Offseason
- October 30, 1999: Dante Bichette was traded by the Colorado Rockies with cash to the Cincinnati Reds for Stan Belinda and Jeffrey Hammonds.
- November 16, 1999: Darryl Kile was traded by the Colorado Rockies with Luther Hackman and Dave Veres to the St. Louis Cardinals for Manny Aybar, Brent Butler, Rich Croushore, and José Jiménez.
- November 17, 1999: Curt Leskanic was traded by the Colorado Rockies to the Milwaukee Brewers for Mike Myers.
- November 21, 1999: Julián Tavárez was selected off waivers by the Colorado Rockies from the San Francisco Giants.
- December 9, 1999: Tom Goodwin was signed as a Free Agent by the Colorado Rockies.
- December 13, 1999: Vinny Castilla was traded by the Colorado Rockies to the Tampa Bay Devil Rays for Rolando Arrojo and Aaron Ledesma.
- December 13, 1999: Jamey Wright was traded by the Colorado Rockies with Henry Blanco to the Milwaukee Brewers for Jeff Cirillo and Scott Karl.
- December 16, 1999: Brent Mayne was signed as a Free Agent by the Colorado Rockies.
- January 14, 2000: Bobby Jones was traded by the Colorado Rockies with Lariel González to the New York Mets for Masato Yoshii.
- March 31, 2000: Brian Hunter was signed as a Free Agent by the Colorado Rockies.
Read more about this topic: 2000 Colorado Rockies Season