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Kieran Alger

A borderline obsessed ultra runner, Kieran Alger covers all things running, health, fitness, sports and technology. You'll often find him wearing two running watches, eating the latest energy gels and using the latest technology to hack his health, fitness and running form in search of marginal gains.

Articles
The best trail running backpacks
Get Running
The best trail running backpacks
Our updated guide to everything you need, from short trails to multi-stage ultras
Top hydration packs for runners
Get Running
Top hydration packs for runners
Don't go chasin' waterfalls – choose a pack that means you don't have to
Top hydration packs for runners
Get Running
Top hydration packs for runners
8 tests to see how fit you really are
Sweat Workout
8 tests to see how fit you really are
Test yourself against the most popular measurements used by athletes and coaches
8 tests to see how fit you really are
Sweat Workout
8 tests to see how fit you really are
Essential runner hydration tips
Sweat Running
Essential runner hydration tips
Get the lowdown on how much you should be drinking for your mileage
Essential runner hydration tips
Sweat Running
Essential runner hydration tips
The essential New York Marathon guide
Go Running
The essential New York Marathon guide
Insider advice on the world's biggest road marathon
The best new fitness tech for smart workouts
Get Workout
The best new fitness tech for smart workouts
Train like Marty McFly with the latest in digital-age fitness equipment
Essential guide: The Marathon des Sables
Go Running
Essential guide: The Marathon des Sables
From nutrition and kit to insider tips and tricks to make sure you cross the finish line
Electrolytes and hydration for running
Get Running
Electrolytes and hydration for running
Because water alone isn't going to cut it when you're training for endurance events
Your ultrarunning essentials kit guide
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Your ultrarunning essentials kit guide
Everything you need to pack before hitting the trails, sand, mountains or rocks
Best energy gels to buy
Get Running
Best energy gels to buy
The best portable power-ups to support your endurance feats
Best energy gels to buy
Get Running
Best energy gels to buy