Hi there! It seems like you're experiencing a discrepancy between the distance you ran and what the app is showing. Let's see if we can resolve this together.

First, can you confirm a few details for me?
1. Are you using the official TCS London Marathon app?
2. Did you start and stop the tracking feature at the beginning and end of your run?
3. Have you checked if your GPS settings on your device are enabled for the app?

These details can help us pinpoint the issue better!

yes i did all 3 points

Thank you for confirming those details! Since you've already started and stopped the tracking, and your GPS settings are enabled, we can try a few additional troubleshooting steps.

1. Check for App Updates: Make sure that the TCS London Marathon app is up to date. Sometimes, bugs in older versions can cause issues with distance tracking.

2. Restart the App: Close the app completely and then reopen it. This can refresh the app and might fix any temporary issues with tracking.

3. Calibration: If you have the option, try calibrating the app's tracking settings. This can sometimes help align the GPS readings with actual distance.

4. Phone Settings: Ensure that your phone's location settings are set to 'High Accuracy,' which utilizes GPS, Wi-Fi, and mobile networks for precise location tracking.

If the issue persists even after trying these steps, it may be worthwhile to contact the app's support directly at [email protected] for further assistance. They might be able to look into your account and data for more specifics.

Let me know how it goes! Are you satisfied with the solution I provided?