Half Marathon Pace Chart

This half marathon pace chart helps you see the exact rhythm you need to reach your goal time. Instead of doing math on the run, you can quickly look up your target and see the clock times you should expect at every major checkpoint.

By default, this is a running pace chart in km because that is how most half marathons in Tokyo are marked. If you prefer miles, you can switch units with one tap. You can also highlight your goal pace to keep your focus sharp and print a clean copy to review before the starting gun.

How your pace becomes your finish time

checkpoint time = pace per km × distance

Your split times are simply your running pace multiplied by the distance you have covered. If you settle into a 5:30 per kilometer rhythm, 10 kilometers will take you exactly 55:00. The full half marathon distance of 21.0975 km at that same pace brings you across the line in 1:56:02. This chart does all that calculation for you.

How to use this chart

If you already have a finish time in mind, scan the right side of the chart until you spot it. Then, look left to see the per-kilometer pace you need to maintain. If you prefer to run by feel, find your comfortable pace in the left column and read right to see what finish time that effort will earn you.

Typing your goal into the highlight box keeps your row marked as you scroll. This is especially helpful if you want to compare your main goal with a backup plan.

Keep in mind that this chart assumes you will run the exact same pace from start to finish. If you want a more detailed plan that includes options like starting slow and speeding up later, check out our half marathon pace calculator.

Running a half marathon in Tokyo

If you are racing a half marathon in Tokyo, the weather will play a big part in your pacing. The Tokyo Legacy Half Marathon runs in October, where mornings are usually crisp but can sometimes still hold onto late summer humidity. Adjust your expectations if race day feels unusually warm.

For your training runs, the Imperial Palace loop is incredibly useful. It is exactly 5 kilometers long. Running four steady loops plus a little extra is very close to half marathon distance. Trying a few controlled loops at the pace you see on this chart is a great way to test your fitness before race day.

If you want to practice your goal pace with other runners, our free weekly email lists group runs happening all over Tokyo. You can also browse our club directory to find a local community that trains at your exact speed.