Thanks! correct; 16-35 II @ f/2.8. Some of these would be traditionally shot with something longer, like a 50 or 85 but I find that DOF too thin unless you can stop down for action shots. I don't need every single detail blurred to oblivion as I like some sense of background and context. Plus, having a wide zoom lets you interact with the kids and get them involved with you (as long as they like you, that is! otherwise, maybe stay further back...)
My processing is pretty simple; I think all 3 of these were based on the Direct Positive preset which I tone down a bit and minus some saturation.