TTimes: Classics schedule historically in flux

[Alan07]

The timing of races for the Triple Crown has been far from set in stone—eight of the 11 horses who swept the three classics did it under a different schedule than the one in place today.

The distances have not changed since the three races were first categorized by Turf writers as America’s version of the Triple Crown in 1930, but the present schedule of two weeks between the Kentucky Derby and Preakness and three weeks between the Preakness and Belmont has only been constant since 1969.

http://www.thoroughbredtimes.com/rac...y-changed.aspx