List of K-1 champions
K-1 World MAX Champions

Date
Champion
Nationality
Event
Location
Runner-up
Nationality
2014-10-11
Enriko Kehl
Germany Germany
K-1 World MAX 2014 Final
Pattaya, Thailand
Buakaw Banchamek
Thailand Thailand
2012-12-15
Murthel Groenhart
Netherlands Netherlands
K-1 World MAX 2012 Final
Athens, Greece
Artur Kyshenko
Ukraine Ukraine
2010-11-08
Giorgio Petrosyan
Italy Italy
K-1 World MAX 2010 Final
Tokyo, Japan
Yoshihiro Sato
Japan Japan
2009-10-26
Giorgio Petrosyan
Italy Italy
K-1 World MAX 2009 Final
Yokohama, Japan
Andy Souwer
Netherlands Netherlands
2008-10-01
Masato
Japan Japan
K-1 World MAX 2008 Final
Tokyo, Japan
Artur Kyshenko
Ukraine Ukraine
2007-10-03
Andy Souwer
Netherlands Netherlands
K-1 World MAX 2007 Final
Tokyo, Japan
Masato
Japan Japan
2006-06-30
Buakaw Por. Pramuk
Thailand Thailand
K-1 World MAX 2006 Final
Yokohama, Japan
Andy Souwer
Netherlands Netherlands
2005-07-20
Andy Souwer
Netherlands Netherlands
K-1 World MAX 2005 Final
Yokohama, Japan
Buakaw Por. Pramuk
Thailand Thailand
2004-07-07
Buakaw Por. Pramuk
Thailand Thailand
K-1 World MAX 2004 Final
Tokyo, Japan
Masato
Japan Japan
2003-07-05
Masato
Japan Japan
K-1 World MAX 2003 Final
Saitama, Japan
Albert Kraus
Netherlands Netherlands
2002-05-11
Albert Kraus
Netherlands Netherlands
K-1 World MAX 2002 Final
Tokyo, Japan
Kaolan Kaovichit
Thailand Thailand

Question: What competitor with one name won two K-1 World MAX Championships, and which years did he win?
Answer: Masato was the world champion of K-1 WORLD MAX, in 2003 and 2008.