California, USA 21st annual DNC early entries open! septembre 3, 2019 by Chris Leave a Comment 2020 The Dirt Nitro Challenge discount entries are now available for a short time! The Dirt are excited to offer a summer discount for the 2020 DNC! The 21st annual event will be held at the Southern California Fairgrounds for the 2nd year in a row. The Dirt have been working with the fairgrounds to make the 2020 DNC one of the best ever! They will be utilizing the rodeo arena (the one that was … [Read more...] about 21st annual DNC early entries open!