Third place Williams - Mills became a time qualifier faster than the previous two heats .
She also slowed on the homestretch and looked to struggle to hold off DeeDee Trotter and Novlene Williams - Mills .
Third place Novlene Williams - Mills     became a time qualifier faster than the previous two heats .
She also slowed on the homestretch and looked to struggle to hold off DeeDee Trotter and Novlene Williams - Mills .