Anyone is always welcome to come along if you are interested.
Here are the events I'm going this year for sure. The MAJOR events are in bold yellow. If none of the others happen, those three will.
KOH (Johnson Valley, CA): First week of February
The MINT 400 (Las Vegas, NV): March 9 - 12
NORRA 1000 (Baja, Mexico): April 21 - 29
Ultra4 Glen Helen Grand Prix (San Bernardino, CA): June 10 - 12
Place holder: King of Wales (Wales, UK): sometimes in August. Schedule not out yet
Ultra4 Vorra 260 (Fallon, NV): Sept 2 - 4
Ultra4 National Championship Race (Reno, NV): Oct 20 - 22