Seattle Mariners vs. Athletics

$521.9K Vol
Sep 20, 2026
Active
Probability Trend
Seattle Mariners 98.0%
Athletics 2.0%

Core Summary

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

Currently, O/U 8.5 is dominating the market with an overwhelming 9,955% chance of winning. O/U 9.5 follows in second place at 9,950%, while 1st 5 Innings O/U 6.5 sits in third with 9,950%. The betting volume for this specific market has already reached $521.9K, 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

  • O/U 8.5 (9,955%): Currently commanding the highest probability, O/U 8.5 is heavily favored by the order book. Traders looking to back this outcome face a “Buy Yes” contract price of 9,955¢, signaling a high degree of market conviction. This contract alone has generated $10.6K in volume.

🥈 Tier 2: The Primary Challengers

  • O/U 9.5 (9,950%): Positioned as the most viable alternative, O/U 9.5 maintains a 9,950% chance of resolving true. Its “Buy Yes” shares currently trade at 9,950¢.
  • 1st 5 Innings O/U 6.5 (9,950%): Sitting in third place with a 9,950% probability, the market shows measured skepticism toward 1st 5 Innings O/U 6.5, treating it as an outside wildcard unless momentum shifts.

🥉 Tier 3: The Long-Tail Options (Combining for ~0%)

Beyond the top three choices, a wide field of macro variables and long-shot outcomes are being tracked. While their individual probabilities hover low, they represent crucial hedges for speculative traders:

  • Alternative Options: This includes Seattle Mariners vs. Athletics (9,750%), Spread -1.5 (9,700%), and O/U 10.5 (9,650%).
  • Speculative Volume: Despite low statistical likelihood, certain long-tail contracts like 1st 5 Innings Spread -1.5 are still attracting notable interest.

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)
1O/U 8.59955.0%$10.6K9955¢-9855¢
2O/U 9.59950.0%$383.9K9950¢-9850¢
31st 5 Innings O/U 6.59950.0%9950¢-9850¢
4Seattle Mariners vs. Athletics9750.0%$83.3K9750¢-9650¢
5Spread -1.59700.0%$9.2K9700¢-9600¢
6O/U 10.59650.0%$20.6K9650¢-9550¢
71st 5 Innings Spread -1.59600.0%$59600¢-9500¢
8Spread -2.59150.0%$4.9K9150¢-9050¢
9Spread -3.58850.0%$1708850¢-8750¢
10O/U 11.58250.0%$4.1K8250¢-8150¢
11O/U 12.57800.0%$4.7K7800¢-7700¢
12Spread -6.57500.0%7500¢-7400¢
13O/U 13.56550.0%$2.7K6550¢-6450¢
14Spread -4.55800.0%5800¢-5700¢
15Spread -5.55350.0%5350¢-5250¢
16O/U 14.55300.0%5300¢-5200¢
17Extra Innings5000.0%$1495000¢-4900¢
181st 5 Innings Spread -1.5450.0%$5450¢-350¢
19Spread -2.5175.0%$4.9K175¢-75¢
20Spread -1.5160.0%$9.2K160¢-60¢

Result Rules

In the upcoming MLB game between the Seattle Mariners and Athletics, scheduled for September 12 at 9:40PM 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.

Trade Activities

Here is the trade activities for this event.

Sep 13, 2026

  • 12:03 AM
    NInigiri99
    $6.72

    Bought 16 Over for Seattle Mariners vs. Athletics: O/U 10.5 at 0.42

  • 12:00 AM
    TOTooYoungToWin
    $2.04

    Bought 4.97561 Under for Seattle Mariners vs. Athletics: O/U 8.5 at 0.41

Sep 12, 2026

  • 11:59 PM
    NInigiri99
    $4.34

    Bought 7 Athletics for Spread: Seattle Mariners (-2.5) at 0.62

  • 11:54 PM
    NInigiri99
    $4.68

    Bought 12 Seattle Mariners for Spread: Seattle Mariners (-2.5) at 0.39

  • 11:51 PM
    $3.00

    Bought 5.769231 Under for Seattle Mariners vs. Athletics: O/U 9.5 at 0.52

  • 11:51 PM
    FEfelixroj
    $3.33

    Bought 6.795919 Over for Seattle Mariners vs. Athletics: O/U 9.5 at 0.49

  • 11:38 PM
    POPortilho004
    $1.04

    Bought 2.122449 Over for Seattle Mariners vs. Athletics: O/U 9.5 at 0.49

  • 11:37 PM
    CHChinaskii
    $1.00

    Bought 2.040817 Over for Seattle Mariners vs. Athletics: O/U 9.5 at 0.49

  • 11:36 PM
    POPortilho004
    $1.25

    Bought 2.551021 Over for Seattle Mariners vs. Athletics: O/U 9.5 at 0.49

  • 11:35 PM
    NInigiri99
    $15.54

    Bought 21 Seattle Mariners for Spread: Athletics (-1.5) at 0.74

  • 11:24 PM
    PUPurpleOwl
    $5.00

    Bought 9.615385 Under for Seattle Mariners vs. Athletics: O/U 9.5 at 0.52

  • 11:23 PM
    SASatoshiReika
    $25.00

    Bought 51.020409 Over for Seattle Mariners vs. Athletics: O/U 9.5 at 0.49

Whales Wallets That Are Betting on This Event

SA1
Sassy-Bucket
Event PnL
+$7,100.46
Volume
$19,453.30
Positions
Seattle Mariners
NI2
nigiri99
Event PnL
-$862.04
Volume
$10,529.00
Positions
AthleticsOverOver
HO3
HomeRunHazard
Event PnL
-$98.37
Volume
$10,127.41
Positions
UnderUnderAthletics
PL4
pleaseplease123
Event PnL
-$2,866.81
Volume
$8,309.61
Positions
Athletics
FE5
ferrariChampions2026
Event PnL
-$24.01
Volume
$5,170.96
Positions
Athletics
MA6
MAGATheeStallion
Event PnL
-$1,774.65
Volume
$4,999.00
Positions
Athletics
WA7
wapol
Event PnL
-$9.78
Volume
$4,809.61
Positions
OverOverAthletics
4F8
0x4f2
Event PnL
-$1,740.71
Volume
$4,544.20
Positions
Athletics

Frequently Asked Questions

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

As of the latest update, O/U 8.5 leads the field as the frontrunner with a 9,955% win probability, followed by O/U 9.5 at 9,950% and 1st 5 Innings O/U 6.5 at 9,950%. Total trading volume for this pool has reached $521.9K, indicating deep liquidity and high trader engagement.

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