Amada began practicing boxing as a teenager while attending Maebashi Ikuei High School, and won the national junior championship prior to graduation. He then attended Chuo University and served as captain of the school’s boxing club, all the while competing at the amateur level. In 1996, he won the All Japan Amateur Boxing Championships.
Amada remained with K-1 for the better part of three years following 2004, earning a victory over future world champion Freddy Kemayo in the process. However, the company suspended him following a 2007 incident wherein Amada allegedly assaulted a truck driver following a traffic incident in Tokyo. His last match for the organization prior to departure was a losing effort to Paul Slowinski at K-1 World Grand Prix 2007 in Amsterdam. For the remainder of his career, Amada competed for a variety of organizations but found the most success in HEAT, a fledgling promotion which held all its matches in an octagonal cage. He entered a tournament to crown the company’s first heavyweight kickboxing champion, and eventually emerged victorious with a KO win over Makoto Uehara at HEAT 10 on July 18, 2009. Amada reigned as champion for over 20 months, successfully defending his title twice before losing it at HEAT 22 to Fabiano Aoki. Amada consequently departed from HEAT and only fought for the company once more, unsuccessfully challenging Prince Ali for his old championship at HEAT 36. Continuing in journeyman fashion, Amada competed for only one more title: the RISE Heavyweight Championship on April 29, 2014. Despite being 40 years old at the time – over a decade older than his opponent, Kengo Shimizu – Amada surprised the audience by being the more aggressive fighter, pushing in close with his signature boxing offense. By the third round, Shimizu’s visible exhaustion contrasted with Amada’s apparent vigor. Nevertheless, the younger champion landed a surprise kick to Amada’s head which sent the challenger to the canvas and cost him the match. Amada fought his last match to date on September 18, 2016 at the New Japan Kickboxing Association’s Titans Neo 20 event, achieving a unanimous decision victory over Mauro Herrera.
Personal life
From 2005 to 2007, in addition to his kickboxing career, Amada worked for a real estate company. His contract was canceled when the firm declared bankruptcy. He has a wife who shares his first name; both are called Hiromi Amada. He also has a daughter and twin sons. While a senior at Chuo University, he shared a dorm with basketball playerKenichi Sako. In 2019, Amada was arrested in Aomori City for violating city ordinances.
Titles
Kickboxing
2009 HEAT Heavyweight Kickboxing Champion
K-1 Beast 2004 in Shizuoka Champion
Amateur boxing
1996 All Japan Amateur Boxing Champion
1996 National Athletic Meet at Fukushima Amateur Boxing Champion