The record for being the fastest child to complete a 5 km Marathon was set by Arnav Kumar (born on June 16, 2014) of Meerut, Uttar Pradesh. He completed the 6th ‘Hindustan Half-Marathon’ on March 1, 2020, in 21 minutes and 57 seconds at the young age of 5 years, 8 months, and 15 days, as confirmed on March 14, 2020.
