Halfway through challenge 25 - Approximations of a challenge...

It's almost half way through 2013, therefore it's time for an update on Challenge 25...

There's some assumptions to be made - pretty robust ones, and ones that'll tend to an underestimate, so I'm happy with that.

In a normal sedentary day I do 5 km.  I've taken this from my Fitbit, and on the 5 or 6 sedentary days I've day this seem consistent whether its a day welded to my desk or just pottering around the shops.

My Fitbit underestimates the distance I walk by about 5% and overestimates runs by 5% - so we'll call that evens (even though it'll count against my total distance as I walk more than I run).

I've worn my Fitbit almost everyday since I got it - except the weeks it was lost - again an tendency to underestimate as I lost it on a 10 mile trail run, on weekend which also had a hill walk and a shorter hill run...

If you look at My Fitbit profile you should be able to find my lifetime distance - today (at the moment, I've a stroll to go on yet tonight) listed as 2329km... I need to take off 180 x 5 km (900 km) = 1429km and then divide it by 26 (half a year... )= 54km a week...

Yippee!!!! 54km a week is where I need to be - 25 miles is 40km, and I'm rolling out at an average of 33 miles a week. 

It's not been easy, trust me its not been easy and I've walked more than I would want to and run less than I wanted to... However, I'm happy. If my maths is correct!

The next couple of weeks will help define my running year - I've a 30 mile ultra in the Peak District and then my insanity... 100 miles in 3 and a half days. 

That legendary Willgossian stubbornness and quickness of recovery is going to be needed. 

So wish me luck...

TTFN

Paul

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