When it originally opened in 1969 it held fewer than 7,000 people. It was expanded due to the efforts of then Maui Mayor Linda Lingle (now Governor of the State of Hawaii), to host the Hula Bowl (now played at Aloha Stadium in Honolulu).
The War Memorial Stadium is also home to the Maui Interscholastic League (MIL) High School Football association. The stadium is also equipped with a state of the art 440 yard track, long jump, triple jump, high jump, and pole vaulting pits. In 1972, the stadium was the site of the first State High School Track and Field Championships held outside of Honolulu, chosen in part because of the new state of the art rubberized asphalt surface.
Adjacent to the War Memorial Stadium is a 1,500 plus seat Baseball Stadium, that is home to the Maui Interscholastic League Baseball and American Legion Games. Is was opened in 1972. In 1974, it played host to the Hawaii State Championship Game, featuring University of Hawaii pitching legend, then Aiea High School's sophomore sensation Derek Tatsuno against Baldwin High School's (Island of Maui) Ace pitcher Tom Valdez. The pitching contest ended in a 1-0 decision in favor of Aiea High School. Valdez was drafted later that year by the St. Louis Cardinals. Tatsuno went on to star at the University of Hawaii and professional baseball in Japan.
The War Memorial Stadium Complex houses training facilities for H.P. Baldwin High School, Soccer, and Softball Fields, Soichi Sakamoto Pool, and a 2,000 plus seat gymnasium. The complex was dedicated in 1965 to honor the Veterans of Maui County (comprising of the Islands of Maui, Moloka'i and Lana'i) who gave their lives in service of their country.