Del Mar Fairgrounds is a 370-acre (1.5 km2) property that is the site of the annual San Diego County Fair (called the Del Mar Fair from 1984 to 2001). Its Del Mar Racetrack was built by the Thoroughbred Club in 1937 by founding members Bing Crosby, Pat O’Brien with Paramount Studios as corporate sponsor.
The length of the race track is exactly one mile (1.6 km), and races are run counter-clockwise.
Del Mar Arena
Del Mar Arena is a 7,000-seat arena in the fairgrounds complex, used for sporting events, concerts and other special events. It was built in 1991.
Del Mar Fairgrounds features six exhibit halls totalling 219,380 square feet (20,381 m2) of space. The largest is Pat O’Brien Hall with 68,680 square feet (6,381 m2) of space and seating up to 6,800; its ceiling height is 35 feet (11 m). Others include the 55,200-square-foot (5,130 m2) Exhibit Hall seating up to 5,500; Bing Crosby Hall with 31,900 square feet (2,960 m2) of space and capacity of up to 3,500; The 45-foot (14 m) Wyland Center with 30,800 square feet (2,860 m2) of space and capacity of up to 3,000; the 19,800-square-foot (1,840 m2) Activity Center holding up to 2,200; and Mission Tower with 13,000 square feet (1,200 m2) of space and capacity of up to 1,200.