Kickboxing
MASATO
1997–2009
No free-licensed photo available.

Masato

“Silver Wolf”
Born Masato Kobayashi

The Charisma of MAX, champion in 2003 and 2008

Tale of the tape
Born
March 10, 1979, Kashiwa, Chiba, Japan
Nationality
Japan
Height
174 cm (5′9″)
Style
Combination puncher-kicker
Weight
Welterweight
Active
1997–2009
Status
Retired · age 47

The record

55
Wins
6
Losses
2
Draws
25
Wins by KO/TKO
Won by KO/TKO 25Other wins 30Losses 6Draws / no contests 263 fights, 87% won, 45% of wins by finish

Wikipedia infobox (63 bouts); no second source with a complete record was found.

The story

Masato Kobayashi, known simply as Masato, became the home star of K-1's 70 kg MAX series. From Kashiwa in Chiba, he won the AJKF welterweight title in 1999 and an ISKA world title in 2000, before K-1 MAX began. After losing to Albert Kraus in the 2002 semifinal, he knocked Kraus out with a left hook in the 2003 final to become world champion. He reached two more finals, losing to Buakaw Por. Pramuk in 2004 and Andy Souwer in 2007, then won a second title in 2008 by beating Yoshihiro Sato and Artur Kyshenko in extra rounds on the same night. He retired after outpointing Souwer on New Year's Eve 2009, and in 2012 briefly served as executive producer of K-1 Global.

Signature weapons

Tap a technique with an arrow to learn how it works.

Titles
  • K-1 World MAX champion (2003, 2008)
  • K-1 World MAX runner-up (2004, 2007)
  • K-1 World MAX Japan tournament champion (2002, 2003)
  • ISKA oriental rules world welterweight champion (2000)
  • AJKF welterweight champion (1999)

Defining fights

  1. 2003WIN
    vs Albert Kraus (KO 2, left hook, K-1 World MAX final)
  2. 2004LOSS
    vs Buakaw Por. Pramuk (extra-round decision, K-1 World MAX final)
  3. 2007WIN
    vs Buakaw Por. Pramuk (unanimous decision, K-1 World MAX finals)
  4. 2008WIN
    vs Artur Kyshenko (extra-round decision, K-1 World MAX final)
  5. 2009WIN
    vs Andy Souwer (unanimous decision, retirement fight)
Steal this

Copy Masato's body-head combinations: jab to the body, then a left hook to the head, so the opponent's elbows drop just as the hook arrives.

More Kickboxing legends

Facts checked September 2026 against en.wikipedia.org and sherdog.com. The Hall of Fame is editorial; it doesn't imply Masato endorses Satori Fight Club.