DENVER -- Rockies manager Walt Weiss resigned after four seasons, the team announced Monday morning.
Weiss' three-year contract expired after Sunday's regular-season finale against the Milwaukee Brewers, who won 6-4 in 10 innings.
Weiss went 283-365 in his four seasons and never had a winning season, going 74-88, 66-96, 68-94 and a much-improved 75-87 this season.
The Rockies' third-place finish in the National League West this season was their best since 2010, when they went 83-79, their last winning record.
But Weiss wasn't hired by general manager Jeff Bridich, and the manager reportedly was not involved in major decisions during the offseason, including the acquisitions of relieves Jake McGee, Jason Motte and Chad Qualls, or outfielder Gerardo Parra.
Weiss was hired in 2013 when he was coach at Regis Jesuit High School in Aurora.
Weiss played four seasons for the Rockies in the mid-1990s, including their wild card-winning season of 1995, and became a big fan favorite. He served as a special assistant to the general manager from 2002 to 2008.
A search will begin immediately for his replacement. It's not known if any of the coaching staff will be retained.