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Discussion: Time/distance differences

in: bugsInTeeth; bugsInTeeth > 2016-01-27

Jan 28, 2016 3:04 PM # 
Noticed that you and Simpy have very different readings from run even though we started/stopped from the same place...nearly 7% difference for time and 4.5% difference for distance...any idea why?
Jan 28, 2016 4:20 PM # 
time could be due to my garmin not having the autopause set. (just a thought) and as for distance, I am sure i ran further than him. ;)

In all seriousness, distance could be attributed to Suunto providing better adjustments for elevation than my garmin.
Jan 28, 2016 7:18 PM # 
Simpy's time was shorter than BiT, which you would expect if Simpy *did* have Autopause on. Or maybe you turned it off and on when the group stopped?

And I've almost always found that an Ambit measures a shorter distance on twisty forest trails than a Garmin due to different error correction algorithms. (Although those algorithms can change over time.) So it seems strange that Simpy's distance was shorter too.

Mrs. Gally and I noticed about a 10% distance difference today between Garmin and Ambit but our times were the same, as they should be.

If anyone in the group has a barometric altimeter (like BiT does), their elevation gain is the most trustworthy.
Jan 28, 2016 7:49 PM # 
i did manually pause a few times while i waited for the team to catch up to me. ;)
Jan 28, 2016 9:56 PM # 
Yeah distance is likely just the different watch algorithms, as Judy mentioned she had 21.6km or so on her Ambit. As for time, I know I started my watch a few minutes late, but not the 10 minutes difference. Once I started it though, I didn't stop it.

I was going to say the extra distance I had could have been for when I ran back to see if simpy was OK on his big wipe out. But then I remembered, I didn't run back to see if he was OK. :P
Jan 29, 2016 12:14 AM # 
Simpy...the walk into and out of the burrito shop does not count.
Jan 29, 2016 12:27 AM # 
Maybe next run let's put both watches on one of us and have them run nonstop and comare distance. I definitely think yours is more accurate
Jan 29, 2016 2:19 AM # 
Shall I run on the trail with a rolling metre wheel to determine "actual"?
Jan 29, 2016 4:17 AM # 
Pace count Escondido, might be easier.

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