Saved on this device
Running log
Note each run’s date, distance and time. See your pace and weekly totals in kilometres and miles, and take it all with you as a CSV file.
Your data
Or drop a CSV file here.
Your log
Example week · 19–25 Oct 2026
29.8km
18.5 miles in 4 runs, 2:59:00 on your feet
This is an example week. Add your first run and it disappears.
| Week | Runs | Distance | Time | Average pace | Longest run |
|---|---|---|---|---|---|
| 19–25 Oct 2026 | 4 | 29.83 km18.53 mi | 2:59:00 | 6:00 /km9:39 /mi | 12.00 km7.46 mi |
| Date | Distance | Time | Pace |
|---|---|---|---|
| Sun 25 Oct 2026Long run, slow and chatty | 12.00 km7.46 mi | 1:15:36 | 6:18 /km10:08 /mi |
| Sat 24 Oct 2026Hilly loop | 4.83 km3.00 mi | 27:00 | 5:36 /km9:00 /mi |
| Thu 22 Oct 2026Steady, with 4 × 1 min faster | 8.00 km4.97 mi | 46:24 | 5:48 /km9:20 /mi |
| Tue 20 Oct 2026Easy run | 5.00 km3.11 mi | 30:00 | 6:00 /km9:39 /mi |
How the log works
Add a run with its date, distance and time; the log works out the pace per km and per mile. Runs are kept in your browser’s local storage on this device, so there is no account and nothing is uploaded. Clearing your browser data, or using a private window, removes them, so export a CSV now and then as a backup.
Weekly totals run Monday to Sunday and add up runs typed in either unit, shown in both kilometres and miles.
Building up your weekly distance
You will often hear the “10% rule”: add no more than 10% a week. The evidence for it is mixed. In a randomised trial of 532 novice runners training for a 4-mile (6.7 km) event, a 13-week programme built on it had about the same injury rate as an 8-week one (20.8% against 20.3%). Treat it as a rough guide, and let how your body feels count too.
Sources
- The 10% rule trial: Buist I, Bredeweg SW, van Mechelen W, Lemmink KAPM, Pepping GJ, Diercks RL. No effect of a graded training program on the number of running-related injuries in novice runners: a randomized controlled trial. American Journal of Sports Medicine 36(1), 33–39 (2008).
- 1 mile = 1.609 344 km: NIST Guide to the SI (Special Publication 811), Appendix B.8.
Questions
Where are my runs saved?
In this browser’s local storage, under the name runpebble-log. They never leave your device unless you export them.
Can I open the CSV in a spreadsheet?
Yes. Each row has the date, distance, unit and time you typed, the distance in km and miles, both paces and your note. Importing the file restores the log exactly, and runs already in it are skipped.
Can I move my log to another device?
Export a CSV here, open this page on the other device and import the file there.