National championships (Japan Curling Association records)
7 domestic events (1989–2011).
| Year | Event | Team | Result |
|---|---|---|---|
| 2011 | Japan Senior Curling Championships 2011 | チーム栃木 men | |
| 2004 | Japan Senior Curling Championships 2004 | チーム入山 men | Round robin 0–3 |
| 1994 | Japan Curling Championships 1994 | 日光59ERS men | |
| 1993 | Japan Curling Championships 1993 | 日光ビッグボーイズ選抜 men | |
| 1992 | Japan Curling Championships 1992 | 日光選抜 men | |
| 1991 | Japan Curling Championships 1991 | 日光選抜 men | |
| 1989 | Japan Curling Championships 1989 | 日光カーリングクラブ men |
Source: the event pages of the Japan Curling Association (team rosters and results). Matched by name, so a different person with the same name could be mixed in. Elementary and junior high school events are not listed.