first off, subjective sports are useless, and judging is as standardized as possible hence objectivity. if it wasnt it would come down to preference.
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Bodybuilding judging is partially objective, but there is lots of subjectivity too. As an example, both Jay Cutler and Dexter Jackson have won the ASC, and they have radically different physiques. So how is judging "standardized"?
There are things that can be evaluated mathematically, such as muscle mass, structure, symmetry, muscular separations, etc. But then, there are other things that are entirely subjective and cannot be evaluated in terms of degrees. Muscle hardness and shape are two examples.
For instance, adding to the examples of Jay Cutler and Dexter Jackson, both Nasser and Wheeler have won pro shows, and their shapes are completley different. Subjectivity. Another example is vascularity: some judges score it up while others score it down.
My point is that bodybuilding judging is not a completely mathematical sport like sprinting or swimming, in which the guy who crosses the line in one milisecond faster than the oither wins, or like powerlifting where the guy who benches 1 lbs more than the other wins the competition. It is both objective and subjective.
Now, judges do evaluate physiques objectively to some degree when they look at bodybuilders to detemine who is bigger, has more separations, better proportions between muscles etc. But this still leaves a lot of room for subjecvity. For instance, Shawn Ray defeated many guys who objectively defeated him in the muscle mass category because the judges subjectively determine that his beautiful lines were more valuable than the objective superiority of his competitors over him in terms of mass.

In conclusion, there are subjective aspects to bodybuilding and to conditioning. Muscle hardness is one of these. Now, I actually believe that hardness is objective, except that we don't know how to measure it, so it is up to opinion. You can look at Ronnie and consider him harder than Dorian in the same way that I consider Dorian harder than Ronnie, but most people regard Dorian as being harder, including arguably the most seasoned bodybuilding journalist alive, Peter McGough.
"No bodybuilder has ever been as hard and dry as the man who won six Sandows."SUCKMYMUSCLE