Hi nathan! You certainly chose the most challenging setup to "test" your and your camera's skill: night! Stadium lights are only so bright, they're not comparable to daylight!
So next time try daylight, fully automatic to become acquainted with your gear.
If you go night-shooting, consider the following advice:
- crank up ISO to 1600 (if everything works out fine, but you see too much noise, reduce to 800)
- avoid your onboard flash popping up ( the camera thinks: "Ooh that's dark, I should light-up this scene with my flash"). If the flash is up (and running) your shutter speed is fixed to 1/60 and the cam believes it can really throw some light at the players at the field. Oh boy is this camera dumb

To avoid this go to "A" = aperture priority and open the aperture to the max (F5.6)
This together with the high ISO makes sure that you get (1) a well lit photo plus (2) the shortest possible shutter speed.
If this doesn't help either make the club install brighter stadium lights or buy a Nikon 200mm/F2.0 (no, I will not tell you the price of this gear

)
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Thomas (beware: Nikon-fanboy and moderator!)
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