Mark Ellison is a long-distance running enthusiast with a background in endurance training, trail running, and self-coached marathon and ultra preparation.
Running is one of the simplest sports on earth. Put on a pair of shoes, step outside, and start moving. Yet the deeper you go into endurance sport, the more you realise that running is not just about moving forward. It is about understanding effort, patience, physiology, and sometimes even
Few phrases in endurance sport carry as much anxiety as “hitting the wall”. It is the moment when pace collapses, legs feel unresponsive, and forward movement becomes an act of will rather than rhythm. For first-time marathoners especially, it is often the single greatest fear. From a coaching and exercise
Training for your first marathon is not simply about increasing distance. It is about building the physiological, structural, and psychological systems required to sustain effort for 42.2 kilometres without breaking down. From a coaching and exercise science perspective, most first marathons are not limited by motivation. They are limited
The long run is often described as the cornerstone of endurance training. That description is accurate, but it is rarely explained in physiological terms. Many athletes complete long runs because they are told to, not because they understand what adaptations they are stimulating or how those adaptations support race performance.
VO₂ max is one of the most referenced terms in endurance sport, and one of the most misunderstood. It is often treated as a badge of honour or a fixed genetic ceiling. From an exercise science perspective, it is neither. It is a measurable physiological capacity that can be trained,
Among endurance athletes, few terms are used as often - and misunderstood as widely - as “threshold”. It is commonly equated with discomfort, sustained effort, or simply running hard. From a coaching and exercise science perspective, threshold training is far more precise than that. When applied correctly, it is one
One of the most persistent misconceptions in endurance sports is the notion that improvement requires constant strain. Many runners assume that if a session does not feel challenging, it is not productive. This assumption quietly undermines more training plans than any lack of motivation ever could. From a coaching and
Endurance training rarely announces itself. There are no sudden breakthroughs, no dramatic transformations from one week to the next. Instead, progress accumulates quietly, through repetition that feels unremarkable in the moment. This is often unsettling for athletes new to long-distance running, who expect improvement to feel obvious if training is
From the outside, endurance training often appears repetitive. Weeks of running blend together, mileage rises, and fitness seems to emerge gradually through consistency alone. While consistency is essential, it is not the mechanism that drives improvement. Endurance fitness is built through structured phases, each designed to stress the body in
Few phases of endurance training feel as uncomfortable as the taper. After months of consistent effort, long runs, and structured fatigue, the sudden reduction in training volume can feel wrong. Legs feel strange. Energy fluctuates. Doubt creeps in. For first-time marathon and ultra runners, especially, the taper often feels like
Long-distance races rarely unravel because an athlete lacks fitness. More often, they unravel because decisions are made too late, under fatigue, pressure, or uncertainty. The difference between a well-executed race and a frustrating one is rarely dramatic. It is usually the result of planning that removes unnecessary decisions before the
Long-distance running attracts gear questions almost immediately. Shoes, packs, watches, poles, nutrition systems, clothing layers, mandatory kit lists. For athletes preparing for their first marathon, ultra, or long trail event, it is easy to believe that the right equipment will make the distance manageable, or that the wrong choice will