Tuesday, January 10, 2012

The Real Distance - 6.2, 6.4, 6.5 or 6.8 miles.

I did my usual run - from North Square to the Mass Ave bridge and back. I ran at 3:30 pm while it was 46 outside (winds were gusting strong on the river - 18 knots). It was a good run - I started out slow - the hands were freezing it felt and there were several sore spots on the feet. Once I crossed Storrow I was crruising though. I got to Mass Ave bridge in 24:33 and got back in 23:26 giving a round trip time of 47:59. Happy with that.  One point of uncertainty is the exact distance I am running. I'm assuming it is 6.5 miles. If I map one way via Google it comes out as 3.1 miles - North Square to the bridge. However until recently it used to give a distance of 3.2 miles and it would include the walkway bridge over Storrow - which it no longer will. I tried to get a more accurate reading using the GPS on my phone. However, it comes out at 6.8 miles round trip which seems a little far.  So I don't know the exact distance. My pace could be 7:44 for 6.2 miles, 7:30 for 6.4 miles, 7:22 for 6.5 and finally 7:03 for 6.8.

Knowing the accuracy of your pace is important in my opinion if one is doing any long distance type of runs. 

One way of resolving it is to get a high end Garmin GPS - I don't fully trust my phone app. Another option is to get a bike odometer, ensure it's calibrated and ride the course. The results yet to be announced!

Assuming it is 6.5 miles, today I have completed running 229 miles since Oct 16th. That is when I started recording my mileage - right after I bought a new pair of Assics Gel Nimbus shoes. The store clerk pointed out that my old shoes were seriously worn out and were actually working against me. 500 miles is when they should be changed. Almost half way toward another new pair!

Okay full weather stats on this run. I think I'll start tracking these - it helps get a sense of how one performs in different conditions.
46 degrees Fahrenheit, 43% humidity. 29.75 barometric pressure, dewpoint 23, Wind WNW at 18 with gusts.Real feel 36 deg.
Starting out was cold on the hands. Any colder and I'd need to be dressed warmer.


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