Oh, how I loathe this gym. I've been shooting in it for six years and every time I do it seems like the lighting changes. They redid the floors over the summer so they give off a nice yellowish glow. Add to that dark orange walls, a black ceiling and a mixture of tungsten and flourescent lighting and not being able to use strobes for volleyball and it makes a photographers evening miserable. I shot at ISO 1600, manual white balance of 3400 K and experimented with noise cleanup with Neat Image.