How many calories would I approximately be burning?

I play basketball from 1-5:30 every day. I usually spend the majority of the time hustling in 3 on 3 games or in 5 on 5 games or in 21. Then maybe an hour or 2 I will be running around shooting and taking lay ups. I contionously play with one break every 3 hours. Approximately how many calories could I be burning? I'm 13 and go to Lifetime