Schedule for Buttonwillow:
Saturday: F-50, Clubman Heavy, Clubman Medium
AFemme, Clubman Light, 300 Production
F-40 Heavy, F-40 Middle
F-40 Light, Vintage,
Sunday: 250 Superbike
750 Production
Formula II, 650 Twins
Open Production, Open Twins
600 Production
Open Superbike
Formula I
Formula IV
Formula Pacific
650 Production, 500 Twins, Formula III
600 Superbike
Open GP, Super Dino
450 Superbike, 250 Production
750 Superbike
Saturday: F-50, Clubman Heavy, Clubman Medium
AFemme, Clubman Light, 300 Production
F-40 Heavy, F-40 Middle
F-40 Light, Vintage,
Sunday: 250 Superbike
750 Production
Formula II, 650 Twins
Open Production, Open Twins
600 Production
Open Superbike
Formula I
Formula IV
Formula Pacific
650 Production, 500 Twins, Formula III
600 Superbike
Open GP, Super Dino
450 Superbike, 250 Production
750 Superbike
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