100 Meter Walk or Run

How fast can you walk or run 100 meters?
Set up: You can do the 100 meter dash in your yard, on a sidewalk, or any open space. Measure 100 meters (or 328 feet) from start to finish. If you are unable to use a measuring tape, you can measure by taking 120 large steps. Mark the distance.
What to record and submit: Record the time it takes you to walk or run 100 meters from start to finish.