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Gps tracking running app discrepencies.

funkpod

Well-Known Member
Hey, I'm training for a marathon so I am using SportyPal Pro and Cardio Trainer a lot
Usually they ate pretty accurate, but on a longer run, the discrepencies are more pronounced. For instance, I went for a 14 mile run today and Sporty pal told me that I went 14 miles while cardio trainer said I went 15... That's a big difference.

Looking at walkjogrun.net I probably did more like 15, but why was sporty pal so off?

Or was cardio trainer off? I've read issues about cardio's reliability but not about sport pal's. ..
 
I've noticed that Google Maps is spot on, but when I use apps like The Weather Channel it can be anywhere from 200-300 yards off up to 2-3 miles off! Not sure what's going on...
 
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