My Mile

How My Mile saves your running records

My Mile saves an entry when you choose Save record, with the date, title and notes you’ve supplied. On a calculator, Save to My Mile opens a preview of the current result and keeps the inputs and units beside it, while Add completed activity lets you enter a distance and time you already recorded.

1. Calculate a valid result on a running tool, or add a completed activity in this record book.
2. Check the title, date and record type. Add notes about the route, conditions or purpose of the calculation.
3. Choose Save record, then return to My Mile to review the entry or download a backup.

A calculator entry keeps its saved result even if you change the tool afterward. For instance, a treadmill plan saved at 6 mph remains a 6 mph plan when you try a faster belt setting later, with the saved inputs showing which setting produced it.

Also, two entries can have different dates when you’re planning separate workouts from the same calculation, because the record date describes the activity or plan rather than the day you pressed Save.

Save results from all your running tools

All running tools can save useful results to My Mile, with a label that tells you what the entry represents. A completed activity describes something you did, while a plan gives you a target, a workout details intervals and recoveries, an analysis evaluates split pacing, and an estimate records a modeled prediction, with conversions available as references alongside them.

For example, you can keep a result from the Race Time Predictor while leaving your actual race result in a separate completed-activity entry. The prediction remains an estimate after saving and is kept out of your completed-activity distance totals.

Also, a saved pace conversion can be useful when a workout uses different units from your watch. The record keeps both the entered units and the equivalent results, so there’s no need to remember which direction you converted.

Keep a backup before changing browsers or domains

Your records stay in this browser profile for this website, and a JSON backup lets you move them elsewhere without an account or automatic cloud sync.

As MDN explains for browser local storage, saved data belongs to the site’s origin, and private-browsing data is cleared when the last private tab closes.

So, switching to another browser, device or website domain can show an empty record book even when the original records are still available elsewhere. Before making that change, download your JSON backup from the browser where the records are visible, then import it on the new site or device.

The JSON file keeps full records, including saved inputs, results, notes and entries in Recently deleted, while CSV gives you a spreadsheet summary of active records. During a JSON import, existing record IDs are kept as they are, and new records are added.

You need the JSON backup for restoring records.

My Mile allows up to 200 record slots, including deleted entries, with a separate storage-size limit that can be reached sooner by large result tables. If saving fails, the page shows an error instead of claiming the record was saved. Clearing site data can remove your records, so keeping a downloaded copy is part of using this record book.

Compare completed activities with consistent timing

The distance and combined pace at the top use completed activities only. For instance, a three-mile run in 26 minutes contributes three miles and 26 minutes to those totals. If that is the only completed activity, the pace shown is 8:40 per mile. A saved marathon prediction contributes nothing to those totals.

When there are several completed activities, the combined pace uses their total time divided by their total distance, so a long run carries more weight than a short run.

But this combined figure still brings different sessions together. For a closer comparison, you can review individual entries measured over the same distance.

For a mile time tracker, the most useful comparisons come from repeatable records: the same distance, a clear timing method and notes about relevant conditions. If one run includes traffic-light stops and another uses moving time, the pace figures describe different timing choices. You can note that difference before treating a faster number as an improvement.

Runs, walks and run-walk activities can all be logged, with the activity shown on each completed entry and separate labels for plans and estimates, so the filters can help you find the kind of record you want to review.

Keep your next result in My Mile

You can search by title, notes or saved result, filter by tool or record type, and sort by the activity date. Each entry has an Edit option for its title, date and notes. Manual activities also let you correct the recorded distance and duration.

Delete moves an entry to Recently deleted, where it can be restored with its saved details.

Permanent deletion is a separate choice, so you have time to check the record and keep a backup before removing it completely.

To start with a completed run, add its measured distance and time above. Or, use the Mile Pace Calculator to work out a result, then choose Save to My Mile when you want to keep it.