The women's 200 metres event at the 2007 World Championships in Athletics took place on 29–31 August (final) at the Nagai Stadium.
Her rival Veronica Campbell-Brown was her only threat from retaining her title.
Coming into the straight, at the midpoint of the race, Veronica seemed to have a slight advantage over Allyson.
Then Felix produced a display of speed and strength endurance that was simply astonishing, pulling away from the reigning olympic champion to win by a five-metre margin.
Felix wrote herself into history and gave the world a glimpse of what was to come and would go on to be: one of the best track and field athletes in history - the most decorated track and field athlete ever.