Head-to-head · 18 bouts
Kotoryu Hiroo and Chiyotaikai Ryuji have met 18 times in recorded sumo. Chiyotaikai Ryuji leads 12–6.
Kotoryu Hiroo has won with: frontal force out (2), hand pull down (1), thigh grabbing push down (1), frontal push out (1), thrust down (1).
Chiyotaikai Ryuji has won with: frontal push out (5), slap down (3), frontal force out (1), thrust down (1), arm lock throw (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| January 1995 | Day 14 | Kotoryu Hiroo | Hand pull down | Makushita 5 East vs Makushita 10 East |
| March 1995 | Day 11 | Chiyotaikai Ryuji | Slap down | Makushita 6 East vs Makushita 1 West |
| July 1995 | Day 7 | Kotoryu Hiroo | Frontal force out | Juryo 13 West vs Juryo 9 West |
| September 1995 | Day 4 | Chiyotaikai Ryuji | Frontal force out | Juryo 12 East vs Juryo 8 West |
| November 1995 | Day 3 | Kotoryu Hiroo | Thigh grabbing push down | Juryo 10 East vs Juryo 6 West |
| January 1996 | Day 7 | Chiyotaikai Ryuji | Thrust down | Juryo 12 East vs Juryo 7 West |
| March 1996 | Day 4 | Chiyotaikai Ryuji | Arm lock throw | Juryo 4 East vs Juryo 9 West |
| May 1996 | Day 3 | Chiyotaikai Ryuji | Frontal push out | Juryo 2 East vs Juryo 6 East |
| July 1996 | Day 6 | Kotoryu Hiroo | Frontal push out | Maegashira 15 East vs Juryo 2 West |
| September 1997 | Day 1 | Chiyotaikai Ryuji | Slap down | Maegashira 12 East vs Maegashira 11 West |
| November 1997 | Day 14 | Kotoryu Hiroo | Thrust down | Maegashira 5 East vs Maegashira 14 West |
| March 1998 | Day 10 | Chiyotaikai Ryuji | Slap down | Maegashira 1 East vs Maegashira 5 East |
| January 2000 | Day 3 | Kotoryu Hiroo | Frontal force out | Maegashira 1 West vs Ozeki 1 West |
| March 2000 | Day 9 | Chiyotaikai Ryuji | Frontal push out | Maegashira 3 East vs Ozeki 1 West |
| September 2002 | Day 3 | Chiyotaikai Ryuji | Frontal push out | Ozeki 1 East vs Maegashira 3 West |
| March 2003 | Day 9 | Chiyotaikai Ryuji | Frontal thrust out | Ozeki 2 East vs Maegashira 5 East |
| September 2003 | Day 8 | Chiyotaikai Ryuji | Frontal push out | Maegashira 3 East vs Ozeki 1 West |
| July 2004 | Day 6 | Chiyotaikai Ryuji | Frontal push out | Maegashira 3 East vs Ozeki 1 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.