Showing posts with label calculation. Show all posts
Showing posts with label calculation. Show all posts

Wednesday, August 28, 2013

One of these routes is not like the other

Post run relaxing
Today's run (street): 3.36 or 3.41 miles

It was another mid-high intensity run this morning. My heart rate (the only performance metric I'll view while on a run) was close to target, and I knew I'd be happy with my finish time. A quick look at the Garmin confirmed that I'd managed another good run. I cooled down by the pool when I finished and tried mapping my route using the Gmaps web app on my phone

I was pleased to see that the Android OS was finally supporting Gmap's functionality. That allowed me to record my distance and calculate my true pace. I liked what I saw: 9:05. Although I worked for it, getting there didn't feel as hard as I thought it would be. Looking a gift horse in the mouth, I mapped the run on my laptop after I'd finish showering and discovered a surprising disparity in distance.

Distance: Android version
Web version, same route
For some reason, the route on my laptop registered 5/100ths of a mile shorter than the exact same map on my phone. Weird and disappointing, because that small disparity meant my average pace was actually 9:12. Not bad, but not what I wanted to see. I remapped the route to see if I'd somehow missed a street, but the distance came up the same each time.

So what if the phone mapping is actually the correct measurement? That would be nice. But I use the web version as the standard, so I'll have to go with that. In the end, the difference is measurement is minimal. Unfortunately, the difference in pace is not.
 

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