Chicago Cubs vs. Seattle Mariners

$94.1K Vol
Aug 31, 2026
Active
Probability Trend
Chicago Cubs 52.5%
Seattle Mariners 47.5%

Core Summary

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

Currently, 1st 5 Innings O/U 2.5 is dominating the market with an overwhelming 7,050% chance of winning. O/U 6.5 follows in second place at 6,150%, while 1st 5 Innings O/U 3.5 sits in third with 5,650%. The betting volume for this specific market has already reached $94.1K, 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

  • 1st 5 Innings O/U 2.5 (7,050%): Currently commanding the highest probability, 1st 5 Innings O/U 2.5 is heavily favored by the order book. Traders looking to back this outcome face a “Buy Yes” contract price of 7,050¢, signaling a high degree of market conviction.

🥈 Tier 2: The Primary Challengers

  • O/U 6.5 (6,150%): Positioned as the most viable alternative, O/U 6.5 maintains a 6,150% chance of resolving true. Its “Buy Yes” shares currently trade at 6,150¢.
  • 1st 5 Innings O/U 3.5 (5,650%): Sitting in third place with a 5,650% probability, the market shows measured skepticism toward 1st 5 Innings O/U 3.5, 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 Chicago Cubs vs. Seattle Mariners (5,250%), O/U 7.5 (4,950%), and NRFI (4,650%).
  • Speculative Volume: Despite low statistical likelihood, certain long-tail contracts like 1st 5 Innings O/U 4.5 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)
11st 5 Innings O/U 2.57050.0%7050¢-6950¢
2O/U 6.56150.0%6150¢-6050¢
31st 5 Innings O/U 3.55650.0%5650¢-5550¢
4Chicago Cubs vs. Seattle Mariners5250.0%$101.6K5250¢-5150¢
5O/U 7.54950.0%$1.1K4950¢-4850¢
6NRFI4650.0%$1254650¢-4550¢
71st 5 Innings O/U 4.54450.0%$294450¢-4350¢
8O/U 8.54100.0%$614100¢-4000¢
9Spread -1.53850.0%$2083850¢-3750¢
101st 5 Innings O/U 5.53150.0%3150¢-3050¢
11Spread -1.53050.0%$2083050¢-2950¢
121st 5 Innings Spread -1.52850.0%$92850¢-2750¢
13Spread -2.52750.0%$392750¢-2650¢
141st 5 Innings Spread -1.52650.0%$92650¢-2550¢
151st 5 Innings O/U 6.52200.0%2200¢-2100¢
16Spread -2.52000.0%$392000¢-1900¢
17Extra Innings950.0%950¢-850¢

Result Rules

In the upcoming MLB game between the Chicago Cubs and Seattle Mariners, scheduled for August 23 at 4:10PM ET:

This market will resolve to "Chicago Cubs" if the Chicago Cubs 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.

Trade Activities

Here is the trade activities for this event.

Aug 23, 2026

  • 08:11 AM
    PEpeachfuzz1
    $3.00

    Bought 6 Over for Chicago Cubs vs. Seattle Mariners: O/U 7.5 at 0.5

  • 08:05 AM
    PEpeachfuzz1
    $3.00

    Bought 6 Over for Chicago Cubs vs. Seattle Mariners: O/U 7.5 at 0.5

  • 07:53 AM
    JAJAXY7
    $11.00

    Bought 39.285713 Chicago Cubs for Spread: Chicago Cubs (-2.5) at 0.28

  • 07:38 AM
    0X0xC36f9488b4a094B260bF4CBd1ae61137aF64aFaE-1769016718648
    $1.70

    Bought 3.4 Over for Chicago Cubs vs. Seattle Mariners: O/U 7.5 at 0.5

  • 07:37 AM
    0X0xC36f9488b4a094B260bF4CBd1ae61137aF64aFaE-1769016718648
    $1.70

    Bought 3.269229 Chicago Cubs for Chicago Cubs vs. Seattle Mariners at 0.52

  • 07:00 AM
    WGwgbarcenas
    $5.00

    Bought 10.20408 Seattle Mariners for Chicago Cubs vs. Seattle Mariners at 0.49

  • 06:26 AM
    NEnemed
    $2.00

    Bought 3.846152 Chicago Cubs for Chicago Cubs vs. Seattle Mariners at 0.52

  • 05:39 AM
    SAsachin5868
    $1.00

    Bought 1.923075 Chicago Cubs for Chicago Cubs vs. Seattle Mariners at 0.52

  • 05:23 AM
    $4.81

    Bought 9.62 Over for Chicago Cubs vs. Seattle Mariners: O/U 7.5 at 0.5

  • 05:23 AM
    HEheyi8
    $520.71

    Bought 1021 Under for Chicago Cubs vs. Seattle Mariners: O/U 7.5 at 0.51

  • 04:50 AM
    AMAmauris
    $2.00

    Bought 3.846152 Chicago Cubs for Chicago Cubs vs. Seattle Mariners at 0.52

  • 04:20 AM
    $58.30

    Bought 112.115383 Chicago Cubs for Chicago Cubs vs. Seattle Mariners at 0.52

Whales Wallets That Are Betting on This Event

WR1
wr0ngw4yb3tt0r
Event PnL
+$667.50
Volume
$44,499.96
Positions
Chicago Cubs
FE2
ferrariChampions2026
Event PnL
-$644.28
Volume
$44,240.24
Positions
Seattle Mariners
PE3
PetsViljandist
Event PnL
+$150.00
Volume
$30,000.00
Positions
Chicago Cubs
324
0x32b4…3653
Event PnL
-$100.00
Volume
$20,000.00
Positions
Seattle Mariners
VE5
VeryLucky888
Event PnL
-$37.50
Volume
$7,500.00
Positions
Seattle Mariners
SE6
sentrio
Event PnL
-$92.24
Volume
$7,055.06
Positions
Seattle Mariners
HO7
HomeRunHazard
Event PnL
+$10.15
Volume
$1,743.28
Positions
OverChicago CubsChicago Cubs+2
BL8
BlessedSunshine888
Event PnL
-$22.92
Volume
$1,527.77
Positions
Seattle Mariners

Frequently Asked Questions

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

As of the latest update, 1st 5 Innings O/U 2.5 leads the field as the frontrunner with a 7,050% win probability, followed by O/U 6.5 at 6,150% and 1st 5 Innings O/U 3.5 at 5,650%. Total trading volume for this pool has reached $94.1K, indicating deep liquidity and high trader engagement.

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