USA sprinter speed endurance training

USA sprinter speed endurance training. Exercise: 9 x 60 meters 300 m. Coaching Tips: This speed workout should be performed at 90-95% maximum effort. Coming within 5-10% of your genetic human capacity will optimize your ability to reach your maximum potential. Leroy Dixon (born June 20, 1983) is an American sprinter who specializes in the 100 metres. He won the gold medal in 4 x 100 metres relay at the 2007 World Championships, together with Darvis Patton, Wallace Spearmon and Tyson Gay.