions
Seattle Mariners
FO6
Forecastication2
Event PnL
+$0.30
Volume
$20.00
Positions
No
US7
Useraxe
Event PnL
-$0.20
Volume
$10.00
Positions
Yes
FO8
forecastication4
Event PnL
-$0.10
Volume
$10.00
Positions
Yes

Frequently Asked Questions

What is the current market consensus on "Seattle Mariners vs. Athletics"?

As of the latest update, Extra Innings leads the field as the frontrunner with a 7.5% win probability. Total trading volume for this pool has reached $85.3K, indicating deep liquidity and high trader engagement.

How does the AI Fair Value differ from the live Market Trade Value?

The live Market Trade Value reflects public sentiment, order-book momentum and speculative capital. Our AI Fair Value is computed independently with quantitative models that strip out hype to focus on underlying data. When the two diverge, it creates an EV Gap, flagging where the market may be mispricing an outcome.

Which outcome represents the highest Expected Value (EV) right now?

Our latest run flags Extra Innings as the most significant mispricing. While the market trades it at a 7.5% implied probability, our AI calculates a Fair Value of 9.7% — an Expected Value gap of +2.2%, making it the premium value play in this pool.

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