| 18-May to 19-May-2019 | The 14th Kiyosatonomori Open | Open | B | $108 |
| 15-Dec to 16-Dec-2018 | The 18th Chubu Open | Open | B | $144 |
| 01-Dec to 02-Dec-2018 | The 32nd Kyushu Open | Open | B | $162 |
| 20-Oct to 21-Oct-2018 | The 18th Tohoku Open | Open | B | $90 |
| 16-Sep to 17-Sep-2018 | The 30th National Championship | Pro Masters 40+ | B | $90 |
| 23-Jun to 24-Jun-2018 | The 13th Masters National Championships | Pro Masters 40+ | B | $243 |
| 17-Sep to 18-Sep-2017 | The 29th National Championship | Masters | B | $160 |
| 05-Aug to 06-Aug-2017 | The 12th Michinoku Open | Open | B | $168 |
| 11-Feb to 12-Feb-2017 | 2017 Asia Open Supported by Innova Champion | Grandmasters | B | $328 |
| 10-Dec to 11-Dec-2016 | The 16th Chubu Open | Open | B | $96 |
| 08-Oct to 09-Oct-2016 | The 14th Tohoku Open | Open | B | $48 |
| 18-Sep to 19-Sep-2016 | The 28th National Championships | Masters | B | $88 |
| 27-Aug-2016 | Baskets & Barrels Open - Cencal Series, presented by Legacy Discs | Grandmasters | C | $168 |
| 18-Jun to 19-Jun-2016 | The 11th Masters Championships | Masters | B | $190 |
| 30-Apr to 01-May-2016 | The 18th Nippon Open | Masters | B | $72 |
| 19-Dec to 20-Dec-2015 | The 29th Kyushu Open | Open | B | $96 |
| 05-Dec to 06-Dec-2015 | The 15th Chubu Open | Open | B | $88 |
| 11-Oct to 12-Oct-2015 | The 15th Tohoku Open | Open | B | $50 |
| 22-Aug to 23-Aug-2015 | The 10th Michinoku Open | Open | B | $126 |
| 15-Aug to 16-Aug-2015 | 19th Annual Brent Hambrick Memorial Open | Senior Grandmasters | A | $200 |
| 25-Jul to 26-Jul-2015 | Puns Labyrinth IV | Senior Grandmasters | C | $78 |
| 13-Jun to 14-Jun-2015 | The 10th National Masters Championship | Masters | B | $122 |
| 04-May to 05-May-2015 | The 17th Nippon Open | Masters | B | $66 |
| 17-Jan to 18-Jan-2015 | 2015 Asia Open | Grandmasters | B | $316 |
| 06-Dec to 07-Dec-2014 | 28th Kyushu Open | Open | B | $132 |
| 12-Oct to 13-Oct-2014 | 14th Tohoku Open | Open | B | $60 |
| 01-Aug to 03-Aug-2014 | Fort Steilacoom Open | Senior Grandmasters | NT | $461 |
| 12-Jul to 13-Jul-2014 | National Masters Championship | Masters | B | $120 |
| 17-Aug to 18-Aug-2013 | 8th Michinoku Open | Open | B | $108 |
| 11-Aug-2013 | IOS #58 Indian Oaks Open | Grandmasters | C/B | $96 |
| 09-Mar to 10-Mar-2013 | 9th Kinki Open | Open | B | $180 |
| 02-Mar to 03-Mar-2013 | 15th Chu-Shikoku Open | Open | B | $72 |
| 07-Oct to 08-Oct-2012 | 12th Tohoku Open | Open | B | $60 |
| 18-Aug to 19-Aug-2012 | 7th Michinoku Open | Open | B | $101 |
| 19-May to 20-May-2012 | 7th Kiyosatonomori Open | Open | B | $72 |
| 10-Mar to 11-Mar-2012 | 8th Kinki Open | Open | B | $84 |
| 10-Dec to 11-Dec-2011 | 7th Masters Championships | Masters | B | $96 |
| 20-Aug to 21-Aug-2011 | 6th Michinoku Open - GDGT | Open | B | $120 |
| 19-Feb to 20-Feb-2011 | Asia Open | Grandmasters | B | $200 |
| 11-Dec to 12-Dec-2010 | 6th Masters Championships | Masters | B | $96 |
| 07-Aug to 08-Aug-2010 | 5th Michinoku Open | Open | B | $90 |
| 22-May to 23-May-2010 | 5th Kiyosatonomori Open | Open | B | $90 |
| 12-Dec to 13-Dec-2009 | 5th Masters Championships | Masters | B | $72 |
| 13-Jun to 14-Jun-2009 | 17th Tokai Open | Open | B | $54 |
| 10-Jan to 11-Jan-2009 | 7th Kanagawa Open | Open | B | $55 |
| 13-Dec to 14-Dec-2008 | 4th Masters Championships | Masters | B | $72 |
| 09-Aug to 10-Aug-2008 | 8th Tohoku Open | Open | B | $81 |
| 01-Dec to 02-Dec-2007 | 11th Kanto Open | Open | B | $81 |
| 20-Oct to 21-Oct-2007 | 7th Tohoku Open | Open | B | $45 |
| 13-Oct to 14-Oct-2007 | 3rd Masters Championships | Masters | B | $90 |
| 21-Jul to 22-Jul-2007 | 7th Aso Open | Open | B | $99 |
| 10-Mar to 11-Mar-2007 | 21st Kyushu Open | Open | B | $90 |
| 13-Jan to 14-Jan-2007 | 5th Kanagawa Open | Open | C | $90 |
| 02-Sep to 03-Sep-2006 | 6th Chubu Open | Open | C | $94 |
| 22-Oct to 23-Oct-2005 | 10th Kanto Open | Open | B | $131 |
| 19-Mar to 20-Mar-2005 | 11th Kansai Open | Open | C | $98 |
| 09-Oct to 10-Oct-2004 | Tohoku Open | Open | C | |
| 10-Jan to 11-Jan-2004 | Kyushu Open | Open | C | |
