Endurance is built in ordinary weeks
Ultra running can look dramatic from the outside. The landscapes are huge, the distances are difficult to make sense of and the photographs usually show the most cinematic moments: snow, sand, river crossings, headtorches and finish lines.
But the truth of endurance is much quieter. It is built before the race starts, long before the tracker goes live or the medal is handed over.
Moggans athlete Ioana Barbu knows that better than most. In a single year she raced through ice, jungle, desert and mountains, becoming the first person to complete the Beyond the Ultimate Global Race Series in one calendar year. Her experience offers useful lessons for anyone who wants to run further, train smarter or simply become more resilient.
The best endurance athletes are rarely the ones who chase chaos in training. They are the ones who can repeat the right things consistently: easy runs, strength work, hill sessions, mobility, sleep, food, recovery and the discipline to stop before a niggle becomes an injury.
For everyday runners, this is the most useful lesson. You do not need an extreme race calendar to build endurance. You need a rhythm you can actually maintain. Three steady months will usually do more than three heroic weeks followed by burnout.
Ioana's race season demanded big performances, but it also demanded restraint. When the next event could be in a completely different climate, every decision had to protect the bigger picture.
Respect the environment
Endurance is not only about the body. It is about paying attention.
In multi-stage races, conditions can change quickly. Heat becomes a hydration problem. Cold becomes a dexterity problem. Mud becomes a pacing problem. Altitude becomes a patience problem. The runner who ignores the environment loses energy twice: once from the conditions themselves and again from fighting them.
Ioana's background in wild places shows here. She treats the terrain as part of the event, not an inconvenience. That mindset matters for any runner. A windy long run, a wet trail session or a hot race day is not a ruined run. It is information. It teaches you how your body responds and what your kit needs to do.
Recovery is not a reward
A lot of runners still treat recovery as something earned only after a hard block of training. Ultra running forces a different view. Recovery is not a reward; it is part of the plan.
During a multi-day race, there is no full reset between stages. You finish, eat, sort your feet, prepare your kit and try to sleep. Then you get up and do it again. If you waste recovery time, the next day exposes it.
That lesson transfers neatly into training. The easy run, the day off, the earlier night and the decision to keep a session controlled are not signs of weakness. They are the choices that allow you to keep training month after month.
The hidden skill is problem-solving
From the outside, ultra running is measured in kilometres. Inside the race, it is often measured in small problems solved before they become large ones.
The small decisions become big ones
Is that hotspot on your heel worth stopping for? Yes. Should you eat now, even if you do not feel hungry? Probably. Is it time to change socks, adjust your pack, put on a layer or slow down before the climb? These choices sound minor until fatigue starts turning them into consequences.
Ioana has described multi-stage racing as physical, mental and administrative in equal measure. That is a brilliant way to think about it. The runner who can manage details under pressure has an advantage.
For club runners, marathoners and trail runners, the same idea applies. Plan the boring things. Know your shoes, socks, food, bottles, jacket and pacing before the day matters.
Good people make hard things possible
Endurance can look solitary, but it is rarely done alone. Behind every big race are coaches, friends, event crews, family members, charity supporters and the runners who share the same tired campsite at the end of each stage.
Ioana speaks strongly about community, friendship and connection — including her work with the Global Make Some Noise challenge. That is part of what makes her story resonate. Hard races can strip people back, but they can also bring people together quickly. Shared discomfort has a way of removing small talk.
For most runners, this is a reminder to build your own version of that community. Train with people who make you better. Ask questions. Learn from runners who have been there. Encourage the person behind you as well as chasing the person ahead.
Test your kit before you trust it
There is no such thing as a small kit issue after several hours on your feet. A seam, wrinkle or rubbing point can become the thing you think about for the rest of the day.
That is why socks matter. They sit at the meeting point between shoe, skin and terrain. For long runs and ultra-distance efforts, a good running sock should fit securely, manage Merino's natural moisture management, feel comfortable when your feet swell and help reduce friction.
Moggans Merino running socks are designed for exactly those long, changeable conditions. Merino helps regulate temperature, feels soft against the skin and stays comfortable across a wide range of weather. The key is to train in the socks you plan to race in, then arrive at the start line with one less unknown.
For more on choosing the right sock for your training, see our Running Sock Buying Guide.
Endurance is rarely one big thing. It is the accumulation of sensible decisions, repeated often enough that they become who you are.
Train smart, build slowly and choose socks you trust before race day.
Read the full Ioana Barbu story: Meet Ioana Barbu: Ultra Runner, Explorer and Moggans Athlete. Or if you are preparing for a race, read our practical guide to ultramarathon foot care and blister prevention.
FAQs
How do you build ultra running endurance?
Build gradually with consistent weekly mileage, strength work, easy running, hill practice and recovery. The aim is sustainable progress rather than sudden big jumps.
What is the biggest lesson from multi-stage racing?
Small decisions matter. Eating early, managing your feet, changing layers and pacing well can prevent minor issues becoming race-ending problems.
What socks are best for ultra running?
Choose running socks that fit securely, reduce friction, manage moisture and stay comfortable over long distances. See our Running Sock Buying Guide for a full breakdown. Merino socks are a strong option for changing temperatures and multi-hour efforts.
