Guides · Sourced, No Magic
How to Run Mountains With Your Head
Pacing, physiology, and trail-race planning. Every claim is backed by a citation; what we don't know, we say so.

Why One Target Pace Is Enough for a Marathon — and Almost Never Enough for a Trail Race
Why average pace is nearly useless on trail, and how splitting the course into segments turns your watch reading into an actual reference point.

Why the same gradient feels completely different to different runners: the role of body mass, aerobic power, downhill-specific muscle conditioning, and trail surface.

Your watch, Strava, and the race website each give a different number — and nobody's lying. Here's why there's no single correct elevation gain.
The same course gives a different D+ in every app — why, and which number to trust at the start line.
How many carbs per hour your body can actually absorb while running, and how to schedule it by segment in advance instead of deciding on the fly.
New guides — every couple of weeks
No spam. Only when there's something worth citing.