Why Walking Breaks Are Making Marathoners Faster, Not Slower

That stigma is dying, and the research killing it is more interesting than most people realise.

Strategic walking breaks, inserted on purpose from the first mile of a race, can match pure-running finishing times while cutting post-race soreness and lowering the risk of injury during training.

The Method That Started It All

Jeff Galloway, a 1972 US Olympian, began recommending structured run-walk intervals to recreational marathoners in the 1970s. The core idea was simple.

Insert short walking breaks every few minutes, from the start of the race, before fatigue forces them.

The method was dismissed for years as a crutch for beginners. Then the data started coming in.

The study that changed the conversation

A frequently cited marathon comparison tracked 42 runners split into run-walk and continuous-running groups.

The run-walk group averaged a finishing time of 4:14. The continuous group averaged 4:08.

A six-minute gap, statistically insignificant across a 26.2 mile effort.

The run-walk group also reported significantly less muscle pain and fatigue afterwards.

Why Walking Breaks Actually Work

1. Glycogen conservation

Running at marathon pace burns muscle glycogen at a near-maximal sustainable rate.

Walking drops energy demand sharply.

A one-minute walk every 5 minutes stretches available glycogen measurably, pushing back the point at which the "wall" arrives.

2. Reduced impact loading

Running produces vertical impact forces of roughly 2.5 to 3 times body weight on each foot strike.

Walking produces about 1.2 times body weight.

Repeated walking breaks reduce total cumulative loading over 42 kilometres, which lowers injury risk during training and softens quadriceps damage during the race.

3. Heart rate reset

A one-minute walk can drop heart rate by 15 to 25 beats per minute.

That reset lets runners re-enter running intervals at a lower starting heart rate, maintaining sustainable effort deeper into the race.

4. Mental fragmentation of the distance

Running a 42 kilometre race is psychologically crushing. Running 42 cycles of "4 minutes on, 1 minute off" is just 42 small efforts. The brain handles the second framing far better.

For a deeper look at pacing psychology, see our guide on running without stopping as a beginner.

The Elites Nobody Talks About

The run-walk approach has crept into elite ultra and trail racing without most road runners noticing. In races longer than 100 kilometres, strategic walking on steep climbs is standard practice, not a sign of weakness.

Even in flat road marathons, the aid-station micro-walk (3 to 5 seconds at a cup to drink properly) is routine among sub-elite finishers.

It costs almost nothing in time and prevents the choking and spilling that waste far more energy.

The stigma against walking is a cultural artefact.

The data has moved on. The runners paying attention have too.

Who Walking Breaks Actually Help

First-time marathoners

This is the clearest case.

For a first marathon, finishing with glycogen left and legs intact matters more than a few minutes of elapsed time.

Walking breaks protect against the catastrophic blow-up in the final 10 kilometres.

Masters runners

Runners over 50 recover more slowly from eccentric muscle damage. Walking breaks reduce that damage, which means faster return to training after the race.

Injury-prone runners

Shin splints, patellofemoral pain, plantar fasciitis, and tibial stress injuries are all linked to high cumulative impact load.

Walking breaks cut that load without eliminating the training stimulus.

A 2024 review supports graded walk-to-run progressions as the safest return path after bone stress injuries.

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Experienced runners chasing negative splits

This is the surprising category.

Elite ultramarathoners routinely use walking breaks on climbs and in aid stations, holding average pace through fatigue that would otherwise cause splits to collapse.

How to Try It

Pick a ratio based on current pace

• 6:00 min/km or slower: run 2 min, walk 1 min
• 5:00 to 6:00 min/km: run 3 min, walk 30 sec
• 4:30 to 5:00 min/km: run 4 min, walk 30 sec
• Sub-4:30 min/km: run 5 min, walk 30 sec

Start the breaks early

The single biggest mistake is waiting until exhaustion forces a walk. By then, glycogen is depleted and heart rate is spiking.

The breaks must start from mile one to deliver the benefit.

Practice in training

Try run-walk on at least three long runs before deciding whether to race with it.

The mental shift takes practice. The pacing takes rehearsal.

The Takeaway

Walking during a marathon has quietly stopped meaning failure and started meaning strategy

The runners finishing fresh at mile 25 while the fast starters shuffle past are often the ones who built walking into the plan on purpose.

For more on avoiding long-run mistakes, see our guide to the 7 major long-run mistakes to avoid.