Stanley Dancer ruled the marquee races

EAST RUTHERFORD, N.J.—

Stanley Dancer, a record- setting harness driver who was the undisputed king of the sport’s marquee races, died yesterday at 78.

In a career that spanned 50 years, Dancer was the only horseman — thoroughbred or standardbred — to drive and train three Triple Crown winners. He drove winners in 23 Triple Crown races, a record that held for 20 years.