The circuit used was a modified version of the combined road course used for the Formula OneUnited States Grand Prix from 2000-2007. The circuit was reversed to a counterclockwise orientation, and a new complex of corners was added inside the infield of oval turn one. The new "Snake Pit" section, as it became known, was nicknamed for its location where notorious revelry once took place during the 1970s. The new series of corners precluded the bikes from using any of the banked oval corners. The double-hairpin at the Hulman Straight was replaced with more traditional esses. Furthermore, the motorcycles stayed low in the south short chute between oval turn 1 and 2, using the pavement of the warm-up lane rather than the oval track's short chute. The circuit was re-profiled in 2014, with three new motorcycle-only sections: one in the Snake Pit, a more open entrance to Hulman Straight, and the final esses leading to the pit straight was changed to be more open and flowing.
History
The inaugural Red Bull Indianapolis GP took place 99 years after the previous motorcycle race at the track, in 1909. The first motorsports event at the track consisted of 7 motorcycle races, sanctioned by the Federation of American Motorcyclists, on August 14, 1909. This was originally planned as a two-day, 15-race program, but ended before the first day was completed, due to concerns over suitability of the track surface for motorcycle use. The Rider with most victories at this grand prix is Marc Márquez with three victories in MotoGP class and two victories in the Moto2, followed by Nicolas Terol with three victories in the 125cc two-stroke class, followed by Dani Pedrosa and Álex Rins with two victories each and all the others have only one victory. This grand prix has been won only by Spanish, Italian, Australian, Finnish and Belgian riders.
Motorcycles on Meridian rally
The race became part of a major motorcycle event organized by Indianapolis Motor Speedway, the Motorcycles on Meridian motorcycle rally, held on Meridian Street near Monument Circle in downtown Indianapolis, attracting approximately 10,000 cyclists each night. Various dirt tracks held flat-track motorcycle races during the weekend which became analogous to midget car racing's "Night Before the 500" held during the Indianapolis 500, often drawing star MotoGP riders in attendance. The event continues to be held, but with the 2020 Indianapolis 500 being moved to the August event of the Motorcycles on Meridian date, both the Motorcycles on Meridian and the MotoAmerica round will be changed.
Official names and sponsors
2008-2015: Red Bull Indianapolis GP
Winners of the Indianapolis Grand Prix
Multiple winners (riders)
Multiple winners (manufacturers)
By year
NOTE: Moto3 was known as the 125cc class until 2011, when the FIM changed the formula from 125cc two-stroke engines to 250cc four-stroke engines. Moto2 was known as the 250cc class until 2009, when the FIM changed the formula from 250cc two-stroke engines to a one-make 600cc four-stroke Honda engine class, with the FIM planning in 2016 to open the 600cc engines to multiple manufacturers. In 2019 moto 2 engines will be 765cc Triumph engines