Head-to-head · 16 bouts
Ryuko Seiho and Kitanofuji Katsuaki have met 16 times in recorded sumo. Kitanofuji Katsuaki leads 13–3.
Ryuko Seiho has won with: slap down (1), frontal thrust down (1), under shoulder swing down (1).
Kitanofuji Katsuaki has won with: frontal force out (4), slap down (3), over arm throw (3), frontal crush out (2), thrust down (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| May 1968 | Day 3 | Ryuko Seiho | Slap down | Maegashira 3 East vs Ozeki 2 West |
| January 1969 | Day 3 | Kitanofuji Katsuaki | Slap down | Maegashira 3 East vs Ozeki 1 West |
| May 1969 | Day 1 | Ryuko Seiho | Frontal thrust down | Ozeki 2 East vs Maegashira 2 East |
| July 1969 | Day 5 | Ryuko Seiho | Under shoulder swing down | Maegashira 1 East vs Ozeki 1 West |
| September 1969 | Day 8 | Kitanofuji Katsuaki | Frontal crush out | Ozeki 2 East vs Maegashira 1 East |
| November 1969 | Day 12 | Kitanofuji Katsuaki | Thrust down | Maegashira 6 West vs Ozeki 1 West |
| January 1970 | Day 8 | Kitanofuji Katsuaki | Frontal crush out | Ozeki 1 East vs Maegashira 1 West |
| March 1970 | Day 9 | Kitanofuji Katsuaki | Frontal force out | Yokozuna 1 East vs Komusubi 1 West |
| May 1970 | Day 5 | Kitanofuji Katsuaki | Over arm throw | Komusubi 1 East vs Yokozuna 1 West |
| July 1970 | Day 2 | Kitanofuji Katsuaki | Over arm throw | Yokozuna 1 East vs Maegashira 3 East |
| November 1970 | Day 2 | Kitanofuji Katsuaki | Frontal force out | Yokozuna 2 East vs Komusubi 1 East |
| January 1971 | Day 8 | Kitanofuji Katsuaki | Frontal force out | Yokozuna 2 East vs Maegashira 1 East |
| March 1971 | Day 6 | Kitanofuji Katsuaki | Over arm throw | Yokozuna 2 East vs Maegashira 1 West |
| May 1971 | Day 1 | Kitanofuji Katsuaki | Slap down | Yokozuna 2 East vs Maegashira 2 West |
| September 1971 | Day 7 | Kitanofuji Katsuaki | Slap down | Maegashira 1 West vs Yokozuna 1 West |
| November 1971 | Day 3 | Kitanofuji Katsuaki | Frontal force out | Yokozuna 1 East vs Maegashira 3 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.