They are under starter's orders. And this Sunday's Cooks River Fun Run is set to be more fun than ever.
Competition looks set to be strong, with many of those who have taken part before back on the track to win glory.
Third time competitor, 32-year-old Erika Rimes, for instance.
“I have been training five to six days a week, and my training sessions involve speed running and long distance,” says Ms Rimes.
In 2013, Ms Rimes was placed in the top 40 and in 2014, in the top 30.