Why This Site Was Made

Run/walk planning should be easy to test without needing a spreadsheet, a complicated app, or a bunch of assumptions.

I really enjoy the run/walk combination, and I wanted a simple way to compare run/walk strategies quickly. Change the run interval, walk interval, run pace, or walk pace, and the calculator shows how those choices affect common race distances.

The basic problem

Run/walk pacing sounds simple, but the math can get confusing. Overall pace is not always the simple average of the run pace and walk pace. If you run and walk for the same amount of time, the faster running segment covers more distance than the slower walking segment, which changes the final average pace.

That is why a calculator helps. It lets you test the actual pattern instead of guessing.

What the calculator is meant to do

The goal is to make it easy to experiment. You can test time-based intervals, distance-based intervals, miles, kilometers, extra stop time, and terrain adjustments. The output gives estimated finish time, average pace, run time, walk time, and the number of run/walk cycles.

What it is not

This is not coaching advice, and it is not a guarantee. Real-world results can change because of hills, weather, terrain, fatigue, stops, fueling, injuries, and how the day goes. The calculator is best used as a planning and comparison tool.

Simple inputs, clear projections

Try 5:5, 7:3, 3:1, 1:1, or any pattern you are curious about. Change the walk pace. Add stop time. Switch between miles and kilometers. The point is to see how small changes affect the overall projection.