Updated August 2026

There is a pattern I see repeatedly as a running coach. A runner comes to me having done everything road running had to offer. They have run their marathons. They have chased their PBs. They have stood on start lines in city centres with thousands of other runners and crossed finish lines with medals around their necks. And then one day they ask me what is next.

The answer, more often than not, is trail.

But trail running is not just for runners who have exhausted road running. I see runners switch to trails because their knees are telling them that consistent road pounding is not sustainable. I see runners who have never run at all choose trail as their starting point because the idea of running through woods and over hills feels more compelling than running along a pavement. I see runners returning after illness or injury who find that soft, varied ground gives their bodies something road running never did.

This guide is for all of them. Whatever brings you to trail running, this is how to start.

Why Trail Running Is Different From Road Running

The most important thing to understand about trail running is what makes it physically different from road running, because that difference explains why so many road runners find it transformative rather than just a change of scenery.

Road running is consistent pounding. Your foot strikes the same hard surface in roughly the same way with every stride. The same muscles take the same load in the same pattern, mile after mile. Your body adapts to that pattern efficiently, which is why road runners get faster and more economical over time, but it also means the same structures absorb the same stress repeatedly. For many runners, particularly as mileage increases or age becomes a factor, that consistency becomes a problem.

Trail running is varied engagement. Every stride is different. The terrain changes beneath your feet constantly: harder packed ground, softer earth, rocks, roots, grass, mud, camber. Your foot strikes at different angles, your stabilising muscles fire in different patterns, your body has to constantly adapt and respond rather than executing the same movement repeatedly. That variety distributes load across a wider range of muscles and structures rather than concentrating it in the same places every time.

The practical result is that many runners whose knees, hips or shins struggle with consistent road mileage find trail running significantly more comfortable despite it feeling harder aerobically. Softer ground absorbs impact rather than returning it. Varied terrain engages muscles that road running leaves dormant. The body gets a different kind of challenge rather than more of the same.

This does not mean trail running is injury proof or that it is the right solution for every road running injury. But for runners whose bodies are telling them road running is not sustainable long term, trail is often worth exploring seriously rather than dismissing.

Who Trail Running Is For

The road runner who has done it all

You have run your marathons. You have chased your half marathon PB for three years. You are not burnt out but you are ready for something different. Trail running offers you everything road running does not. Unmarked courses. Navigation. Terrain that changes every mile. Races where finishing matters more than time and where the person in last place gets the same cheers as the winner.

Many of the strongest trail and ultra runners I know came from a road background. The fitness transfers almost entirely. The technique takes a little time. I have done it myself, switching between trail and road training blocks and finding that focused trail running made me a stronger, more efficient road runner when I came back. In fact, some of my best road PBs came after extended periods of trail training.

The runner whose body is struggling with road

If your knees are sore after long road runs, if your shins complain after back to back road sessions, if your hips feel the cumulative load of consistent pavement pounding, trail running is worth trying before you conclude that high mileage running is simply not compatible with your body.

The varied terrain, softer ground and different muscular engagement of trail running genuinely suit some runners whose bodies struggle with the repetitive nature of road running. It is worth exploring honestly rather than assuming road running is the only option.

The complete beginner

If you have never run seriously and you are drawn to the idea of running through woods, over hills and across open moorland rather than along pavements, trail running is a completely legitimate starting point. You do not need to earn trail running by doing road running first. In some ways, beginning on trail is an advantage. You learn from the start to run by effort rather than pace, which is one of the most important skills in endurance running.

The runner returning after injury or illness

Coming back to running after time away is one of the most delicate processes in the sport. Trail running on softer varied terrain gives returning runners a surface that is genuinely more forgiving than road without sacrificing the cardiovascular and psychological benefits of being back out there. When I return to running after my current health setback, trail will be my first choice for exactly this reason.

How to Start Trail Running

Start shorter than you think you need to

Your road running fitness will not transfer one for one to trail. You may be able to run a road half marathon comfortably but find that five miles on technical trail feels genuinely hard. Ten miles on trails can feel more like thirteen or fourteen on road. That is not a fitness failure; it is the muscular and neurological demands of trail running engaging systems that road running has not developed. Start shorter and slower than your road running would suggest and build gradually.

Run by effort, not pace

Forget your road pace entirely. Trail pace is meaningless as a metric because terrain varies so dramatically that the same effort produces completely different paces on different sections. Run by how hard you are working rather than what your watch tells you. Easy effort on trail should feel conversational.

Walk the uphills without apology

Walking uphill on trail is not weakness. It is strategy. The best trail and ultra runners in the world walk sustained climbs because power hiking at a controlled effort is often faster and always more economical than running them. Give yourself permission to walk uphills from your very first trail run. You will go further, feel better and finish stronger. Trust me, I learned this the hard way at my first fell race when I tried to run a climb that turned out to be a false summit and paid for it badly.

Choose your first routes carefully

Start on marked trails rather than open fell or mountain terrain. Footpaths, bridleways and waymarked trail routes give you the trail running experience without the navigation demands of fell racing or open mountain running. Your local woodland, country park or coastal path is a completely legitimate starting point. And go with someone who knows the route if you can, getting lost on your own is not much fun and safety matters.

Get the right shoes

Road shoes are not appropriate for trail running. You need grip, stability and protection that road shoes simply do not provide. A trail shoe with a grippy outsole gives you the traction to handle wet grass, mud and technical ground with confidence rather than anxiety. Keep your road shoes for the road and get a dedicated pair of trail shoes for off-road running.

