As part of the Freedom 250 Grand Prix weekend with IndyCar, the revived IROC Series  (International Race of Champions)  will be on track as well, taking on the 1.7-mile street course with the U.S. Capitol Building serving as a backdrop.<br>There are two 20-minute races planned for Saturday, with Race #1 at 3pm EST and Race #2 immediately following 4pm EST.<br>The field of eight drivers is ...<a class='more' href='https://www.motorsport.com/general/news/introducing-iroc-field-washington-dc/10848080/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-ALL&utm_term=News&utm_content=www'>Keep reading</a>