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16.08.2017
New claim submitted for Backwards-Running, 100 km
09.08.2017
New claim submitted for Solving a Rubiks Cube Blindfolded
09.08.2017
New claim submitted for Solving Rubiks 4 x 4 x 4 cube

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Listed below are the verified claims for the record listed.

Backwards-Running, 100 km - Current world record
1. The fastest 100 km run backwards was completed by Ralf Klug (Germany) in 21:20:31 hours on 9-10 June 2016 in Bienne, Switzerland.

 
Previous verified claims
1. The fastest 100 km run backwards was completed by Hassan Kurt (Germany) in 21:34 hours on 11-12 June 2016 in Niederhöchstadt, Germany.
 
 
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