: For athletes weighing up to 212 lbs (96 kg). This allows shorter, highly muscular athletes to compete without being dwarfed by Open division giants.
: The "main" event where there are no weight limits. Judges prioritize extreme muscle mass combined with "grainy" conditioning and symmetry. Mr. Olympia
: Focuses on a fit, athletic look with less leg mass (competitors wear board shorts). Judging emphasizes the V-taper (wide shoulders, small waist) and stage presence. : For athletes weighing up to 212 lbs (96 kg)