| 05.1902 (KA) - before 1927 (HB) | Iwatomo[11] Daigoro | M4 Hibikiya Yoshitaro | Tomozuna | None | |
| before 1927 (HB) - 03.09.1930 (PA) | Iwatomo[11] Daigoro | M4 Hibikiya Yoshitaro | Iwatomo | None | |
| 04.09.1930 (OO) - after 05.1937 (OO) | Iwatomo | vacant | | | M4 Hibikiya Yoshitaro |
| after 05.1937 (KA) - 19.02.1938 (PA) | Iwatomo[12] Haruhiko | GY Kimura Tamanosuke10 | | None | |
| 20.02.1938 (OO) - after 05.1939 (OO) | Iwatomo | vacant | | | GY Kimura Tamanosuke10 |
| after 05.1939 (KC) - 12.1942 (KC) | Iwatomo[13] Seikichi | M4 Imizugawa Seikichi | Takasago | None | |
| 01.1943 (OO) - after 01.1943 (OO) | Iwatomo | vacant | | | M4 Imizugawa Seikichi |
| after 01.1943 (KC) - 10.1946 (KC) | Iwatomo[14] Hachiroemon | M1 Katsuragawa Shichiro | Isegahama | None | |
| 11.1946 (OO) - after 06.1947 (OO) | Iwatomo | vacant | | | M1 Katsuragawa Shichiro |
| after 06.1947 (KA) - 27.01.1978 (RM) | Iwatomo[15] Yoshiyuki# | M4 Jintozan Chuya | Kasugano | Dewanoumi | |
| 28.01.1978 (OO) - 24.11.1979 (OO) | Iwatomo | vacant | | | M4 Jintozan Chuya |
| 25.11.1979 (KA) - 01.10.2012 (RM) | Iwatomo[16] Yoshihiro | M7 Tochiisami Yoshiharu | Kasugano | Dewanoumi | |
| 02.10.2012 (OO) - 08.04.2013 (OO) | Iwatomo | vacant | | | M7 Tochiisami Yoshiharu |
| 09.04.2013 (KC) - 16.12.2013 (KC) | Iwatomo[17] Ryusui | M6 Kinkaiyama Ryu | Dewanoumi | Dewanoumi | M7 Tochiisami Yoshiharu |
| 17.12.2013 (OO) - 23.12.2013 (CO) | Iwatomo | vacant | | | M7 Tochiisami Yoshiharu |
| 24.12.2013 (CO) - 25.01.2014 (OO) | Iwatomo | vacant | | | M7 Kimurayama Mamoru |
| 26.01.2014 (KA) - | Iwatomo[18] Mamoru | M7 Kimurayama Mamoru | Kasugano | Dewanoumi | |