September 27 2013 Dover AAA 400 NASCAR Practice #1 Speeds and 10 Lap Averages Ryan Rantz NASCAR News, Practice Speeds 10 Lap Averages, Dover, Dover AAA 400, Dover AAA 400 Practice #1 Speeds, Dover Practice #1 Speeds, Dover Speeds, Fastest In practice, NASCAR Practice Speeds Dover AAA 400 Practice #1 Speeds and 10 Lap Averages (PDF) Wondering More