Kennedy ran the first heat of the men's 100m in 9.96 seconds on Friday.
Australian Associated Press on MSN
Kennedy sizzles with sub-10 run but Hull takes a tumble
Lachlan Kennedy has become the first Australian to break the 10-second mark over 100m on home soil, while Jessica Hull endured a nightmare start in Sydney.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results