Blue Grass Stakes

The Blue Grass Stakes, currently the Toyota Blue Grass Stakes due to sponsorship by the Toyota Motor Corporation, is a horse race for 3-year-old Thoroughbreds held annually in April at Keeneland Racecourse in Lexington, Kentucky. The race is run at  1 ¹⁄₈ miles on the dirt and currently offers a purse of $1,000,000. It will be run as a Grade II event in 2017. The Blue Grass was a Grade I event from 1974 (when grading was first introduced) through 1989 and again from 1999 to 2016.

It was named for the Bluegrass region of Kentucky, characterized by grass having bluish-green culms, which is known as the "heart" of the thoroughbred racing industry.

First run at the Kentucky Association track in Lexington in 1911, the Blue Grass has, from its inception, served as an important prep for the Kentucky Derby. At the Association track, the Blue Grass was staged from 1911 through 1914 and from 1919 through 1926. The race was revived at Keeneland in the spring of 1937. In 1943-1944, the Blue Grass was renewed as a part of the Keeneland-at-Churchill Downs meeting. In 1945, the Blue Grass was run as part of the Churchill Downs meeting. Today it is part of the Keeneland program.

From 2007 to 2014, the race was held on a synthetic "all-weather" surface. Otherwise, it has been run on a dirt surface.