Head-to-head · 23 bouts
Hasegawa Katsuhiro and Ryuko Seiho have met 23 times in recorded sumo. Hasegawa Katsuhiro leads 13–10.
Hasegawa Katsuhiro has won with: thrust down (5), slap down (3), frontal force out (1), frontal lift out (1), frontal push out (1).
Ryuko Seiho has won with: frontal push out (2), frontal force out (2), over arm throw (1), frontal thrust out (1), the fishermans throw (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| March 1968 | Day 8 | Ryuko Seiho | Over arm throw | Maegashira 9 West vs Maegashira 4 West |
| May 1968 | Day 8 | Hasegawa Katsuhiro | Frontal force out | Maegashira 2 East vs Maegashira 3 East |
| July 1968 | Day 13 | Hasegawa Katsuhiro | Frontal lift out | Maegashira 9 West vs Maegashira 1 West |
| November 1968 | Day 10 | Hasegawa Katsuhiro | Thrust down | Maegashira 1 East vs Maegashira 6 East |
| January 1969 | Day 2 | Hasegawa Katsuhiro | Thrust down | Maegashira 3 East vs Sekiwake 1 West |
| March 1969 | Day 15 | Hasegawa Katsuhiro | Slap down | Sekiwake 1 East vs Maegashira 9 West |
| May 1969 | Day 4 | Hasegawa Katsuhiro | Thrust down | Sekiwake 1 East vs Maegashira 2 East |
| July 1969 | Day 6 | Hasegawa Katsuhiro | Thrust down | Sekiwake 1 East vs Maegashira 1 East |
| September 1969 | Day 1 | Ryuko Seiho | Frontal push out | Sekiwake 1 East vs Maegashira 1 East |
| November 1969 | Day 15 | Ryuko Seiho | Frontal thrust out | Maegashira 6 West vs Sekiwake 1 West |
| January 1970 | Day 1 | Ryuko Seiho | The fishermans throw | Maegashira 1 West vs Sekiwake 1 West |
| March 1970 | Day 6 | Ryuko Seiho | Slap down | Sekiwake 2 East vs Komusubi 1 West |
| May 1970 | Day 3 | Hasegawa Katsuhiro | Frontal push out | Komusubi 1 East vs Maegashira 2 East |
| September 1970 | Day 13 | Ryuko Seiho | Frontal crush out | Komusubi 1 East vs Maegashira 11 East |
| November 1970 | Day 15 | Hasegawa Katsuhiro | Slap down | Komusubi 1 East vs Maegashira 2 West |
| January 1971 | Day 12 | Ryuko Seiho | Outside leg trip | Maegashira 1 East vs Sekiwake 1 West |
| March 1971 | Day 15 | Hasegawa Katsuhiro | Slap down | Maegashira 2 West vs Maegashira 1 West |
| May 1971 | Day 15 | Ryuko Seiho | Frontal force out | Maegashira 2 West vs Sekiwake 1 West |
| July 1971 | Day 12 | Ryuko Seiho | Frontal push out | Sekiwake 1 East vs Maegashira 6 East |
| September 1971 | Day 9 | Hasegawa Katsuhiro | Hand pull down | Sekiwake 1 East vs Maegashira 1 West |
| May 1974 | Day 13 | Ryuko Seiho | Frontal force out | Maegashira 3 East vs Komusubi 1 West |
| July 1974 | Day 1 | Hasegawa Katsuhiro | Outside leg trip | Maegashira 5 East vs Maegashira 4 West |
| January 1975 | Day 8 | Hasegawa Katsuhiro | Thrust down | Maegashira 5 West vs Komusubi 1 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.