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Kansas City Royals vs. Pittsburgh Pirates
polymarket
kalshi

Who will win Kansas City Royals vs Pittsburgh Pirates?

Volume:
$450,861

O/U 8.5

 - Polymarket

O/U 8.5 - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Sep 20, 2026

Closed: Sep 19, 9:06 PM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

O/U 8.5

View
100%
52%
Yes 100¢No 0¢
0.1¢
N/A
$21,808
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 7.5

View
100%
44%
Yes 100¢No 0¢
0.1¢
N/A
$11,666
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 9.5

View
100%
62%
Yes 100¢No 0¢
0.1¢
N/A
$11,268
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 10.5

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$623
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 4.5

View
100%
53%
Yes 100¢No 0¢
0.1¢
N/A
$91
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 3.5

View
100%
40%
Yes 100¢No 0¢
0.1¢
N/A
$22
N/A
N/A
N/A
Settled
Yes
polymarket

Kansas City Royals O/U 3.5

View
100%
Yes 100¢No 0¢
19¢
N/A
$9
N/A
N/A
N/A
Settled
Yes
polymarket

Pittsburgh Pirates O/U 3.5

View
100%
44%
Yes 100¢No 0¢
0.9¢
N/A
$9
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 6.5

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

Kansas City Royals vs. Pittsburgh Pirates

View
0%
47%
Yes 0¢No 100¢
—
N/A
$280,750
N/A
N/A
N/A
Settled
Yes
kalshi

Over 0.5 runs in the 1st inning

View
0%
42%
Yes 0¢No 100¢
100¢
N/A
$79,885
N/A
N/A
$53,413
Settled
No
polymarket

Spread -2.5

View
0%
24%
Yes 0¢No 100¢
—
N/A
$17,469
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -2.5

View
0%
Yes 0¢No 100¢
—
N/A
$12,348
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

View
0%
34%
Yes 0¢No 100¢
—
N/A
$9,118
N/A
N/A
N/A
Settled
Yes
polymarket

Spread -1.5

View
0%
36%
Yes 0¢No 100¢
—
N/A
$5,180
N/A
N/A
N/A
Settled
Yes
polymarket

NRFI

View
0%
48%
Yes 0¢No 100¢
—
N/A
$306
N/A
N/A
N/A
Settled
No
polymarket

O/U 11.5

View
0%
Yes 0¢No 100¢
—
N/A
$277
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings Spread -1.5

View
0%
32%
Yes 0¢No 100¢
—
N/A
$23
N/A
N/A
N/A
Settled
Yes
polymarket

O/U 12.5

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

1st 5 Innings Spread -1.5

View
0%
28%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 2.5

View
100%
25%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 5.5

View
100%
64%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

1st 5 Innings O/U 6.5

View
100%
74%
Yes 100¢No 0¢
0.1¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
polymarket

Extra Innings

View
0%
12%
Yes 0¢No 100¢
—
N/A
N/A
N/A
N/A
N/A
Settled
No
polymarket

Kansas City Royals O/U 1.5

View
100%
1%
Yes 100¢No 0¢
0.9¢
N/A
N/A
N/A
N/A
N/A
Settled
Yes
Total markets: 25 of 32

Description

This group covers various markets related to the MLB game between the Kansas City Royals and the Pittsburgh Pirates scheduled for September 19th. Markets include the game winner, run totals, spreads, and whether certain events (like scoring in the first inning or going to extra innings) will occur.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Discrepancy in resolution source and timing. Polymarket allows for a consensus if official data is delayed, while Kalshi relies solely on immediate results.Hero tip: Prioritize Polymarket markets for broader coverage and a more robust resolution process. Be aware that Kalshi's markets are very specific and require immediate resolution.

Critical divergence points:

  • Polymarket: Resolves based on official MLB statistics, with a 24-hour grace period for publication. If unavailable, a consensus of credible reporting will be used. Covers a wide range of markets (winner, run totals, spreads, etc.).
  • Kalshi: Resolves solely on whether a run is scored in the first inning, without a mention of a consensus or grace period. This is a very specific market.
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 Kansas City Royals and Pittsburgh Pirates, scheduled for September 19 at 6:40PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals win the game. This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates 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

If either team scores a run in the first inning of the Kansas City vs Pittsburgh professional baseball game originally scheduled for Sep 19, 2026 at 6:40 PM EDT, then the market resolves to Yes.