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From Fellrnr.com, Running tips
→Terrain
So the formula is shown below, with p as the pace in seconds per mile and d as the distance in miles.
(0.000555476190476192p<sup>2</sup>-0.8333t+382)(1.0011d<sup>0.2012</sup>d)
For [[Excel]] users, the formula is
=(0.000555476190476192*H2*H2-0.8333*H2+382)*(1.0011*POWER(H3,0.2012)*H3)
Where H2 is the pace per mile in seconds and H3 is the distance in miles
==Terrain==
The scaling for terrain is simpler; just multiply by these factors:
There is no official definition for terrain. The proposal that was posted on the fitocracy forums seems to have wide adoption and is reproduced here.
{|{{table}}class="wikitable"|Classification||Grade||Gain and loss|-|Flat|| <1% || Elevation gain + loss <53'/mile(10m/Km)
|-
|Light Hills|| 1-2% || Elevation gain + loss <106'/mile(20m/Km)
|-
|Moderate Hills|| 2-3% || Elevation gain + loss <159'/mile(30m/Km)
|-
|Heavy Hills|| 3-4% || Elevation gain + loss <212'/mile(40m/Km)
|-
|Mountains|| 4+% || Elevation gain + loss >212'/mile(50m/Km)
|-
|}
=Points for mile 1-10 on Flat Terrain=
