All I did in post for the above photos after I posted them here, was apply NR, sharpen, brighten a tad, and resize if need be. Above ISO 10000 the 1DX will slightly blow out the highlights, but keep in mind, nothing so bad that you can't just adjust the highlight and whites sliders; the detail comes back instantly. Overall I was very happy with the noise performance and metering. Soccer is difficult when one team has white jerseys and the other team has black. All I could really do was set auto ISO, f/2.8, and as fast of a shutter as I could to keep proper exposure, sometimes even with the 1DX dipping to 1/500. I've found football actually to be a lot more of a controlled shooting environment. I'll report back on that this Thursday, the 30th, as there is one at 7pm. I believe this field has 6 lights, and not 4 like the soccer field has (much darker).
Btw, I chose not to crop the goalie kicker so much for my final photo, as there just wasn't enough resolution for such a steep crop. After re-cropping, I applied 65 NR, brightened a tad, saturated a tad, then sharpened, and it was done. Took all of 90 seconds.