If the online registration is closed:
After the registration closes, you cannot change your PR yourself (since the organization may have already printed the startlists). I advise you to contact the organization itself. The email address can usually be found on the race details page.
If the online registration is still open:
- Log in to Athletics.app, with the account you used to register.
- Go to "My Profile"
- There you will see the overview of all your registrations, click on "Edit" to edit the registration. There you can then edit/add your entered PRs.
This has been automatically translated into English