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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. Memory - Decimal digits - 1 Minute - Current world record 1. Dr. Gunther Karsten (Germany) was able to memorise 102 decimal digits within one minute. Afterwards, he recalled all these digits without a single error on 31 January 2007 at Grand Hyatt Hotel in Hongkong.     The Book of Alternative records - World records, record breakers and more!