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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. Chin-ups, 30 Minutes, Female - Current world record 1. Alicia Weber (USA) completed 445 chin-ups within 30 minutes on 10 August 2012 at Clermont, Florida.   Previous verified claims 1. Alicia Weber (USA) completed 399 chin-ups within 30 minutes on 23 September 2009 at Clermont, Florida. 2. Alicia Weber (USA) completed 297 chin-ups within 30 minutes on 19 December 2008 at Clermont, Florida.     The Book of Alternative records - World records, record breakers and more!