He wants his athletes to have fresh legs going into their races.
He dusted the field of 20 runners in the men's 5000m.
The American runners have excelled at Hayward Field in the past.
The Olympic silver medalist prevailed with a huge kick.
Olympians are looking to improve their closing speed.
He wants a gold at the World Championships.
Watch as Galen Rupp accepts his award at Endurance Live.
His 3000m race in Stockholm was the best American performance at that distance of all time.
He bettered Bernard Lagat's 3,000m mark.