(picture above is not Kuortane, just a nice track pic) This video shows Zelezny popping throws over 90 meters with ease in Kuortane, Finland. Home of the javelin. One thing to note in these throws is his position in regard to the front. Many throwers can get too sideways and lose the ability to finish the throw to the front. This is a run up issue predominately but areas of the throwing motion can be affected as well.