The Trail Running Shoe Question

Choosing the right trail shoe is the single most important kit decision for a new trail runner. Here is a simple guide to where to start.

ShoeBest ForTerrainPrice
Hoka Speedgoat 7Best all-round beginner trail shoeMixed terrain, wet rock, varied trailAround £150
Salomon Speedcross 6Best for mudSoft ground, mud, fell terrainAround £130
Inov-8 Trailfly SpeedBest for technical rocky terrainRocky, rooty, technical trailAround £130
Altra Lone Peak 9+Best zero drop optionMixed trail, ultra distancesAround £140

For most road runners switching to trail, the Hoka Speedgoat 7 is the most natural starting point. The wide base and generous cushioning suit runners coming from road who are used to a more forgiving underfoot feel, while the Vibram Megagrip outsole provides the grip that road shoes cannot. See our full best trail running shoes guide for detailed recommendations across budgets.

If you have wide feet — and many road runners do, particularly those who have been running for years — see our best wide fit trail shoes guide and best wide fit trail shoes for women for specific recommendations.

HOKA SPEEDGOAT 7 – BUY NOW – MEN’S HOKA SPEEDGOAT 7 – BUY NOW – WOMEN  

SPEEDCROSS 6 – BUY NOW – MEN   SPEEDCROSS 6 – BUY NOW – LADIES

Other Kit Worth Considering

A waterproof jacket — for UK trail running, a lightweight packable waterproof is essential rather than optional. British weather does not respect training plans, and most trail races require one as mandatory kit.

A running vest or belt — for anything over an hour, you need to carry water. A simple running belt works for shorter distances. For longer runs, a small trail vest is more comfortable and practical. See our best trail running vests guide for recommendations.

A GPS watch — not essential to start but genuinely useful for effort management on hilly terrain. Grade adjusted pace shows your equivalent flat effort on climbs which removes the confusion of watching your pace spike on every hill. See our best Garmin watches for trail running guide for current recommendations.

Merino wool trail socks — a small investment that makes a disproportionate difference to blister prevention on longer efforts.

Fuelling on Trail

If you are going out on the trails with no access to a shop or water tap for miles, plan your fuelling properly. Always carry water and some emergency fuel. Unlike road running where gels are the standard, trail running allows for real food. A jam sandwich, some dates, a piece of flapjack. The longer efforts of trail running require proper fuel and the slower pace makes eating solid food genuinely manageable in a way it never is at road race pace.

Your First Trail Race

Entering a trail race gives you a goal to train toward and introduces you to the trail running community in the most direct way possible. For first-timers, choose a shorter marked course with regular checkpoints rather than a navigation race or fell race. Parkrun trail events are an excellent starting point, free, friendly and low pressure.

For runners ready to step up to fell racing specifically, our guide to how to train for your first fell race covers everything from training to mandatory kit to what to expect on race day.

Enjoy Both Road and Trail

Trail running does not have to replace road running. Many runners, myself included, do both. Road running gives you speed work, measurable PBs and the satisfaction of chasing times. Trail running gives you variety, strength, adventure and a completely different relationship with running.

A few years of trail running genuinely made me a stronger road runner. If I focus on speed work and incorporate some decent sessions into my training, I can soon get back to near my best on road. Some of my best road PBs came after extended periods of trail training. The two disciplines complement each other far more than they compete.

Frequently Asked Questions

Is trail running harder than road running?

Trail running is different rather than simply harder. It is typically slower, more technically demanding and engages a wider range of muscles than road running. Many runners find it less hard on their bodies despite feeling more challenging aerobically. Your road running fitness transfers well; the technique and terrain management take a little time to develop.

Can road runners switch to trail running?

Completely and often very successfully. Road runners bring genuine fitness advantages to trail running. The adjustment is primarily in pace expectation, uphill technique and terrain management rather than cardiovascular fitness. Many of the strongest trail and ultra runners come from a road running background.

Is trail running better for your knees than road running?

For some runners, yes. The varied terrain, softer ground, and different muscular engagement of trail running distribute load more broadly than the consistent pounding of road running. This is not universal, and some conditions are aggravated by uneven terrain. If you have a specific knee issue, it is worth discussing with a physio before switching surfaces.

What trail running shoes do I need as a beginner?

A trail shoe with a grippy outsole, some cushioning and good lateral stability is the right starting point. The Hoka Speedgoat 7 is one of the most forgiving and versatile beginner trail shoes available. See our best trail running shoes guide for full recommendations.

How much slower is trail running than road running?

As a rough guide, ten miles on trail typically feels like thirteen or fourteen on road in terms of effort and time. Expect to be one and a half to two minutes per mile slower on trail than road as a starting point, more on very technical or hilly terrain. Do not compare your trail pace to your road pace and do not get disheartened by the difference.

Do I need to be able to navigate to go trail running?

Not to start. Marked footpaths, bridleways and waymarked trail routes are perfectly suitable for beginner trail runners. Navigation becomes important if you progress to fell racing or mountain running, but for most trail running on marked paths a GPS watch and a map app on your phone is sufficient.

How do I find trail running routes near me?

OS Maps, Komoot and Strava Route Builder are the most useful tools for finding and planning trail running routes. Joining a local trail running club or attending a club trail run is the fastest way to discover the best local routes with people who already know them.