Squid31 said:No, you did the right thing by bringing it. How will you ever learn from your mistakes if you never offer yourself the opportunity? I don't know how many SX races you have shot, but I can tell you that mine didn't look that great the first few times out there either. If it's something that you love to do, put the time and effort into it and the results will come. My first suggestion is to crank up the ISO. The 20D handles high iso stuff really well.
Chili said:My first few times shooting at a SX were very disheartening so don't get discouraged. As a start until you are comfortable shooting full manual indoors I'd try cranking the ISO up to 800 or 1600, 800 likely would have been plenty at Indy and then shooting AV mode and play with the aperture at 2.8, 3.2, 3.5 and even 4.0 if you have enough light to keep the shutter speed up around 1/400 or above.
Also both of those look like you may have been panning with the rider, that adds to the difficulty as it's very easy to lose your focus spot, are you using center point only for AF?