Map My Run vs. Garmin (not gps enabled though)

LoosingMyLast15
LoosingMyLast15 Posts: 1,457 Member
in Fitness and Exercise
which is more accurate? the map from mapmyrun or my garmin forerunner 50 with footpod. the watch is not gps enabled. i did calibrate it but i may be off because when i wear the watch on the treadmill when the watch chimes at one mile the treadmill reads .98

just got back from a run and map my run "mapped" the miles at 3.79 while my watch calculated 4.36. which is right?

Replies

  • mirthfuldragon
    mirthfuldragon Posts: 124 Member
    Treadmills are notoriously unreliable and inaccuarte, and the Garmin manual tells you not to use them to calibrate footpods.
    In comparing my last 5 GPS runs against my footpod (uncalibrated, out of the box), the differences are between 2 and 5%. However, that's for me, and your results may vary depending on your stride, pace, and a variety of other factors.

    In comparing to four different treadmills in my gym, the footpod to treadmill difference is anywhere from 8 to 18%, with no consistency between treadmills.

    Track the differences and see if a trend emerges. Calibrating the foodpod against a known distance (say, a 400m measured track) is also a good start.

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