Tanner Mackey of Pierson, Iowa, has officially beaten the Guinness World Record for the fastest 10k wearing a 20-pound vest. Mackey beat the current world record at the Mighty Mo Run in Sioux City on ...
PIERSON, Iowa (KTIV) - Tanner Mackey of Pierson, IA is setting out to beat the Guinness World Record for the fastest 10k wearing a 20-pound vest. Mackey started running with a weighted pack only a few ...
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