Offseason
- November 11, 1999: Alberto Castillo, Matt DeWitt, and Lance Painter were traded by the Cardinals to the Toronto Blue Jays for Paul Spoljaric and Pat Hentgen.
- November 16, 1999: Manny Aybar, Brent Butler, Rich Croushore, and José Jiménez were traded by the Cardinals to the Colorado Rockies for Darryl Kile, Luther Hackman and Dave Veres.
- November 24, 1999: Heathcliff Slocumb was signed as a free agent by the Cardinals.
- December 15, 1999: Luis Ordaz was traded by the Cardinals to the Arizona Diamondbacks for Dante Powell.
- January 5, 2000: Ernie Young was signed as a Free Agent with the St. Louis Cardinals.
- March 18, 2000: Joe McEwing was traded by the Cardinals to the New York Mets for Jesse Orosco.
- March 23, 2000: Kent Bottenfield was traded by the St. Louis Cardinals with Adam Kennedy to the Anaheim Angels for Jim Edmonds.
Read more about this topic: 2000 St. Louis Cardinals Season