Kansas City Royals vs. Pittsburgh Pirates

76%
Pittsburgh Pirates 6%
Volume$313.3K
WindowEnds Sep 20, 2026 ET

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OutcomePolymarketKalshi
Winner
$146.6K Vol.
Kansas City Royals
5%
25%
22%
26%
Pittsburgh Pirates
6%
75%
22%
74%
Pittsburgh Pirates spread-3.5
$29.9K Vol.
Pittsburgh Pirates
9%
Kansas City Royals
91%
Kansas City Royals-1.5
$13.9K Vol.
Kansas City Royals
14%
14%
Pittsburgh Pirates
86%
86%
Total6.5
$19.6K Vol.
Over
35%
Under
65%

Rules

In the upcoming MLB game between the Kansas City Royals and Pittsburgh Pirates, scheduled for September 20 at 1:35PM 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.

Prices and volume from Polymarket and Kalshi, updated live. You trade them here with play money; Papermarkets is not affiliated with either venue.