Jordan Pacheco and DJ LeMahieu each homered, leading the Colorado Rockies to a 7-5 win over the Chicago Cubs on Thursday for a three-game series sweep.
Pacheco, Wilin Rosario and Chris Nelson had two hits apiece for the Rockies, who had 12 hits in their final home game of 2012.
Rafael Betancourt pitched the ninth for his 31st save.
Anthony Rizzo homered and had three hits and Luis Valbuena also had two hits for the Cubs, who have lost five straight and nine of 10.
The Cubs (59-97) are on pace to surpass 100 losses for the first time since 1966.
The Rockies have the worst home record in franchise history.