When you assume that your stride is the same length as the standard calibration on the Nike+.
After running on two different treadmills this week, it looks like my stride is about 20% shorter than the pre-calibrated length on the Nike+. So, a "real" run of 2.5 miles has shown up on my Nike+ log as 3.16 or 3.2 (depending on the treadmill).
So, all my runs have been significantly shorter, and I am significantly slower than I thought I was. My 11:30 pace is really a 15-minute mile. The 6 mile run was really a 4.74 mile run.
1 comment:
Awww.... Don't feel bad.....You still RAN. And at least your running time is accurate !
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