How to Train for Your First 24-Hour Race

What Makes 24-Hour Training Different

A 24-hour event rewards sustainable movement and good decisions more than any single training pace. Preparation has to cover ordinary endurance fitness plus walking, fueling, foot care, temperature changes, equipment, and the ability to change the plan when something is not working. For the format, strategy, and calendar resources around this plan, start from the 24-hour race guide.

How Much Training You Need

The best study of recreational 24-hour runners found two things that predicted race distance: the longest training run before the race and marathon personal best. Weekly volume mattered less once those were known. Knechtle and colleagues followed 63 runners who averaged 146.1 km, and suggested that a long run of about 60 km and a marathon around 3:20 go with the best results. An earlier study of 15 male finishers of the 2007 Basel 24-hour run, who reported an average of 98.8 km of training a week.

From that, our recommendation is three tiers. Pick the one that matches your goal, not the most ambitious one.

Check your goal against the study. The Knechtle equation is 234.7 + 0.481 × longest training run (km) − 0.594 × marathon best (minutes). A 4:00 marathoner whose longest run is 40 km gets about 111 km; a 3:30 marathoner with a 50 km long run gets about 134 km. It explained just under half the variation between runners, so treat it as a sanity check, not a forecast.

The 12-Week Plan

Twelve weeks is enough if you are already running 4–5 times a week. Volume rises through weeks 1–9 to your tier's peak, then falls for the taper. Repeat a week instead of progressing if you are not recovered.

A Worked Peak Week

This is a peak week (week 8 or 9) for the Finish tier: about 8.5 hours and 65–70 km of running and walking, plus two 20-minute strength sessions. Target-tier runners add an extra easy hour midweek and stretch Saturday to 6 hours.

Getting there: reach this week by adding about 10% a week from where you start. Do not lengthen the long run and add the back-to-back day in the same week.

A completed rehearsal review

Example log: planned 4 hours; completed 3 hours 48 minutes moving and 12 minutes stopped. The food stayed down; finding spare socks took four minutes. Next session: label the sock bag and aim for under 8 minutes stopped. Saving 10 minutes every 4 hours adds up to an hour over 24 hours, worth about 5 km at first-timer pace.

For race arithmetic, 120 km in 24 hours with two hours stopped means 22 moving hours: 11:00 per km moving pace, versus 12:00 per km across the full clock. This is a calculation, not a prediction. Compare your own assumptions in the pace calculator and run/walk calculator, then record stops in the crew planner.

Why build volume at all: the Burgess study followed 106 runners tracked across 14 weeks around the 2018 Comrades Marathon, in which lower pre-race training loads were associated with higher injury risk. Undertraining, not only overtraining, raised injury risk.

Weekly Decision Rules

A good week has 4–5 runs, one long run, two short strength sessions, and at least one full rest day. Keep 80% or more of running easy enough to talk. Change one thing at a time: duration, frequency, elevation or intensity.

• Progress after recovery: repeat the same load or take a lighter week if soreness, sleep, mood, or easy pace has not returned to normal.
• Protect easy days: race-specific practice should not turn every session into a depletion test.
• Keep recovery visible: schedule rest, adequate food, and sleep as part of the plan rather than as rewards for completing it.
• Individualize with help: a qualified coach can translate these principles into training that reflects your background and event.

Progress Time on Feet

Add 30–45 minutes to the long run every one or two weeks until you reach your tier: 4–5 hours for Finish, 6–8 hours for Target. Run the long run as run/walk from the start, eat on schedule, and stop for one sock change, so each one rehearses the race.

Long-session duration is not a badge of readiness. Stop adding time when form deteriorates, a focal pain changes your gait, nutrition is no longer staying down, or the session creates fatigue that disrupts the following training cycle. A shorter repeatable session is more useful than an extreme outing that requires prolonged recovery.

