Good nutrition is one of the biggest drivers of endurance performance, yet it's often overlooked. This guide explains how endurance athletes should fuel training, recovery and race day, covering carbohydrate, protein and fat intake, race-day fuelling, gut training, and the science behind high-fat versus high-carbohydrate nutrition.

Most runners judge a race by one thing: the finish time. But there’s far more to learn from race day than what the clock says. In this month’s Log Book, we break down KOTWF’s four-step approach to reviewing races properly - enjoyment, extraction, execution and education - and why every race is an opportunity to improve.

Sam and Katie head into the London Marathon balancing family life, business, and training - all while raising £5,000 for Muscular Dystrophy and Children with Cancer. We caught up with them to talk preparation, race plans, and what this one means beyond the finish line.

Running watches give us more data than ever — but more isn’t always better. We break down the key metrics that actually matter for your training, and the ones you can afford to ignore.

If you follow endurance athletes on social media, odds are you’ve heard of double threshold days, LT1, LT2 and seen the hype around things like ‘the Norwegian Method’. It’s all very sexy: logging inhuman amounts of volume and putting in double session days. It’s aspirational, right? But all of that belies a fundamental focus shift in endurance training.

A good season plan gives you direction without taking the joy out of training. It helps you learn from the year that’s just passed, choose goals that actually matter to you, and build a timeline that works alongside real life. In this article, we explore five key questions to help you approach your 2026 with clarity, balance and intent.

A season in sport is rarely a straight line. It’s shaped by long blocks of work that no one sees, moments that go exactly to plan, and others that force you to stop, rethink and adapt.

As the year draws to a close, we asked KOTWF elite athletes Morgan Newberry, professional para-cyclist and India Lee, professional triathlete, to look back on their 2025 seasons. They reflect on the performances, challenges and decisions that shaped their year, and how those experiences are influencing the way they think about 2026. Here’s what they had to say.

Taking a break can feel counterintuitive in endurance sport, but winter is the ideal moment to rethink your approach. A strategic off-season doesn’t have to mean losing fitness. The science of detraining shows that stepping back can actually set you up to make greater gains in the next season. In this article, we explore how to detrain correctly, why the winter recovery matters, and how a well-timed reset can prepare you for your strongest season yet.

It’s November. Halloween is over. Mariah Carey’s voice is haunting the aisles of your local supermarket. All the signs are there: British winter is nigh. 

Now, there are people who genuinely love winter - and there is a lot to love about it. But it’s probably not completely unreasonable to assume the majority of winter lovers aren’t endurance athletes.

The Log Book is back. After time spent growing, evolving, and exploring new frontiers, Kings of the Wild Frontier is reopening The Log Book: a space to share stories, tools, and inspiration from across our ever-expanding endurance community.