| 2001： | |
| October | Held our first amateur baseball game at Osaka Dome |
| December | Established the Amateur Baseball Ashinaga Foundation |
| 2002： | |
| April | Held first game at Nagoya Dome |
| September | Held first game at Fukuoka Dome |
| 2003： | |
| February | Held first game at Sapporo Dome |
| March | Held first dome tournament at Osaka Dome |
| April | Held first game at Tokyo Dome |
| November | Held first national game at Hanshin Koshien Baseball Stadium
Representative teams from Sapporo, Tokyo and Osaka Domes
The first place in Japan was Kameoka municipal office from Osaka Dome |
| December | Renamed the tournament as “KUSA1” |
| 2004： | |
| January | First joint hosted KUSA1 with Osaka City Dome Corp. |
| March | The website was developed
The Tokyo Dome game was held in cooperation with Tokyo Dome Corp. |
| April | Became a sponsor of “Kusa Yakyu No Mado” |
| November | Held Kusa1 Japan Series 2004 at Hanshin Koshien Baseball Stadium
Hirakara Ebisu from Osaka Dome won the Japanese championship of Kusa1 |
| 2005： | |
| April | Cooperated in the development of baseball field at Saigon South School in Ho Chi Minh City, Vietnam |
| June | Became a sponsor of Baseball Federation of Asia |
| August | Met with Myanmar International Team and donated baseball goods. |
| November | Held Kusa1 Japan Series 2005 at Hanshin Koshien Baseball Stadium.
J Club from Tokyo Dome won the Japanese championship |
| 2006： | |
| March | Manner Improvement Campaign was launched |
| July | The business of Kusa1 Boys and Girls Opening Ceremony was launched |
| November | Held Kusa1 Japan Series 2006 at Hanshin Koshien Baseball Stadium
Marvelous from Tokyo Dome won the Japanese championship |
| 2007： | |
| June | The English page website was developed |
| December | Held Kusa1 Japan Series 2007 at Sapporo Dome
Windows from Tokyo Dome won the Japanese championship |
| 2008： | |
| November | The approach of the global environment consideration is begun |
| October | Held Kusa1 Japan Series 2008 at Nagoya Dome Ryusyouin from Tokyo Dome won the Japanese championship |
| December | Held first game at Jingu Stadium |
| 2009： | |
| February | The secretariat moves from Hirakata City to Osaka City Chuo Ward |
| September | Held first game at Seattle Safeco fielda (major league baseball stadium) |
| October | Met with Columbia Team and contribute. |
| December | Held Kusa1 Japan Series 2009 at Fukuoka Yahoo Dome
Dreem Sapporo from Sapporo Dome won the Japanese championship |
| December | Held first game at Seibu Dome |
| 2010： | |
| October | Make an inspection of Kurinoki farm and stadium in Hokkaido Kuriyama Town. |
| December | Held Kusa1 Japan Series 2010 at Hanshin Koshien Baseball Stadium.
Sapporo from Sapporo Dome ,
BRIGS from Kyosera Dome Osaka ,
Team.T.O from Sapporo Dome and
Sraggers from Kyosera Dome Osaka won the Japanese championship. |
| December | Make an inspection of Temmu stadium in Taiwan Taitei City. |
| 2011： | |
| January | Met with Sri Lanka ameture baseball/softball association coordinator in Japan. |
| December | Held Kusa1 Japan Series 2011 at Hanshin Koshien Baseball Stadium.
BM Knights from Tokyo Dome , Team Is-L from Kyosera Dome Osaka won the Japanese championship. |
| 2012： | |
| April | The desk of secretariat puts in Sendai City |
| December | Held Kusa1 Japan Series 2012 at Hanshin Koshien Baseball Stadium.Jasty from Wakayama Prefecture won the Japanese championship. |
| 2013： | |
| October | facebook starts |
| November | Held Kusa1 Japan Series 2013 at Hanshin Koshien Baseball Stadium.
