How to Run a 4.2-second 40 Yard Dash! - Official Website of Joe DeFranco & DeFranco's Gym In total, this book reveals 11 Olympic Sprinter Running Mechanics to get you from where your 40 speed currently is to where you want it to be. With each technique, you will discover how Olympic sprinters execute the movement Freakishly FAST 40 Yard Dash: Attain Football Speed Dominance