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25.05.2026 New claim submitted for Backwards Stair Climbing, 1 Hour 09.05.2026 New claim submitted for Mental Calculation, Division 09.05.2026 New claim submitted for Mental Calculation, Square Roots Keywords: (e.g football beer mat)	Listed below are the verified claims for the record listed. Sit-Ups, 1 Hour, Female - Current world record 1. Janhavi Mahadik (India) did 2007 sit-ups in 30 minutes at Regain Fitness Center in Airoli, Navi Mumbai, India on 14 June 2012.     The Book of Alternative records - World records, record breakers and more!