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Trail running

7 articles

Trail running, orienteering and adventure racing: getting started, improving and preparing for races.

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Torso of a trail runner in a black hydration vest with two soft flasks in the chest pockets, a blurred mountain ridge at sunrise behind

Trail runningChecklist

Trail Vest Size: The Right Liters and Packing

Seven guides from brands, retailers and coaches mostly agree: 2 to 5 liters for up to two hours of running, 5 to 8 for up to about ten hours, 10 to 15 for ultras. Those ranges hide what really counts: required gear, the distance between aid stations and loaded weight decide, and smart packing is what separates a vest you forget about from one that bounces all over.

Portrait of Nolwenn BastideNolwenn Bastide··9 min

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A runner's wrist with a black sports watch, its screen dark, held out over a ridge trail and a flowery grassy slopeTrail running

Heart Rate: Three Ways to Set Your Zones

Max heart rate, Karvonen reserve or threshold: three ways to calculate your heart rate zones for trail running, with a worked example and each method’s limits.

Portrait of Julien de JurquetJulien de Jurquet··10 min

Wooded trail at night seen at eye level: roots and wet leaves in a headlamp beam, a distant light in the mistTrail running

Night Trail Running: 15K by Headlamp

A 15K trail race run entirely at night: a headlamp that wouldn’t stay put, a beam aimed too low, misjudged roots, and the fixes to make before the start.

Portrait of Damien Poirier-BoucardDamien Poirier-Boucard··11 min

Runner in side profile, some distance away, leaving the end of a narrow paved lane for a dirt track between fields and the edge of an oak forestTrail running

Trail Running for Beginners: The Full Guide

Terrain, climbs, downhills, the gear race rules actually require, how to build up based on research, common mistakes, and your first race bib.

Portrait of Nolwenn BastideNolwenn Bastide··15 min

Muddy trail running shoe seen at ground level, mid-stride on a sodden woodland path between tree roots, under flat gray lightTrail running

How to Read a Trail Shoe Spec Sheet

Drop, stack height, lugs, membrane, width: what the numbers on a trail shoe measure, what research says about them, and what to choose for your terrain.

Portrait of Nolwenn BastideNolwenn Bastide··11 min

A woman trail running along a grassy ridgeline in early morning light, seen from behind, wearing a hydration vest, misty hills belowTrail running

First Trail Race: Your Training Plan

Training for your first trail race: a four-phase plan, climbs and descents, recovery, the taper, plus France’s health pass if you’re racing there.

Portrait of Nolwenn BastideNolwenn Bastide··8 min

Ridgeline trail winding up toward a rocky summit under a clear but stormy sky, the long climb plainly visible, with nobody on itTrail running

Comparing Trail Races When the Climbing Differs

100 m of climbing counts as 1 km: how to figure a trail race’s km-effort, read its ITRA points, and what the rule misses: downhills and rough terrain.

Portrait of Nolwenn BastideNolwenn Bastide··8 min