Most step ups in one minute with a 40 lb pack (male)

According to Official Guinness Records,

The most step ups in one minute with a 40 lb pack is 60 and was achieved by Ron Cooper (USA) at CrossFit Marblehead in Marblehead, Massachusetts, USA, on 2 December 2016. This was the fourth and final successful attempt by Ron which was broadcast live on Guinness World Records' Facebook page.

For a complete list of 2016 records, please visit 2016 Guinness Records in United States.

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