We're currently unable to reward best effort achievements on running activities but the best effort will appear as an "Estimated Best Effort" on your profile page. We hope to have this issue fixed soon but unfortunately, it won't be possible for us to generate a best effort achievement on that activity page.
You can follow this known issue for email updates on the issue.
Comments
This issue has been resolved. Please refer to the article below if you're not seeing best efforts on your activity page:
https://support.strava.com/hc/en-us/articles/216917127-Estimated-Best-Efforts-for-Running
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