What is "middleground"

Middleground (April 22, 1947 – February 16, 1972)

"Grave Matters Farm Index North America" (horse graves),
Thoroughbred Heritage, 2005, webpage:
TB-Graves.

was an American Thoroughbred racehorse.

Ridden by 16-year-old apprentice jockey Bill Boland, and trained by Max Hirsch, both future U.S. Hall of Fame inductees, Middleground won the 1950 Kentucky Derby, finished second to Hill Prince after a rough trip in the Preakness Stakes, and won the Belmont Stakes.

Middleground died in 1972, and the gravesite is on the King Ranch, in Kingsville, Texas.