Find out how to take on the TCS London Marathon for charity 

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Can I track a participant’s exact progress?

By adding a participant to your tracking list, you will see their progress using their chip time from crossing the event timing mats. Between mats, their position is estimated using their average speed. If the person you are tracking has downloaded the Official App powered by TCS and enabled GPS in their settings, you will be able to see a more accurate location for them.

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