IndyCar is holding its first race in D.C. this weekend. Here's what to know.

Washington D.C. is set to host its first major auto race in over two decades this weekend with the IndyCar Freedom 250 Grand Prix. The event, commemorating the nation's 250th birthday, is expected to attract approximately 140,000 spectators each day. The race will see 25 IndyCar drivers navigate a 1.7-mile temporary circuit around the National Mall, a significant undertaking that has transformed the area with grandstands and barriers, leading to traffic and pedestrian disruptions.

IndyCar, a premier open-wheel racing series often considered second only to Formula 1 in global standing, is known for its high speeds, with cars capable of reaching 230 mph. The Indianapolis 500 is its most famous event. This weekend's race marks IndyCar's debut in the nation's capital. The race is scheduled to begin at 1 p.m. ET on Sunday, following a structured weekend that includes practice sessions and qualifying on Saturday.

The track layout features six left-hand turns and one right-hand turn. The starting grid is positioned west of the U.S. Capitol on Third Street Northwest, with the course winding down Pennsylvania Avenue and Ninth Street Northwest, passing landmarks like the National Archives before heading down Constitution Avenue and Seventh Street Northwest across the National Mall. President Trump is anticipated to wave the green flag, signaling the start of the race, which has been in development for over a year.