This route is half of the "Fitstart" circuit (out-and-back is the full circuit). The mile markers on the trail are inaccurate.
This route is half of the "Fitstart" circuit through Rattan Creek park (so out-and-back is the full circuit). Along the path you'll see markers that appear to be tenths of a mile, adding up to one mile for the full circuit. They actually add up to 1.15 miles.

Rattan Creek Park half-circuit