The Championships, Wimbledon | World Figure Skating Championships | ICF Canoe Sprint World Championships | IAAF World Championships in Athletics | 2004 IAAF World Indoor Championships | Ice Hockey World Championships | World Gliding Championships | 2007 World Championships in Athletics | Men's major golf championships | FIS Nordic World Ski Championships | 2013 World Aquatics Championships | World Junior Figure Skating Championships | World Curling Championships | 2003 World Championships in Athletics | 2000 European Canoe Slalom Championships | 1999 ICF Canoe Slalom World Championships | International athletics championships and games | FIS Alpine World Ski Championships | FIL European Luge Championships | All England Open Badminton Championships | 2009 UCI Track Cycling World Championships | 1993 ICF Canoe Slalom World Championships | U.S. National Championships | Sengoku period | Bellator Fighting Championships | 2009 World Championships in Athletics | 2005 World Championships in Athletics | World Table Tennis Championships | European Figure Skating Championships | 2011 World Championships in Athletics |
Izumi made his mixed martial arts debut against New Zealand kickboxing specialist, Antz Nansen for Japan's Sengoku promotion in September 2009 after Izumi signed with World Victory Road.
Kang faced Shigeki Osawa on March 7, 2009 at Sengoku Raiden Championships 12.