The Colorado Rockies set a franchise record for runs scored in an inning when they plated 13 during the fifth frame of Thursday’s 17-7 win over the San Francisco Giants, per ESPN Stats & Info.

The offensive barrage began when Rockies shortstop Trevor Story launched a two-strike, hanging slider from Giants starting pitcher Matt Cain over the left field wall.

Sprinkle in a couple of bloops and a few liners to the gap, and suddenly Colorado owned a 17-3 lead. In the top of the fifth inning alone, the Rockies tallied 10 hits and knocked both Cain and Giants relief pitcher Vin Mazzaro out of the game.

Not only did the Rockies set a franchise record with their offensive eruption, but they also became the first team since the 1890 Chicago Colts to score 13 runs in the fifth inning of a National League game, per Sportsnet Stats.

Of course, while new records such as the one set on Thursday are nice, the most significant franchise first would be an NL West division title.

Thursday’s win improved the Rockies to 14-14, pushing them into a three-way tie for first place with the Giants (15-15) and Los Angeles Dodgers (14-14)—two of the preseason favorites to win the NL.

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