Watch his vault from the back. He has an unusual style of separating his legs as he swings and then goes into his tuck. Can anyone explain the biomechanical advantage to this technique?
It allows him to get into a tighter tuck which means a faster rotation. Gymnasts do this all the time When doing triple backs in the floor exercise or off the highbar.Also his right leg can go on the outside of his right arm which gets his center of gravity under his hands. When he swings that leg up to meet his left leg as he shoots , then additional loading of the pole takes place.
Campare his vault with Brad Walkers and you will see that they are using the same technique.
Doug Balcomb
PV Coach, Colfax HS