Endurance racing (motorsport) three races at least twice each. Bold on year indicate at which race the driver achieved his Triple Crown. Strong spectator figures, media interest and television coverage of endurance racing's Triple Crown events (24 Hours of Daytona, 12 Hours of Sebring, and 24 Hours of Le Mans) has led to the establishment of several endurance racing series — thereby giving teams the opportunity of running their cars in Championship events throughout the year. The FIA World Endurance Championship is an international sports car racing series organized by both the Automobile Club de l'Ouest (ACO) and the Fédération Internationale de l'Automobile
Board track racing maintenance to remain usable. Many of the tracks survived for as little as three years before being abandoned. With the onset of the Great Depression in the early 1930s, board track racing disappeared rapidly. However, several of its most notable aspects have continued to influence American motorsports up to the present day, including: A technical emphasis on raw speed produced by the steep banking; ample track width to allow steady overtaking between competitors; and the development of extensive grandstands or stadium-style spectator seating surrounding many of the courses. The first board track for motor racing was the circular Los Angeles