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[RC] Old Pueblo day 2 - John Teeter

On Mar 9, 2009, at 2:38 PM, k s swigart wrote:

I am guessing that GPS's have a tendency to measure AERC endurance rides as being 10% to 15% short is because often they ARE 10% to 15% short. Which would also explain why people often feel (as Steph said she did with Old Pueblo--and as many people did at the 20MT 65) that they were going faster than they anticipated. Me? I wasn't going faster than I anticipated (I know about how fast I can walk, and it ain't anywhere NEAR 7 mph), the course was short.

The ubiquitous availability of GPS devices and ease with which trails can be drawn in Google Earth will at least allow us to have a rough feeling as to the accuracy of GPS miles and of the validity of the sanctioned miles by the various sanctioning organizations.



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