2018 - Monterey, California
Dan Huh and Allen Liu
2016 - Seoul, Korea
Noo Li Jeon and Dong-Pyo Kim
2013 - Marina del Rey, California
Ellis Meng
2011 - Lucerne, Switzerland
Olivier Guenat
2009 - Québec City, Canada
Sylvain Martel
2006 - Okinawa, Japan
Teruo Fujii
2005 - Hawaii, USA
Robert Keynton and Teruo Fujii
2002 - Madison, WI, USA
David Beebe and Andre Dittmar
2000 - Lyon, France
Andre Dittmar and David Beebe