I haven't used the DX2, but will assume, like the DX3, that ISO 6400 is just fine for your purpose, contrary to what others are posting.
While you didn't ask for a critique, I feel like it is the only way to help you out.
- You have a 200mm lens and are shooting it at only 70mm?
- Crop tighter, the bleachers aren't the subject, zooming in would be better because at 2.8 you'll obliterate the background
- Shoot RAW if you are not or at least RAW + JPG
- Shooting the picture is only 1/4 of the job, post processing is a necessity, just like developing was back in the day
- There may be motion blur in the photo you posted, try 1/1600 shutter
- Based on that histogram, expose more to the right and bring the exposure down in post
Bottom line is that I bet no-body here shoots prize winning shots straight out of the camera. If you don't want to post process, you're going to spend a lot of money searching for something you won't find.