Great Britain's Jonnie Peacock and South Africa's Oscar Pistorius have qualified for the T44 100m final.
In heat one Peacock raced to equal the Paralympic record of 11.08s.
Pistorius ran a season's best to comfortably take his heat with a time of 11.18s.
The third heat was run by Arnu Fourie, Pistorius's South African teammate, who timed in at 11.29s.