Fixes to Coros and Polar


There’s been an ongoing issue with the Coros import which would cause the connection to fail after 30 days. Runs would continue to import, but the detailed information would not. This issue should now be resolved.

If you are experiencing this issue you will need to go to your Settings > Sync page and disconnect and then reauthorize Coros for the fix to take effect.

Note: Coros has recently instituted a change to its API preventing the import of runs older than 90 days. If you want to export data older than 90 days from Coros you will need to request an export by emailing  they will send you a ZIP file which you should be able to import directly into Smashrun. You can also export individual runs as FIT or GPX files and import them into Smashrun.


There’s been an ongoing issue where the details of some Polar historical imports are not showing up. This issue was patched this weekend, and where possible the historical data was corrected

If you’re having trouble getting your old Polar runs to show up correctly please reach out to and we’ll investigate.

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