Should I install the HDOR app on my phone and use it as a run tracker?

HDOR is NOT A RUNNING TRACKING application. HDOR is hosting OOTYULTRA 2021 virtual event and provides all the runners with the ability to link their running data. You must continue to record your run data through supported GPS-based watches or mobile-based applications and link them to the HDOR platform. View HDOR new users page to learn more about the supported applications.