Head-to-head · 24 bouts
Kotoryu Hiroo and Kyokushuzan Noboru have met 24 times in recorded sumo. Kotoryu Hiroo leads 13–11.
Kotoryu Hiroo has won with: frontal force out (5), frontal lift out (4), frontal push down (1), over arm throw (1), twisting backward knee trip (1).
Kyokushuzan Noboru has won with: frontal force out (4), rear push out (2), slap down (1), frontal push out (1), under shoulder swing down (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| May 1995 | Day 9 | Kotoryu Hiroo | Frontal push down | Makushita 2 East vs Juryo 13 West |
| July 1995 | Day 14 | Kyokushuzan Noboru | Slap down | Juryo 13 East vs Juryo 9 West |
| September 1995 | Day 15 | Kyokushuzan Noboru | Rear push out | Juryo 8 West vs Juryo 6 West |
| January 1996 | Day 13 | Kotoryu Hiroo | Frontal force out | Juryo 9 West vs Juryo 7 West |
| May 1996 | Day 6 | Kyokushuzan Noboru | Frontal push out | Juryo 2 East vs Juryo 4 East |
| September 1996 | Day 14 | Kotoryu Hiroo | Over arm throw | Maegashira 15 East vs Maegashira 13 West |
| March 1997 | Day 7 | Kotoryu Hiroo | Frontal force out | Maegashira 4 East vs Komusubi 1 West |
| July 1997 | Day 7 | Kotoryu Hiroo | Frontal force out | Maegashira 12 West vs Maegashira 11 West |
| November 1997 | Day 7 | Kotoryu Hiroo | Frontal lift out | Maegashira 14 West vs Maegashira 8 West |
| March 1998 | Day 9 | Kyokushuzan Noboru | Under shoulder swing down | Maegashira 5 East vs Maegashira 7 East |
| May 1998 | Day 7 | Kotoryu Hiroo | Twisting backward knee trip | Maegashira 13 West vs Maegashira 10 West |
| July 1998 | Day 4 | Kyokushuzan Noboru | Leg pick | Maegashira 13 West vs Maegashira 11 West |
| November 1998 | Day 14 | Kyokushuzan Noboru | Over arm throw | Maegashira 11 East vs Maegashira 12 East |
| July 1999 | Day 13 | Kyokushuzan Noboru | Frontal force out | Maegashira 7 East vs Maegashira 15 East |
| January 2001 | Day 5 | Kotoryu Hiroo | Frontal force out | Maegashira 10 East vs Maegashira 7 West |
| July 2001 | Day 15 | Kotoryu Hiroo | Rear push out | Maegashira 5 East vs Maegashira 10 East |
| September 2001 | Day 7 | Kotoryu Hiroo | Frontal force out | Maegashira 6 East vs Maegashira 7 West |
| May 2002 | Day 13 | Kyokushuzan Noboru | Frontal force out | Maegashira 8 East vs Maegashira 10 East |
| November 2002 | Day 6 | Kotoryu Hiroo | Frontal lift out | Maegashira 5 East vs Maegashira 6 West |
| January 2003 | Day 15 | Kyokushuzan Noboru | Frontal force out | Maegashira 8 West vs Maegashira 6 West |
| March 2003 | Day 7 | Kyokushuzan Noboru | Frontal force out | Maegashira 5 East vs Maegashira 7 West |
| July 2003 | Day 7 | Kotoryu Hiroo | Frontal lift out | Maegashira 2 East vs Maegashira 5 West |
| July 2004 | Day 11 | Kotoryu Hiroo | Frontal lift out | Maegashira 3 East vs Maegashira 3 West |
| January 2005 | Day 7 | Kyokushuzan Noboru | Rear push out | Maegashira 10 West vs Maegashira 7 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.