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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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Stair Climbing, 6 Hours with 30 kg Backpack - Current world record
1. Carrying a backpack weighting 30 kg, Michael Griesmeier (Germany) ran up and down the 73 stairs of the Buddhist House in Berlin, Germany 137 times on 10 September 2011. The vertical height climbed in 6 hours was 1613 metres.

 
 
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