2.0 Runners - Tamron 28 - 75 mm F/2.8 multi-point autofocus

Canon Digital Rebel XTi, ISO 100, F/5.6, AI Servo Autofocus. Initially, I had 88 photos and deleted 11, mostly for being out of focus (12.5% deletion rate). The autofocus on this lense worked well and the deletion rate was good, but focal length seemed inappropriately short for the job. The race is the 2008 Carter Mill 10k.