One thing I will say, is I can tell that these are taken in a facility with good lighting. Yes you still need a great camera and lens to get those photos, but photography changes so much if your doing a 1A school that has hardly enough lighting to see the ball.
Just wanted to comment that these nighttime captures look well exposed. I know it can be challenging as well. I've been shooting soccer professionally for over 20 years. Just wanted to comment as I have not been active in a while on Miranda.
the fields my daughter's soccer club play on have sidelines filled with lacrosse goals, practice equipment, porto-potties and a ton of other random stuff. Makes it hard to find clear backgrounds and drives me crazy. The tournaments are even worse!