Pace accuracy

Former Member
Former Member
I just spent some time reading through (some) of the 55 page "GPS Accuracy" thread. Some of what I'm experiencing is touched on there, but I'm much more concerned about the pace problems I'm having with my F5 than laser-perfect distance accuracy. Specifically, I've noticed that my pace is all over the place during a run, even when I know I'm holding a very steady one. For example, here is the pace data from today's run:



I can understand some minor deviations, but when I'm running for several miles at what I know to be a sub-7 pace and look down at my watch and see "8:40", that's pretty darn frustrating.

Here's what the exact same run looked like two weeks ago with my old FR220:



Totally difference experience. What gives? Do I need to change the GPS settings on the F5 to something other than what comes default?