Ultra-trail training plan: prepare for your long-distance goal

A first ultra requires a solid base: running consistently four times per week, tolerating a two-to-three-hour outing, and having completed at least one long trail race in good condition. Experience with the terrain, uphill hiking, and fueling matters as much as speed.

If you are returning after a break, recurring pain is present, or a two-hour run requires several days of recovery, build your base first. An ultra plan develops endurance you already have; it cannot replace several months of consistent training.

Allow roughly 16 to 20 weeks for a 50-to-70 km event and up to 20 to 24 weeks for a longer or more mountainous goal. This includes building volume, race-specific blocks, recovery weeks, and a two-to-three-week taper.

Reduce the load every three or four weeks so your body can absorb the work. Do not make up a missed session by overloading the following days. Over such a long build, consistency and health matter more than following the calendar at any cost.

A week can include an easy run with strength work, a hill or controlled-effort session, an easy run, a long run, and a short session the next day on tired legs. Strength work is attached to the easy run, so it does not create a sixth training day.

Keep two days free from structured training and place them after the hardest blocks. If you currently run four times per week, only add the fifth session once you recover well. It should initially remain short and very easy.

Start with the actual race profile: distance, elevation gain, altitude, length of the climbs, technical descents, and likely conditions. Gradually increase vertical time and learn to hike efficiently before exhaustion. Short hill repeats, stairs, or an inclined treadmill can supplement mountain outings.

Train the descents too, because muscular fatigue becomes decisive there. Work on cadence, foot placement, and quadriceps resilience without chasing speed every time. Never make large increases in volume, elevation, and technical difficulty during the same week.

The longest outings often reach four to five hours, depending on your level and terrain. Their purpose is to accumulate time on feet and test hiking, equipment, and fueling. Covering the full ultra distance in training would create disproportionate fatigue.

A few specific weekends can pair a long Saturday run with an easy session or active hike on Sunday. These blocks teach you to move on tired legs, but they should remain occasional and be followed by suitable recovery. They do not belong in every week.

A weekly 20-to-30-minute block can include lunges, squats, step-ups, light deadlifts, calf raises, core work, and balance exercises. Reduce its volume during the heaviest weeks, but keep a regular maintenance stimulus.

Monitor sleep, motivation, pain, and unusual fatigue. A lighter week or a cancelled session protects your preparation better than forced training. Persistent pain that changes your stride calls for a stop and, when needed, professional advice.

During long runs, test a regular strategy for carbohydrates, fluids, and electrolytes based on your tolerance and the conditions. Many runners gradually target 50 to 90 g of carbohydrates per hour, but this amount must be trained and individualized, never imposed on race day.

Validate your pack, shoes, clothing, lighting, and mandatory gear. For a race involving darkness, schedule a few headlamp sessions without sacrificing sleep. Build a simple aid-station plan and backup options for when a food no longer feels tolerable.