For boxing, but NOT for fighters, just for teaching the basics in a fitness class? Would you need a few fights, or some other skill or talent? Cardio boxing, but with good technique.
If it's just a cardio class, their technical merits only need to be at a very basic level for proper form and technique. I would judge them more by their personality, energy and ability to keep the class engaging and exciting. I don't think anyone cares if they have never fought before, or have a 0-3 record.
