When Does The 2025 Supercross Season Start. The 2025 monster energy ama supercross championship will commence on the second weekend of january, a partial schedule release has confirmed today that anaheim 1 will start later than it traditionally has in. The next ama supercross event will be at raymond james stadium, fl, for tampa (round 5) on saturday 8th of february, 2025.

The championship begins on january 11 in anaheim and ends on may 10 in utah. The calendar is as follows: