343 feet! WOW!! That is truly amazing. Maybe I need to get my 9 year old to practice throwing for distance. What is the distance record for a 9 year old girl?
I am just kidding about girl's distance record. My daughter is not ready to work on distance. Right now she is still working on her form. I tell her to focus on making a smooth throw and not worry at all about distance. She mostly throws standing still, but has added a 1 step throw to the mix. We never practice distance. I tell her that distance will come when I decide to teach her the x-step. But we need to refine her throwing motion a little more before we can think about improving her distance.
I will show her this post tomorrow. She will be amazed that a nine year old can throw 343 feet. Your son has great talent. Good luck in the future.