How it works
blended pace = (run secs + walk secs) ÷ (run distance + walk distance)
Each run-walk cycle covers some distance running and some walking. Running for the run interval at your run pace covers run-interval ÷ run-pace of distance; walking for the walk interval at your walk pace covers walk-interval ÷ walk-pace. Add the two distances and divide the total cycle time by it to get the blended average pace — the pace you would record over the whole effort. For example, running 2:00 at 9:00/mile then walking 0:30 at 18:00/mile covers exactly 0.25 mile in 2:30, a blended 10:00/mile. The projected finish is that blended pace multiplied by your race distance. Everything is computed consistently in your chosen unit, so the run, walk and blended figures all agree.
Sources
- Galloway Run-Walk-Run method Jeff Galloway, “Galloway’s Book on Running” and the Run-Walk-Run method — strategic walk breaks reduce fatigue and injury while maintaining overall pace.
- Blended pace is a weighted average Average pace over mixed efforts is total time divided by total distance — the standard time-weighted mean of the run and walk segments.
- Walk breaks and endurance Interspersing walk breaks early conserves glycogen and muscle, which is why many runners finish faster overall with run-walk than running continuously to exhaustion.
FAQ
What is the run-walk-run method?
A pacing strategy of alternating short running and walking intervals from the very start of a run — for example run 2 minutes, walk 30 seconds, repeat. Taking walk breaks before you tire reduces fatigue and injury risk and often produces a faster overall time than running non-stop.
What run-walk ratio should I use?
It depends on your fitness and the distance. Common ratios range from run 1:00 / walk 1:00 for beginners to run 4:00–6:00 / walk 0:30 for stronger runners. Experiment in training; the calculator shows how each ratio changes your blended pace and finish time.
Does walking really make me faster overall?
Often, yes — for longer efforts. By inserting walk breaks before fatigue sets in, you preserve energy and form, so you avoid the steep slowdown that comes from running to exhaustion. For a hard 5K you may run continuously, but for a marathon many runners finish quicker with run-walk.
How do I enter my paces?
Enter your running pace and your walking pace as minutes and seconds per mile or kilometre, matching the unit toggle on the distance field. Typical walking paces are 15:00–20:00 per mile; running paces vary widely by runner.
How is the blended pace calculated?
It is the total time of one run-walk cycle divided by the total distance that cycle covers — a time-weighted average of your run and walk segments. The projected finish multiplies that blended pace by your race distance.
Can I use this for a marathon or half marathon?
Yes. Set the distance to your event, choose your intervals and paces, and the calculator projects your finish time. Run-walk is especially popular for the half marathon and marathon, where conserving energy early pays off most.
Results are a mathematical projection from the intervals and paces you enter, assuming you hold them consistently. Real efforts drift with fatigue and terrain. General information for training, not medical or coaching advice.