The record for being the youngest to tread water in the backward direction for 100 metres was set by Irish Chakarborty (born on March 22, 2025) of Pune, Maharashtra. He treaded water in the backward direction for 100 metres (4 laps) across the length of a swimming pool (measuring 25 metres x 21 metres) in 17 minutes at Ratnagiri Government Swimming Pool, Ratnagiri, Maharashtra, at the age of 1 year and 6 months, as confirmed on September 22, 2026.
