Lora L. Corum y A Floyd Davis se le atribuye haber sido co-ganador de las 500 Millas de Indianápolis en 1924 y 1941, respectivamente. Sin embargo, como los ganadores de ambas carreras solo lideraron después de que sus pilotos secundarios condujeran (y hasta el final), a Corum y a Davis no se les atribuye haber liderado ninguna de esas vueltas, ni tampoco lo hicieron durante el resto de sus carreras.Cincuenta y siete de las ciento siete carreras de 500 millas de Indianápolis fueron ganadas por el piloto que lideró la mayor cantidad de vueltas, 53,27%.
Veinte equipos distintos en años iguales, conducidos por dieciséis pilotos, no han conseguido ganar a pesar de liderar más de la mitad de las vueltas completadas en una carrera determinada. [1]
In 1964, Autolite created the "Pacemakers Club," which recognized drivers who had led at least one lap during the Indianapolis 500. It quickly rose in stature and popularity, and became a highly sought-after honor associated with the Indianapolis 500. After changes in sponsorship, the organization was renamed the "Leaders Circle Club".
The qualifications were simple: any driver who had led at least one lap during the history of the race, whether living or already deceased, were recognized as members. At its inception, 102 drivers were listed as members. A total of 56 were deceased at the time, and 46 were living.
Honorees receive a jacket, and are honored at a banquet in their honor. The number of new members inducted at the banquet varies annually, as it is solely based on the previous year's first-time lap leaders. Some years can have as few as one or zero new members inducted, while other years have had as many as 4-5. The "club" is still active as of 2012.