[5] Both the Dodgers and Rockies finished the 2018 regular season with 91–71 (.562) win–loss records, necessitating a tie-breaking game to determine the division champion.

[1] As the Chicago Cubs and Milwaukee Brewers tied for first place in the National League Central Division, they also played in a tie-breaker game, marking the first time in Major League Baseball that two tie-breakers were needed in a single year.

[6] The Dodgers hosted the tie-breaker game based on their head-to-head record against the Rockies in the regular season.

The Rockies got solo homers in the ninth inning from Nolan Arenado and Trevor Story off of Kenley Jansen.

The Rockies defeated the Chicago Cubs in the 2018 National League Wild Card Game the next day, but were then swept by the Brewers in the NLDS.