Back-to-Back Sessions

A back-to-back is a long run followed the next day by a shorter one, typically 40–50% of Saturday's duration. It teaches you to run on tired legs without the recovery cost of one very long day. Finish-tier runners need one; Target-tier runners do one every second weekend from week 6.

Add this pattern only after single long sessions are stable. Remove it if pain, sleep disruption, unusual fatigue, or declining performance carries into the next week. Runners with recurrent injury may be better served by walking, cycling, or another lower-impact option selected with a clinician or coach.

Walk Training

Walking is how most runners finish 24 hours, not a sign the race has gone wrong. Our default is 25 minutes running and 5 minutes walking from the first hour, at a brisk 6 km/h (10:00 per km) walk. At 25:5 you walk for about 4 of the 24 hours, so walking at 6 km/h instead of 5 km/h is worth about 4 km.

• Compare short planned breaks with walking only when effort rises.
• Practice smooth transitions without sprinting to make up time.
• Use the actual course gradient when deciding where walking may help.
• Test poles only if the event permits them and you already know how to use them safely.

Night-Equipment Practice Without Sleep Loss

Darkness changes visibility, footing, temperature, and equipment needs. Test those variables after sunset on a safe, familiar route with suitable support. End the session in time to protect normal sleep; there is no need to rehearse a 24-hour race by deliberately staying awake.

Check your primary and backup lights, reflective details, warm layers, battery changes, and the ease of eating while wearing night gear. If you plan to use caffeine, test the race dose in a late-afternoon long run: about 50 mg an hour, or 1–2 mg per kg every two hours, as set out in the 24-hour nutrition guide.

Strength and Recovery

If strength training is already part of your routine, retain one or two manageable sessions built around sound technique. Step-ups, split squats, calf raises, hip-hinge movements, and trunk exercises are possible options, not a compulsory checklist. Start with professional instruction if these movements are unfamiliar or provoke symptoms.

Adequate energy intake matters as training grows. Persistent fatigue, recurrent illness, declining performance, mood changes, reproductive changes, or repeated bone and tendon problems can be signs that load and recovery are out of balance. Do not answer those signs by adding more training.

Prepare Decisions, Not Suffering

Mood and attention can fluctuate during a long event, and reasons for non-completion are multifactorial. Prepare simple responses for ordinary problems while keeping medical stop rules separate from motivational strategies.

• If effort drifts up, slow down or walk and reassess the pacing plan.
• If food becomes unappealing, use a previously tested alternative rather than an improvised product.
• If a hot spot develops, address it early instead of waiting for a blister.
• If low mood arrives, narrow the task to the next routine check and ask crew for help.
• If confusion, fainting, chest pain, severe breathlessness, or loss of coordination occurs, stop and seek medical help.

Taper and Race Week

Taper for two weeks. The Wang meta-analysis of endurance athletes found the best results with tapers of up to 21 days that cut volume by 41–60% while keeping intensity and session frequency unchanged. In practice: about 60% of peak volume in the second-to-last week and about 40% in race week, with two short runs at race pace.

Keep movement familiar, remove demanding race simulations, prioritize sleep and adequate eating, and avoid making up missed training. If you are still unusually fatigued or symptomatic near race day, a coach or sports clinician can help decide whether starting is appropriate.

Stop and Adjust Criteria

Pause progression and seek qualified assessment for pain that changes your gait, focal pain that persists or worsens, recurrent illness, unexplained performance decline, or fatigue that does not improve with rest. Stop immediately and seek urgent care for chest pain, fainting, confusion, severe breathing difficulty, or other acute concerning symptoms.

• Avoid copying volume: another runner's week says nothing about what you can currently absorb.
• Avoid rehearsing exhaustion: test systems without recreating race-day damage or sleep loss.
• Avoid stacking changes: alter one training demand at a time.
• Avoid under-fueling the build: increasing load while restricting intake can impair health and performance.
• Avoid treating the start line as mandatory: unresolved symptoms are a reason to reassess, not a test of commitment.