Quote:
|
The current Matt Winn Turf Course, a seven-eighths-of-a-mile oval situated inside the one-mile dirt track, is the original surface when grass racing debuted 35 years ago at Churchill Downs in 1985. It is comprised of four-inch high Kentucky 31 Fescue (90%) and Bluegrass (10%) grown in a three-inch topsoil layer over a 13-inch course masonry sand base.
|
https://www.bloodhorse.com/horse-rac...ew-turf-course
I'm amazed it lasted this long with only a three inch topsoil layer.
