Washington Nationals vs. St. Louis Cardinals

$244.7K Vol
Sep 27, 2026
Active
Probability Trend
St. Louis Cardinals 50.5%
Washington Nationals 49.5%

Core Summary

According to the latest prediction market data for the query “Washington Nationals vs. St. Louis Cardinals”, traders have formed a strong consensus.

Currently, Washington Nationals O/U 1.5 is dominating the market with an overwhelming 8,800% chance of winning. St. Louis Cardinals O/U 2.5 follows in second place at 8,400%, while Washington Nationals O/U 2.5 sits in third with 8,250%. The betting volume for this specific market has already reached $244.7K, 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

  • Washington Nationals O/U 1.5 (8,800%): Currently commanding the highest probability, Washington Nationals O/U 1.5 is heavily favored by the order book. Traders looking to back this outcome face a “Buy Yes” contract price of 8,800¢, signaling a high degree of market conviction.

🥈 Tier 2: The Primary Challengers

  • St. Louis Cardinals O/U 2.5 (8,400%): Positioned as the most viable alternative, St. Louis Cardinals O/U 2.5 maintains a 8,400% chance of resolving true. Its “Buy Yes” shares currently trade at 8,400¢.
  • Washington Nationals O/U 2.5 (8,250%): Sitting in third place with a 8,250% probability, the market shows measured skepticism toward Washington Nationals O/U 2.5, 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 1st 5 Innings O/U 2.5 (7,800%), Washington Nationals O/U 3.5 (7,550%), and St. Louis Cardinals O/U 3.5 (7,500%).
  • Speculative Volume: Despite low statistical likelihood, certain long-tail contracts like 1st 5 Innings O/U 3.5 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)
1Washington Nationals O/U 1.58800.0%8800¢-8700¢
2St. Louis Cardinals O/U 2.58400.0%8400¢-8300¢
3Washington Nationals O/U 2.58250.0%8250¢-8150¢
41st 5 Innings O/U 2.57800.0%7800¢-7700¢
5Washington Nationals O/U 3.57550.0%7550¢-7450¢
6St. Louis Cardinals O/U 3.57500.0%7500¢-7400¢
71st 5 Innings O/U 3.56500.0%6500¢-6400¢
8Washington Nationals O/U 5.56150.0%6150¢-6050¢
9O/U 7.56050.0%$2226050¢-5950¢
10St. Louis Cardinals O/U 5.56000.0%6000¢-5900¢
11St. Louis Cardinals O/U 6.55500.0%5500¢-5400¢
121st 5 Innings O/U 4.55350.0%$1.3K5350¢-5250¢
13O/U 8.55250.0%$4795250¢-5150¢
14NRFI5050.0%$2805050¢-4950¢
15Washington Nationals vs. St. Louis Cardinals4950.0%$240.5K4950¢-4850¢
16Washington Nationals O/U 4.54650.0%4650¢-4550¢
17St. Louis Cardinals O/U 4.54450.0%4450¢-4350¢
181st 5 Innings O/U 5.54250.0%$34250¢-4150¢
19O/U 9.54150.0%$3614150¢-4050¢
20Spread -1.53750.0%$1.6K3750¢-3650¢
21Spread -1.53350.0%$1.6K3350¢-3250¢
221st 5 Innings Spread -1.53150.0%$103150¢-3050¢
231st 5 Innings O/U 6.53050.0%3050¢-2950¢
241st 5 Innings Spread -1.53000.0%$103000¢-2900¢
25Spread -2.52850.0%$822850¢-2750¢
26Spread -2.52550.0%$822550¢-2450¢
27Extra Innings900.0%900¢-800¢

Result Rules

In the upcoming MLB game between the Washington Nationals and St. Louis Cardinals, scheduled for September 19 at 7:15PM ET:

This market will resolve to "Washington Nationals" if the Washington Nationals win the game.

This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals 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 19, 2026

  • 09:43 PM
    YOYosooooooo
    $1.85

    Bought 3.627451 St. Louis Cardinals for Washington Nationals vs. St. Louis Cardinals at 0.51

  • 09:42 PM
    YOYosooooooo
    $1.85

    Bought 3.7 Washington Nationals for Washington Nationals vs. St. Louis Cardinals at 0.5

  • 09:41 PM
    LUlurkr
    $1.00

    Bought 1.960785 St. Louis Cardinals for Washington Nationals vs. St. Louis Cardinals at 0.51

  • 09:33 PM
    YOYosooooooo
    $1.85

    Bought 3.627451 St. Louis Cardinals for Washington Nationals vs. St. Louis Cardinals at 0.51

  • 09:32 PM
    YOYosooooooo
    $1.85

    Bought 3.7 Washington Nationals for Washington Nationals vs. St. Louis Cardinals at 0.5

  • 09:31 PM
    YOYosooooooo
    $1.85

    Bought 3.627451 St. Louis Cardinals for Washington Nationals vs. St. Louis Cardinals at 0.51

  • 09:29 PM
    YOYosooooooo
    $1.93

    Sold 3.86 St. Louis Cardinals for Washington Nationals vs. St. Louis Cardinals at 0.5

  • 09:29 PM
    YOYosooooooo
    $1.97

    Bought 3.862746 St. Louis Cardinals for Washington Nationals vs. St. Louis Cardinals at 0.51

  • 09:28 PM
    YOYosooooooo
    $1.85

    Bought 3.7 Washington Nationals for Washington Nationals vs. St. Louis Cardinals at 0.5

  • 09:28 PM
    YOYosooooooo
    $1.85

    Bought 3.627451 St. Louis Cardinals for Washington Nationals vs. St. Louis Cardinals at 0.51

  • 09:27 PM
    YOYosooooooo
    $1.85

    Bought 3.7 Washington Nationals for Washington Nationals vs. St. Louis Cardinals at 0.5

  • 09:24 PM
    TITimPenis
    $1.86

    Bought 3.72 Washington Nationals for Washington Nationals vs. St. Louis Cardinals at 0.5

Whales Wallets That Are Betting on This Event

PL1
pleaseplease123
Event PnL
-$1,000.00
Volume
$200,000.00
Positions
Washington Nationals
SA2
Sassy-Bucket
Event PnL
+$740.10
Volume
$148,020.25
Positions
St. Louis Cardinals
DO3
Donkey14
Event PnL
+$200.00
Volume
$40,000.00
Positions
St. Louis Cardinals
NI4
nigiri99
Event PnL
-$0.85
Volume
$31,610.00
Positions
Washington Nationals
325
0x32b4…3653
Event PnL
-$314.23
Volume
$10,282.00
Positions
St. Louis Cardinals
HO6
HomeRunHazard
Event PnL
+$48.38
Volume
$9,609.97
Positions
St. Louis CardinalsWashington NationalsUnder
FB7
0xfB07…2542
Event PnL
-$180.69
Volume
$7,227.55
Positions
St. Louis Cardinals
MA8
MAGATheeStallion
Event PnL
+$86.06
Volume
$4,212.65
Positions
Washington Nationals

Frequently Asked Questions

What is the current market consensus on "Washington Nationals vs. St. Louis Cardinals"?

As of the latest update, Washington Nationals O/U 1.5 leads the field as the frontrunner with a 8,800% win probability, followed by St. Louis Cardinals O/U 2.5 at 8,400% and Washington Nationals O/U 2.5 at 8,250%. Total trading volume for this pool has reached $244.7K, indicating deep liquidity and high trader engagement.

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