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Kansas City Royals @ Pittsburgh Pirates

This page is the September 18, 2026 meeting. See the current Kansas City Royals @ Pittsburgh Pirates page →

KC Kansas City Royals 5
PIT Pittsburgh Pirates 8

Final September 18, 2026 · 6:41 PM ET

Pirates -1.5: covered · Total 8.5: over

How the Odds Moved, Open to Close

The best moneyline at each scan, from the first price we saw on Sep 17 to the start.

-175+115+170Sep 17Sep 18
Kansas City Royals Pittsburgh Pirates

Exchanges included. Pinnacle and the offshore books are not, and Kalshi is not charted.

About This Chart

Earliest at Pinnacle: the Pirates -177 on Sep 17, closed at -182.

Where Pinnacle's Line Opened, and Where It Closed

This game was listed before Pinnacle priced it, so the number below is Pinnacle's earliest price on it rather than the first number anyone posted. It was actually posted, it is stamped with its own time, and the market may already have moved before it existed.

  • Kansas City Royals: PINN open +158, closed +166 (longer)
  • Pittsburgh Pirates: PINN open -177, closed -182 (shorter)

Polymarket US paid the most on the Pirates at -178. $100 there made $6.18 more than at Bally Bet (-200).

Closing Odds at Every Book

Closing prices as of September 18, 6:38 PM ET. These do not move again.

Closing Moneyline

BookKansas City RoyalsPittsburgh Pirates
Polymarket US+174-178
Novig+170-178
ProphetX+165-180
Bally Bet+163-200
BetParx+163-200

Closing Spread best flagged at +1.5 / -1.5

BookKansas City RoyalsPittsburgh Pirates
Polymarket US+1.5 -125-1.5 +122
Novig+1.5 -127-1.5 +122
ProphetX+1.5 -129-1.5 +120
Caesars+1.5 -137-1.5 +118
Hard Rock Bet+1.5 -135-1.5 +115

Closing Total best flagged at 8.5

BookOverUnder
Polymarket US8.5 +1048.5 -106
Novig8.5 +1048.5 -108
ProphetX8.5 +1038.5 -112
Caesars8.5 -1138.5 -105
DraftKings8.5 -1058.5 -114

About These Closing Odds

Every price on this page is a book's own last quote strictly before Kansas City Royals and Pittsburgh Pirates started, taken from our scan archive. A book that stopped pricing the game early still shows the number it closed at, and a book that never priced it is not listed. 19 books priced this game. The tables list the books you can bet; an offshore book shows when you turn it on in your books, and Pinnacle appears only as the reference on the chart. Prediction market prices include trading fees wherever a fee applies, so they are directly comparable to sportsbook lines. See how we calculate this.

This page is permanent. The closing prices above do not change again, and the page keeps them at this address after the game, the season and the rematch, so it stays a citable record of what this line actually closed at.

Cite this page: https://theoddsgap.com/odds/mlb/kansas-city-royals-vs-pittsburgh-pirates, final September 18, 2026.

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