TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 20, 4:40 PM EST
Kalshi
This event determines if the Kansas City Royals versus Pittsburgh Pirates game set for September 20, 2026, will require additional innings to produce a winner. Play continues beyond the ninth inning only if both teams are locked in a tie after regulation, with extra frames proceeding until one side gains a final-inning advantage. The result depends on the teams' relative performance throughout the match.
If at least 1 extra inning is played in the Kansas City vs Pittsburgh professional baseball game originally scheduled for Sep 20, 2026 at 1:35 PM EDT, then the market resolves to Yes.