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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

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Listed below are the verified claims for the record listed.
Ultra speed memory - Decimal numbers - 3 seconds - Current world record
1. 25 Ramón Campayo (Spain) on on 21 June 2009 at the Impossibility Challengers Games in Dachau, Germany
 
 
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