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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. 100 x 10000 m Relay - Current world record 1. 100 Runners from the Florida Striders Track Club (USA), ran a 100 x 5000 m relay in 37:12:53.66 hours on 10-12 December 2010 on the Dan Brown Track at Bishop John J. Snyder High School in Jacksonville, Florida, USA.     The Book of Alternative records - World records, record breakers and more!