Vasser Sullivan is an American organization involved in motorsports. It was founded in 2010 by James “Sulli” Sullivan as SH Racing to compete in motocross. In 2011, the team partnered with KV Racing Technology to form KVSH Racing. Following a two-year hiatus after the demise of KV Racing Technology, Sullivan and former KV co-owner Jimmy Vasser announced that they had formed Vasser Sullivan. The organization has competed in racing series including: the Red Bull Global Rallycross Series under the SH Rallycross/DRR banner, the IndyCar Series where it has competed as co-entrants with KV as well as with Dale Coyne Racing, and the IMSA SportsCar Championship where it formerly partnered with Aim Autosport as Aim Vasser Sullivan before later competing independently.

The IMSA SportsCar Championship, currently known as the IMSA WeatherTech SportsCar Championship under sponsorship, is a sports car racing series based in the United States and Canada and organized by the International Motor Sports Association (IMSA). It is a result of a merger between two existing North American sports car racing series, the American Le Mans Series and Rolex Sports Car Series. At its inception, the name was United SportsCar Championship, which subsequently changed to IMSA SportsCar Championship in 2016. Rolex SA's Tudor brand was the championship's title sponsor in 2014 and 2015, and since 2016 WeatherTech has served as title sponsor.