The Ohsweken Speedway is a 3/8 mile dirt track in the village of Ohsweken, Ontario, Canada. Ohsweken’s weekly Friday night racing program runs from May to September each year, featuring 360 Sprint Cars, Crate Sprint Cars, Thunder Stocks, and Mini Stocks, while the season finishes each year with the annual Canadian Sprint Car Nationals. Ohsweken Speedway also hosts weekly Micro Sprint racing on Thursday nights, and hosted the World of Outlaws Sprint Car Series from 2007 until 2017.

The NASCAR Canada Series, commonly abbreviated as NCS, is a national NASCAR racing series in Canada, and is a continuation of the old CASCAR Super Series which was founded in 1981. It is the top NASCAR touring series in Canada.