How to prepare for an autumn trail run?

Autumn is a beautiful season for trail running, especially with the changing colors of the forests. But autumn also means that conditions are changing and you must, of course, adapt to them. So how do you prepare well for an autumn trail race? Which equipment should you choose? How do you adapt training to race conditions? What other details should you think about?

Autumn equipment

Three key parts of your equipment should be prepared accordingly for an autumn trail: shoes, clothing, and accessories.

Trail shoes must be suited for damp, potentially muddy terrain. The most important thing is therefore to ensure very good grip on slippery surfaces. It is key to check the condition of your trail shoe soles before starting your autumn preparation to ensure you maintain good traction.

For clothing, the double-layer principle is essential as soon as temperatures drop. The best base layers for this time of year are breathable technical base layers with a thermal effect (in short or long-sleeve formats depending on the temperature drop). The second layer can be a breathable running jacket to protect against wind or rain, which you can potentially carry in a trail pack. For the first weeks of autumn training when the weather hasn't completely changed, an intermediate option remains a lightweight long-sleeved running T-shirt.

Regarding accessories, you should think about the standard list for a trail run, which includes a trail pack, flasks, hydration and nutrition, a phone, and potentially poles depending on the elevation gain and technical nature of the course. In addition to this standard list, the accessories to consider for an autumn trail depending on weather conditions are: a cap or beanie, gloves, an emergency blanket, and a headlamp in case of an early start or late finish.

Of course, every piece of equipment deserves to be tested before the big day.

Race conditions

To prepare well for an autumn trail race, the most important thing is to train in conditions as close as possible to the race day (or night, as the case may be). This may require specific training sessions with low visibility, requiring the use of a headlamp. This naturally includes training sessions to manage ascents and descents or technical sections relatively similar to the race course.

Another key dimension of training is running in conditions similar to the race, such as running on damp terrain, in relative cold, or in potential wind and rain conditions on race day. This allows the body to adapt to conditions comparable to the race and, of course, to test your equipment before the big day.

Adapting your training

For an autumn trail, you must adapt your training by gradually adjusting distances and elevation gain, by incorporating runs on terrain close to the race course, and by working specifically on ascents and, above all, descents. It is possible to keep a few tempo sessions, but without neglecting endurance. As with any race, it remains essential to gradually reduce the training load before the race, prioritizing freshness and recovery. It is key to test your nutrition strategy during training. A race is never the time to discover that a gel, drink, or bar does not suit you.

Do not forget that on an autumn trail, mud, elevation gain, or conditions can make your kilometer times very variable.

To summarize: in autumn, preparing for a trail race is above all about anticipating conditions and knowing how to adapt to them. It is also about choosing suitable and tested equipment and following a training plan to prepare for the terrain and weather. You must also not forget that on autumn trails, you need to adjust your pace to the terrain, conditions, and how you feel to fully enjoy the race.