SUPERFROG

Always in capital letters, Roman numerals denoting race number: SUPERFROG XXXV

SUPER SEAL

Always in capital letters, Roman numerals denoting race number: SUPER SEAL VI

SEAL Sprint

SEAL is always capital letters, Sprint is capital S only. Roman numerals denoting race number: SEAL Sprint III

Navy SEALs

SEAL stands for SEa Air Land, always use capitals. Plural add small s: Navy SEAL, Navy SEALs