After the Athens Olympics, he moved to Stanford University to complete a degree in Geotechnical Engineering and Hydrology and continue his rowing career there under Coach Craig Amerkhanian.

He won the gold medal at the 2002, 2003 and 2007 world championships for Canada's men's eight team in Seville, Spain, Milan, Italy and Munich, Germany respectively.

[8] He won a gold medal at the 2008 Summer Olympics in the men's eights with Andrew Byrnes, Kyle Hamilton, Malcolm Howard, Kevin Light, Ben Rutledge, Dominic Seiterle, Jake Wetzel and cox Brian Price.

[10] On 23 January 2013, Kreek set off with three other rowers, Markus Pukonen, Jordan Hanssen and Pat Fleming to attempt the first-ever row from mainland Africa to North America, recording it for classroom lessons in schools across the United States and Canada.

A computer program developed at the University of Victoria monitored the crew's activities and ensured they followed a strict schedule that maximized their energy and mental sharpness.