Hama joined sumo in July 1995, and he fought for the Hakkaku stable run by former yokozunaHokutoumi. His shikona was Hokutoarashi and he reached a highest rank of makushita 6 in November 2001. Injury-prone in his knees, he fell greatly in rank and announced his retirement in May 2008. His career record was 235 wins to 169 losses, with 114 absences due to injury.
After retiring from sumo, Hama became a professional wrestler. Hama debuted in professional wrestling on November 3, 2008 losing to former Sumo champion Akebono. On September 23, 2009, Hama and Akebono, known collectively as SMOP, won the All Asia Tag Team Championship, defeating Minoru Suzuki and Nosawa Rongai. With Akebono as his partner, Hama participated in the 2009 World's Strongest Tag Determination League, finishing 5th out of 9 teams with four victories and four defeats. While still holding the All Asia Tag Team Championship, Hama won the Triple Crown Heavyweight Championship, defeating champion Satoshi Kojima on March 21, 2010. Hama holds the record for fastest superstar to attain the Triple Crown title, winning the title 503 days after his debut. In 2010, Hama was also part of Suwama's New Generation Force stable, which rivaled Minoru Suzuki and his Partisan Forces faction. After internal trouble in the group, Hama faced fellow member Masayuki Kono in a special match, but Kono defeated him thanks to the help of Kenso and Voodoo Murders, leading Kono to left New Generation Force and join them. The stable then dissolved, with Hama following Suwama while the other two remaining members, Manabu Soya and Seiya Sanada, went apart. Hama finished the 2010 Champion Carnival in 4th place in Block A. He totaled 4 points having defeated Minoru Suzuki and Seiya Sanada. Hama and Akebono ended up losing the All Asia Tag Team Championship at the hands of Voodoo Murders' TARU and Big Daddy Voodoo on April 29, 2010. Three days later, on May 2, 2010, he lost the Triple Crown Championship in a match against Minoru Suzuki. On June 19, 2013, Hama announced his resignation from All Japan out of loyalty to Keiji Mutoh, who had left the promotion when Nobuo Shiraishi took over as its new president at the beginning of the month.
In 2016, after an appearance in Pro Wrestling Zero1's Fire Festival, Hama signed up with Big Japan Pro Wrestling. There he reunited with Akebono and briefly re-formed SMOP, though he later formed another tag team named Hamakami with Hideyoshi Kamitani.
*BJW Tag Team Championship – with Hideyoshi Kamitani and Yasufumi Nakanoue
*Yokohama Shopping Street 6-Man Tag Team Championship – with Shogun Okamoto and Yasufumi Nakanoue, Yasufumi Nakanoue and Yoshihisa Uto, and Yasufumi Nakanoue and Takeshi Irei
*Saikyo Tag League – with Yasufumi Nakanoue
Pro Wrestling Illustrated
*PWI ranked him #24 of the top 500 singles wrestlers in the PWI 500 in 2010
Tokyo Sports
*Best Tag Team Award – with Akebono
*Newcomer Award
1This championship is not officially recognized by All Japan Pro Wrestling.