The game against Colorado was KC's 40th in all competitions this year, tying a team record set by in 2000 and 2002.
Matt Besler's minutes total for the season is now 3,367, good for 11th most in all competitions in team history.
Davy Arnaud made his 14th playoff appearance for KC, breaking his tie with Peter Vermes for 9th place on that list.
The win was the 25th win over the Rapids in all competitions, that continues to set a team record against a single opponent.
Jimmy Nielsen recorded his second shutout in the playoffs, that ties him with Kevin Hartman and Bo Oshoniyi for second on that list.
It was also Nielsen's 2nd win in the playoffs, tying him for second with Oshoniyi and Garth Lagerwey.