Suffolk Downs is a thoroughbred race track in East Boston, Massachusetts, United States. The track opened in 1935 after being built by Joseph A. Tomasello for a cost of $2 million. The last regularly scheduled live racing at Suffolk Downs took place on Saturday, October 4, 2014. A number of famous horses raced at the track, including Seabiscuit, Whirlaway, Funny Cide, and Cigar. The Massachusetts Handicap (or MassCap) was the track's most significant annual event, last held in 2008.