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08-31-2007, 07:26 PM | #1 |
Senior Member
Join Date: Sep 2005
Location: Northern California
Posts: 2,919
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I didn't calibrate mine and it is pretty dang accurate. I've got a couple of places where I know exactly how far it is and it has always been within about .01 miles of the mark. It pretty amazing really. I assume they use an average steplength most runners use, so as long as you're not freakishly long-legged or a midget you probably fall pretty close to the normal range.
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