"The comparisons of the compulsory poses cannot be overemphasized as these comparisons will help the judge to decide which competitor has the superior physique from the standpoint of muscular bulk, balanced development, muscular density and definition.
3. Side Chest (see Figure 3)
The competitor may choose either side for this pose, in
order to display the “better” arm. He will stand with his
left or right side towards the judges and will bend the arm
nearest the judges to a right-angle position, with the fist
clenched and, with the other hand, will grasp the wrist.
The leg nearest the judges will be bent at the knee and
will rest on the toes. The competitor will then expand the
chest and by upward pressure of the front bent arm and
contract the biceps as much as possible. He will also
contract the thigh muscles, in particular, the biceps
femoris group, and by downward pressure on his toes,
will display the contracted calf muscles.
The judge will pay particular attention to the pectoral
muscles and the arch of the rib cage, the biceps, the leg
biceps and the calves, and will conclude with the head-to-foot
examination. In this pose the judge will be able to
survey the thigh and calf muscles in profile, which will
help in grading their comparative development more
accurately."
According to the IFBB criteria, it's obvious that Ronnie beats Dorian in the side chest. Ronnie has superior muscle bulk and definition, and ties in balance. Now factor in better muscle shape and vascularity. The pose specifically calls for the judges to pay particular attention to the pecs, biceps, hamstrings and calves, of which Ronnie wins 3 out of 4. This leaves Dorian with just calves. In the head-to-foot survey, Ronnie's delts are as large as Dorian's but more separated. He also had larger quads and more detail in his side leg. In conclusion, Ronnie clearly wins the side chest pose.