Shinden Clib from Osaka Prefecture, N-mec East Japan Co.,Ltd. from Niigata Prefecture won the Japanese championship. |
| 2014： | |
| September | Met with people concerned in San Francisco at Consulate. |
| November | Kusa1 Japan Series 2014 at Hanshin Koshien Baseball Stadium became the rainout
We will hold it in the next year. |
| 2015： | |
| October | Held the international game with the American team,Kusa1 World Cup for the first time in Tokyo Dome |
| November | Held Kusa1 Japan Series 2014 at Hanshin Koshien Baseball Stadium.
Kouseiren Takaoka Hospital from Toyama Prefecture won the Japanese championship. |
| November | Held Kusa1 Japan Series 2015 at Hanshin Koshien Baseball Stadium.
GOLD from Chiba Prefecture won the Japanese championship. |
| 2016： | |
| May | Held the international game with the Taiwan team,Kusa1 World Cup for the first time in Tokyo Dome. |
| October | Make an inspection of Taiwanese Highschool baseball Tournament in Taichung City. |
| November | Held Kusa1 Japan Series 2016 at Hanshin Koshien Baseball Stadium.
Eight from Tokyo won the Japanese championship. |
| 2017： | |
| January | Participate the Seattle Mariners Fantasy Camps in Mesa Arizona. |
| August | Bigin donation to junior high school team in Sri Lanka. |
| December | Held Kusa1 Japan Series 2017 at Hanshin Koshien Baseball Stadium
GOLD from Chiba Prefecture the second won the Japanese championship. |
| 2018： | |
| April | Held first game at Taichung Intercontinental Baseball Stadium in Taiwan. |
| May | The desk of secretariat moves from Sendai City to Tokyo Shijuku Ward. |
| September | Held first game at Yokoyama Stadium. |
| December | Held Kusa1 Japan Series 2018 at Hanshin Koshien Baseball Stadium.
Edogawa Express from Tokyo won the Japanese championship. |
| 2019： | |
| July | Participate Field of Dreams Ballgame Event in Dyersville Iowa. |
| August | Baseball Stadium inspection. St. Louis, Chicago, Detroit, Cleveland, Pittsburgh, Cincinnati, and Milwaukee. |
| September | Held the international game with the American team,Kusa1 World Cup in Yokohama Olympic Stadium. |
| 2020： | |
| September | We worked on prevention of infection spread of COVID-19 |
| December | Held Kusa1 Japan Series 2020 at Osaka-dome Stadium.
Big Dipper from Tokyo the second won the Japanese championship. |
| 2021： | |
| December | Held Kusa1 Japan Series 2021 at Hanshin Koshien Baseball Stadium.
Risky from Tokushima won the Japanese championship. |
| December | The website was developed support a smartphone. |
| 2022： | |
| August | “KUSA1” trademark registration in Japan Patent Office. |
| June | Instagram starts |
| December | Held Kusa1 Japan Series 2022 at Hanshin Koshien Baseball Stadium.
Ikaruga Tigers from Nara won the Japanese championship. |
| 2023： | |
| August | Held the international game with the Taiwan team,Kusa1 World Cup for the first time in Kyocera Dome Osaka. |
| September | Held the international game with the Korea team,Kusa1 World Cup for the first time in Tokyo Dome. |
| December | Held Kusa1 Japan Series 2023 at Hanshin Koshien Baseball Stadium.
Champion from Tokushima and PHALANX from Osaka won the Japanese championship. |
| 2024： | |
| August | Hanshin Koshien Stadium 100th anniversary, we made the Kusa1 Japan Series championship flag. |
| September | Held the international game with the Taiwan team,Kusa1 World Cup for the first time in MIZUHO PayPay Dome FUKUOKA. |
| November | Angel Stadium of Anaheim Ballgame Event in Anaheim California. |
| November | Held Kusa1 Japan Series 2024 at Hanshin Koshien Baseball Stadium.
LBP headquarters from Hyogo won the Japanese championship. |
| 2025： | |
| August | Held Memorial game for “Mr. Baseball”Shigeo Nagashima at Tokyo Dome |
| November | Held Kusa1 Japan Series 2025 at Hanshin Koshien Baseball Stadium.
Champion from Tokushima won the Japanese championship. |
