How the run-walk method works
Run-walk means alternating fixed periods of running and walking from the very start of a run — not walking only once you are exhausted. The approach was popularised by Olympian and coach Jeff Galloway, and it has helped huge numbers of people finish their first half marathons and marathons.
Short, regular walk breaks change which muscles are working, lower heart rate briefly, reduce the pounding on your legs and make fuelling and drinking easier. Crucially, they delay fatigue, so many runners can hold a steadier pace late in the race than they would running continuously.
How the calculator works
One run-walk cycle is one running interval plus one walking interval. The calculator works out how far you travel in a cycle and turns that into an average pace:
average pace = (run time + walk time) ÷ cycle distance
In Pace for a goal mode it works backwards: given a goal time, intervals and walk pace, it solves for the running pace you need during the run segments.
Run-walk pace chart
Average pace per km for common ratios, assuming a 10:00/km walking pace.
| Run pace | 1:1 avg | 2:1 avg | 4:1 avg | 9:1 avg | Marathon at 4:1 |
|---|---|---|---|---|---|
| 5:00 /km | 6:40 | 6:00 | 5:33 | 5:16 | 3:54:25 |
| 5:30 /km | 7:06 | 6:28 | 6:03 | 5:46 | 4:15:01 |
| 6:00 /km | 7:30 | 6:55 | 6:31 | 6:15 | 4:35:11 |
| 6:30 /km | 7:53 | 7:22 | 6:59 | 6:44 | 4:54:55 |
| 7:00 /km | 8:14 | 7:47 | 7:27 | 7:13 | 5:14:13 |
| 7:30 /km | 8:34 | 8:11 | 7:54 | 7:42 | 5:33:07 |
| 8:00 /km | 8:53 | 8:34 | 8:20 | 8:10 | 5:51:38 |
Choosing a run-walk ratio
| Situation | Common starting ratios |
|---|---|
| Brand-new to running | 30 s run / 60–90 s walk, building gradually over weeks |
| Building to your first 5K | 1:1 to 2:1 minutes |
| Half marathon, recreational | 2:1 to 4:1 minutes |
| Marathon, recreational | 2:1, 4:1 or 9:1 minutes depending on fitness and heat |
| Hot days or returning from injury | Use a more generous walk portion than usual |
Walk early, walk briskly. The benefit comes from taking breaks before you are tired. Walk purposefully with short, quick steps — a slow shuffle costs time without much extra recovery. A simple interval timer on your watch makes it automatic.
Run-walk on race day
- Start your intervals from the gun. The temptation is to skip early walk breaks while you feel fresh — that is when they bank the most energy.
- Use aid stations. Line up a walk break with each drinks station so you can drink without spilling.
- Move to the side before walking so faster runners behind you are not blocked.
- Pace by average, not segments. Your watch’s lap average is what matters; set a pace band from the result with the pace band generator.
Keep your running segments truly easy by checking them against the heart rate zone calculator, and plan gels and drinks with the race fueling calculator.
Last reviewed: September 2026 · Health disclaimer