More than 30 students from Putnam City Schools spent time in labs OMRF this week.
Cost for the fun run is $15 per person, and the 5K is $30.
The 2017 class includes 50 teens from across the state.
OMRF opened its doors for 17 elementary-school scientists on Tuesday.
More than 1,000 runners and walkers turned out at Wheeler Park on Nov. 5.
For the past 41 years, the PC Schools have partnered with OMRF to fight cancer.