The Knee Knacker is THE toughest run.
Perhaps it was for the fact that I went out a shade too quickly; that the course is a monster of roots and rocks, uphill kickers and quad obliterating downhill blasts; that my legs stopped working for me after Hollyburn; or that I preferred to ride my bike when training for this ultra marathon.
But, that does not change the fact that it is one tough mutha of a race.