Justin Thacker

2002

World Amateur Championships - IFBB, LightWeight, Did not place

2005

World Amateur Championships - IFBB, WelterWeight, Did not place

2009

World Amateur Championships - IFBB, Classic Short, 8th

2012

World Amateur Championships - IFBB, Classic Medium-Short, 3rd

2013

World Amateur Championships - IFBB, Classic Medium-Short, 2nd

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