Help trying to calculate forces from Pro Wrestlers

[BigGreen73]

Let's say you had a professional wrestler who weighs 225lbs and who is standing on the ring post which is 5ft above the mat. He jumps 1ft into the air and then comes down onto his opponent with all of his weight.
How would you calculate the amount of force the wrestler is applying to his opponent when he lands on him?

 

[0xDEADBEEF]

This is not a good calculation. It is easy to calculate the kinetic energy, but for the deceleration forces it is crucial to know the distance needed to come to a stop, and the elasticity function of all body parts involved and the floor.