Jean-Yves “ICEMAN” Theriault

23 Times World Champion

Jean-Yves “ICEMAN” Theriault

23 Times World Champion

Jean-Yves Thériault was born on January 15, 1955 in Paquetville, New Brunswick, Canada. He was the fifth of six sons.

Thériault began his martial arts training in 1972 at age 17, achieving blue belt status in Jujutsu before becoming interested in Muay Thai and Kickboxing few years later. He won his first kickboxing competition in 1976 after only six months of training under the direction of John Therien (who now holds Hanshi degree in Ju-Jitsu), and subsequently became Canadian middleweight kickboxing champion two and a half years later.

In 1980 he won the PKA Middleweight World title (Full-contact karate), and held the championship for a record of 15 years.
He has also won world titles in both the ISKA and PKC associations.

He was referred to as “The Iceman,” a nickname given to him by Rodney Batiste during his first title defence, due to his intimidating icy stare and cool demeanour in the ring.

Thériault has a number of high-profile victories, including two wins against future four-time K-1 champion Ernesto Hoost and a draw against the legendary Don “The Dragon” Wilson. He has also fought world champions such as Rob Kaman, Tosca Petridis and Rick Roufus.

Thériault has worked with many groups and charities, such as the Big Brothers, Children’s Wish Foundation, Laucan. He is author of a book on kickboxing techniques and has a series of videos on the science of combat sports. He is the subject of an hour and a half film produced by the National Film Board. He was voted Athlete of the Decade by the Sports Writers Association of New Brunswick. However, the New Brunswick Sports Hall of Fame still will not induct him into their ranks after several attempts by fans and friends.

Thériault has also become a world-class promoter for the sport of kickboxing.
With the aid of his friend Hanshi John Therien, he is giving new, young fighters the opportunity to realize their dreams in the “Iceman Amateur Kickboxing Circuit”.

Since his retirement on December 1, 1995, (a third-round knockout of Marcus Reid) Thériault still trains five days a week and teaches classes at Therien Ju-Jitsu & Kickboxing Schools.

Thériault obtained his Black Belt in Ju-Jitsu in early 2008.


  • 1995 I.S.K.A. Full Contact Light Heavyweight World Champion
  • 1992 I.S.K.A. Full Contact Super Middleweight World Champion Retains title after losing to Rob Kaman earlier that year – see fight record for more information. Rob Kaman didn t respect the rules of Full Contact and used his low kick to Theriault during the fight. After advertissement, J Yves Theriault can t continue the fight because he was pain on the legs. The victory of Kaman is not acceptable.
  • 1988 I.S.K.A. Full Contact Light Heavyweight World Champion
  • I.S.K.A. Full Contact Super Middleweight World Champion
  • P.K.C. Super Middleweight Full Contact World Champion
  • 1980-1995 P.K.A. Full Contact Middleweight World Champion
  • 1978 Canadian Full Contact Middleweight Kickboxing Champion

Professional kickboxing record

Thériault fought 76 fights from June 1976 to December 1995. Of those fights, 69 were wins (61 knockouts), 6 were losses, and 1 was a draw. The one draw was with Don “The Dragon” Wilson on December 18, 1984.

Thériault was full-contact World Champion 23 times.

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