Known for his good boxing skills and aggressive fighting style, he began his career as a featherweight, winning the WBC Muaythai International Featherweight Championship before dropping down to bantamweight and having even more success by taking the WBC Muaythai national title and the IKKC International Super Bantamweight belt.
[4][5] Early in his career, Adanza outpointed future American great Kevin Ross at featherweight in Las Vegas, Nevada, on March 25, 2005.
[8] Fujiwara struck Adanza with elbows throughout the fight, causing cuts on his head and forcing the referee to stop the bout in round four.
[20][21] In Manila, Philippines on June 26, 2011, he defeated Huang Hai Gong by unanimous decision to win the WBC Muaythai International Featherweight (-57.153 kg/126 lb) belt.
[22][23] He was set to face Damien Trainor in Primm, Nevada on August 20, 2011[24] but was forced to pull out of the fight due to a hip injury sustained in his bout with Huang.
[28][29][30] At Korakuen Hall in Tokyo, Japan, on February 18, 2012, he beat Tomonori Sato via TKO due to a cut in the second round to win the WBC Muaythai International Super Flyweight (-52.163 kg/115 lb) Championship.
[35] Following this, Adanza signed a contract with historic kickboxing promotion K-1 and was initially slated to debut inside the organization with a second bout with Andy Howson at the K-1 World Grand Prix 2012 in Los Angeles on September 8, 2012.
[40] He challenged Jomhod Eminent Air for the WBC Super Flyweight (55.338 kg/ 122 lb) world title at M-One: Reborn in Highland, California, on May 16, 2013, and lost via TKO due to a cut in round one.