Why I prefer running on dirt roads over pavement

There's a particular quality to footfall on compacted earth that bitumen cannot replicate. After thousands of kilometres logging training for ultras and trail events, I keep drifting back to unsealed roads, fire trails, and the kind of gravel paths you find on the urban fringe of Australian cities. Pavement has its place, especially for speed work and races on closed roads, but for the steady, durable kind of running that I write about here, dirt has become my default.

The bias did not start as a philosophy. It grew out of injuries that refused to clear, blisters that came from nowhere, and a sense that the long training blocks behind my best events shared one quiet feature: most of the running happened on something softer than concrete. What follows is the case I keep making to myself, season after season, for choosing unsealed surfaces wherever the route allows.

Soft ground and honest muscles

A sealed road returns almost every joule of energy you put into it, but it also returns that energy straight back into your joints. Firm earth behaves differently. Each step sinks a little, then recoils, and the muscles of your feet and calves do more of the work in real time. Over a 25-kilometre tempo, that small adjustment adds up to thousands of micro-contractions your body has to coordinate.

This is one reason my legs feel more honest after a long run on dirt than on the equivalent distance on footpath. Sealed surfaces let sloppy mechanics hide. When the ground wobbles under you, your foot has to find its own platform on every contact. After a couple of months of consistent trail running, I notice better balance on stairs, on uneven kerbs, and on the cobbled corners of an outback campground. The body learns to stabilise itself rather than rely on a perfectly flat surface to do the job.

Joint stress and running economy

Hard running surfaces raise impact peaks by a measurable amount, and those peaks travel up through the tibia, the knee, and the hip. Most recreational runners absorb that quietly, week after week, until something twinges. Dirt, even when it is dry and sun-baked, distributes load across a wider contact patch and gives a small amount underfoot. The reduction in peak braking force is not enormous, but across months of training it becomes the difference between an uninterrupted build and a forced cutback.

For an Australian audience, the calculation also shifts with the season. A summer footpath in Brisbane or Perth can reach surface temperatures that genuinely damage skin, let alone cartilage. A gravel path beneath river gums is often 10 to 15 degrees cooler. I have measured it with an infrared thermometer on training runs in the You Yangs west of Melbourne, and the difference is striking. In heat-prone regions, the choice of surface is partly a choice of whether your body can keep absorbing the load at all.

A quieter mind on varied terrain

Pavement offers a kind of hypnotic focus that is useful for interval sessions. You see the lamppost, you reach it, you turn around. Dirt breaks that spell. Your attention has to widen. There is a corner to read, a dip in the surface, a tree root to step over, and the light keeps shifting under eucalyptus canopy. For an hour that drags on a sealed path, the same distance on a fire trail passes twice as quickly.

There is also the social quiet. On most days you will not see another runner on the unsealed loop I do around the Warburton Rail Trail, the forests near Toohey in Brisbane's south, or the fire roads in the lower Blue Mountains. That lack of audience changes the texture of the run. You stop comparing pace, stop checking the watch, and settle into the rhythm of effort rather than the rhythm of other people.

Where to find dirt in Australia's cities

The good news for Australian runners is that almost every major city sits within an hour of some kind of dirt. Melbourne has a generous network: the Main Yarra Trail, the green wedges around the Dandenong Ranges, and the open farming tracks past the You Yangs. Sydney's southern suburbs feed quickly into the Royal National Park and the trails around Loftus and Heathcote. Brisbane runs on Toohey, the River Hills tracks, and the well-maintained Daisy Hill trail network. Adelaide leans on its foothills and the Belair loop. Perth draws on Walyunga and the Kalamunda zigzags.

Cycling and walking etiquette on shared paths is set under local council rules, and on most networks runners keep left and step aside for bikes. Where trails cross rural roads, the relevant state road authority requires you to give way to traffic, including on quiet gravel connectors. Knowing the rules keeps access open for everyone, and it matters more each winter as parkrun-style crowds spill onto the same paths.

Pacing, stride and race-day transfer

Dirt roads teach a slower cadence by default. To keep rhythm on uneven ground, you shorten the stride, lift the feet a little higher, and land closer to underneath the body. That adjustment transfers well to ultras, where the second half of an event is almost always won on economy rather than speed. I have lost count of the races where my form held because months of unsealed running had trained a stride that did not depend on flat ground.

Speeds on pavement are useful and I am not arguing that bitumen should be avoided altogether. Hills, sprints, race-pace work, and certain key sessions still belong on a measured surface, often a quiet suburban loop with a watch-friendly stretch. Dirt is the base. Pavement is the sharpening stone, applied in small doses against a wider background of softer, slower, more varied training. The mix tends to produce a runner who can move between surfaces without resentment.

Endurance lessons that travel beyond the run

One thing I have learned across a decade of long events is that the habits behind a successful training block, patience with rhythm, willingness to adjust to changing conditions, focus on the next half kilometre rather than the whole day, also transfer into other long-haul work. The same impulse that has me looking for a quiet loop when the legs feel heavy is what carries me through a slow quarter at work or a project that drags past its expected end. I keep seeing how runs mirror projects, and the parallel is too useful to ignore.

Factor Dirt roads Pavement
Joint impact Lower peaks; surface gives slightly Higher peaks; fully rigid
Muscle loading Greater calf, foot and hip stabiliser demand More passive transfer through joints
Mental texture Varied, scenic, lower competitive pressure Steady, hypnotic, easy to benchmark pace
Heat behaviour Cooler under tree cover; far lower surface temps in Australian summer Can reach skin-damaging temperatures in direct sun
Speed benchmarking Less precise; watch drift on uneven ground Highly consistent; ideal for intervals
Accessibility in major Australian cities Strong around Melbourne, Brisbane foothills, Perth hills, Sydney's national parks Universal, including shared paths and parkrun venues
Suitability for ultras Excellent; mimics race terrain Limited transfer; useful only for sharpening sessions
Adaptation needed A few runs to find new rhythm None

The next step is simple: pick one run this week, even a short out-and-back, on the closest unsealed track to home. Pack the shoes that can handle it, expect the first run to feel awkward, and notice what your ankles and your attention are doing differently by the time you stop.