The primary update is the reintroduction of semi-final rounds in the 450cc class. According to Prater, when Supercross first started to negotiate television packages producers advised that semis be cut from the program in order to make a more manageable broadcast schedule. As the sport has evolved, however, organizers have found a way to bring semis back, mainly by hosting shortened heat and semi races.
The new race format will now include two heat races, from which the top-four riders will advance directly to the Main Event. Two semi-final races follow and positions 1-5 will advance to the Main followed by a single Last Chance Qualifier where the top four riders will earn a spot in the big show.
This new set up allows 22 riders into the Main Event, up from 20 in previous seasons. Though the 250 class will not get the semi-final upgrade, 22 riders will also compete in the Main in that class as well.
There will be some tweaks to the evening program organization in different cities, especially when the KTM Junior Supercross riders are on hand to compete. Full details are forthcoming.