Upload & Sell: Off
You've got some nice sharp shots here. For ISO 8000-10000, the light looks really clean and even (either that or LR 4 is being very very good to you....) Love any gym that is not sodium vapor lights.
Here's my take on what you have. I want to see more faces -- specifically look at number 1, 5, 8 & 10. A lot of half faces or partials, but not many where you can easily recognize who the player is. It's a fine line between action when you are trying to capture peak action -- but if you can wait a split second and anticipate, I think you'll have more luck. I tend to talk to the players (in my head only) when I shoot -- almost asking them to turn their face to me -- and then start shooting just as they turn. If I wait until I see their eyes, it is often too late.
Color looks really good. 1/800th is plenty fast enough to freeze action. Have you tried dropping back to 1/640th (or even 1/500th) for the girls. Might allow you to drop the ISO down below 6400 and give you even cleaner files from the start. Should be fast enough SS to still freeze 'em nicely.
The only other thing I would suggest is take the 70-200 with you and put it on for a quarter or 2 -- and the 300. That's my plan for the next game. Shoot 1st quarter with 24-70, 2nd quarter with 70-200, 3rd with 300 and then whichever one you liked best for the final quarter. Force yourself to get something good with every lense.
As for my favorites, 9, 2 & 6 (in that order.) Love how tight you are on 9 -- and the square crop adds a nice balance. Really like the color, tone, WB and sharpness of number 4, but I am not crazy about the crop. I know you were trying to leave net for sake of reference, but I don't think anyone expects the action above the rim in the girls' game. Crop it tighter and I think it might be my favorite of the whole bunch.
Keep 'em coming. Some real winners here. Nice set.