Due to the fear of liability, the javelin throw is not an event in NFHS high school competition in 36 states, though USATF youth competitions for the same aged athletes do hold javelin competitions.[14] At various points in time, high schools have attempted to create substitute events, including the softball throw, football throw[15] and the grenade throw,[16] throwing different objects under rules similar to javelin throw rules. In those states that do allow high school javelin competition, a few specify that the tip must be of rubber. Further, in age group track meets in the U.S., and in particular with elementary-school children in the Northeast, the Turbojav—a smaller plastic implement with a rubber tip but with similar flying characteristics as a real javelin—is a popular alternative.
https://en.wikipedia.org/wiki/Javelin_throw
It is sport throwing a spear. And in this case it was not thrown.
Couldn't get the technique down, and my arm would ache for days afterward.
I didn't pursue it.