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404,028

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Washington Nationals vs. St. Louis Cardinals
opinion
polymarket
predict
kalshi

Who will win Washington Nationals vs St. Louis Cardinals?

Volume:
$3,543,448

Washington

 - Kalshi

Washington - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 20, 2026

Closed: Sep 19, 11:19 PM 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

Washington

View
100%
54%
Yes 100¢No 0¢
100¢
N/A
$1,077,993
N/A
N/A
$479,024
Settled
Yes
polymarket

O/U 5.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$600,028
N/A
N/A
N/A
Settled
Yes
polymarket

Washington Nationals vs. St. Louis Cardinals

View
100%
54%
Yes 100¢No 0¢
0.1¢
N/A
$531,181
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 7.5

View
100%
40%
Yes 100¢No 0¢
0.1¢
N/A
$16,093
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

View
100%
66%
Yes 100¢No 0¢
0.1¢
N/A
$14,059
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -2.5

View
100%
75%
Yes 100¢No 0¢
0.1¢
N/A
$4,654
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 8.5

View
100%
48%
Yes 100¢No 0¢
0.1¢
N/A
$3,538
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 9.5

View
100%
58%
Yes 100¢No 0¢
0.1¢
N/A
$3,260
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 6.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$2,267
N/A
N/A
N/A
Settled
Yes
polymarket

NRFI

View
100%
49%
Yes 100¢No 0¢
0.1¢
N/A
$280
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 11.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$104
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -1.5

View
100%
70%
Yes 100¢No 0¢
1¢
N/A
$10
N/A
N/A
N/A
Settled
Yes
polymarket

Washington Nationals O/U 1.5

View
100%
Yes 100¢No 0¢
1¢
N/A
$5
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 10.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$5
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 4.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$5
N/A
N/A
N/A
Settled
Yes
predict

Washington Nationals vs. St. Louis Cardinals

View
99%
53%
Yes 99¢No 1¢
—
$26,105
$13,630
N/A
N/A
N/A
Settled
No
kalshi

St. Louis

View
0%
55%
Yes 0¢No 100¢
100¢
N/A
$1,271,840
N/A
N/A
$585,893
Settled
No
polymarket

Spread -2.5

View
0%
28%
Yes 0¢No 100¢
—
N/A
$1,499
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 4.5

View
0%
54%
Yes 0¢No 100¢
—
N/A
$1,348
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

View
0%
37%
Yes 0¢No 100¢
—
N/A
$1,284
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -3.5

View
0%
Yes 0¢No 100¢
—
N/A
$253
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 13.5

View
0%
Yes 0¢No 100¢
—
N/A
$105
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 14.5

View
0%
Yes 0¢No 100¢
—
N/A
$5
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 5.5

View
0%
42%
Yes 0¢No 100¢
—
N/A
$3
N/A
N/A
N/A
Settled
Yes
opinion

Washington Nationals vs St.Louis Cardinals

View
N/A
N/A
—
N/A
N/A
N/A
N/A
N/A
Settled
No
Total markets: 25 of 39

Description

This group resolves to the winner of the MLB game between the Washington Nationals and the St. Louis Cardinals scheduled for September 19, 2026. Markets also exist for various in-game events such as first inning runs, total runs, and spreads. All platforms rely on official MLB statistics for resolution.

PredictionHero - Resolution Divergence Alerts (RDA)

Unified Resolution Criteria (Consistent across platforms)

All platforms consistently define resolution based on the final game outcome and share the same fallback resolution for ties or cancellations.Primary resolution logic: MLB.com

Core resolution logic:

  • The market resolves to the winning team based on the final score.
  • If the game is canceled without a makeup game, or ends in a tie, the market resolves 50-50.
  • Resolution is based on official MLB statistics.

Edge cases & clarifications:

  • Postponement: If the game is postponed, the market remains open until the game is completed.
  • Data Discrepancies: All platforms state they will use the first officially published result from MLB.com, meaning any subsequent revisions will not affect resolution.
Timing: Resolution will occur after the official completion of the game, with a maximum of 24 hours for official statistics to be published, as stated by Polymarket.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 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.

Kalshi

The market resolves based on the winner of the Washington vs St. Louis professional baseball game scheduled for Sep 19, 2026, at 7:15 PM EDT. If the game is postponed or delayed, the market remains open and closes after the rescheduled game concludes within two days of the original date. If the game is cancelled or rescheduled to more than two days after Sep 19, the market resolves to a fair price. The markets for both teams operate under these unified conditions, ensuring consistency regardless of when the game actually takes place.

Predict

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.

Opinion

In the upcoming MLB game, scheduled for 2026-09-19 23:15 UTC: If the Washington Nationals win, the market will resolve to "Washington Nationals". If the St.Louis Cardinals win, the market will resolve to "St.Louis Cardinals". 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.