Using Exec To Define And Get The Value From Variables Raises Nameerror

Right now I'm working on a project that will ask for a runner's name, 1 mile, 2 mile, and 5 miles times and generate data based off that. The requirement is to have enough entries

Solution 1:

In case anyone cares it was because I was using an older variable i and didn't either set it to 0 or use another variable.