On very rare occasions, the internal clock of your sensor may experience a bug. This can result in running sessions being recorded with a date far in the future or past.

We’re actively tracking this issue and working on a fix. In the meantime, here’s a quick workaround to help you avoid incorrect dates for your sessions:

✅ Temporary Fix

1. Remove the battery from the sensor
   This resets the internal clock. Follow our step-by-step guide here:
   👉 Battery Replacement

2. Ensure that the date and time on your phone is correct!
   

3. Sync the sensor with your phone before starting a new session
   This ensures the correct date and time is set on the sensor.

4. Planning a phone-free run?
   Make sure to disconnect the sensor from the app first.
   👉 Check out how: Going for a run

💬 Need to Fix a Past Session?

If you’ve already completed a run and the date is incorrect:

📧 Email us at support@ontracx.com
Please include:

• The actual date of the running session

• Any other relevant info

We’ll manually update the session so it appears in the correct week.