- Thienna Ho
- 47552.9 kilogram(s)
- United States (San Francisco,St. Emydius Gym)
The heaviest sumo deadlift by a female in one hour is 47,552.9 kg (104,836 lb 3 oz), and was achieved by Thienna Ho (USA) at the St. Emydius Gym in San Francisco, California, USA, on 14 August 2010 Thienna lifted a 45.8 pound barbell for 2,289 repetitions. Amanda Mochan adjudicated.