In 1988 , in her first full season at the event , she would reach the Olympic final in Seoul .
Gunnell first attempted the 400 m hurdles event in 1987 , with a 59.9 clocking .
In 1988 , in Gunnell 's first full season at the event , Gunnell would reach the Olympic final in Seoul .
Gunnell first attempted the 400 m hurdles event in 1987 , with a 59.9 clocking .