Head-to-head · 21 bouts
Harunoyama Tatsunao and Kobo Kenichi have met 21 times in recorded sumo. Harunoyama Tatsunao leads 13–8.
Harunoyama Tatsunao has won with: frontal force out (10), frontal push out (2), frontal push down (1).
Kobo Kenichi has won with: frontal force out (2), over arm throw (1), pulling over armthrow (1), thrust down (1), slap down (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| September 1996 | Day 10 | Harunoyama Tatsunao | Frontal push down | Makushita 28 East vs Makushita 25 East |
| September 2000 | Day 3 | Kobo Kenichi | Frontal force out | Makushita 4 East vs Makushita 3 West |
| November 2000 | Day 1 | Kobo Kenichi | Over arm throw | Juryo 13 East vs Juryo 12 West |
| March 2001 | Day 1 | Harunoyama Tatsunao | Frontal force out | Juryo 8 East vs Juryo 8 West |
| May 2001 | Day 4 | Harunoyama Tatsunao | Frontal push out | Juryo 4 East vs Juryo 6 East |
| September 2001 | Day 14 | Kobo Kenichi | Frontal force out | Juryo 1 East vs Juryo 7 East |
| March 2002 | Day 14 | Harunoyama Tatsunao | Frontal force out | Juryo 2 East vs Juryo 10 East |
| September 2002 | Day 12 | Kobo Kenichi | Pulling over armthrow | Juryo 4 East vs Juryo 10 East |
| March 2003 | Day 15 | Harunoyama Tatsunao | Frontal force out | Juryo 2 East vs Juryo 10 West |
| May 2003 | Day 10 | Harunoyama Tatsunao | Frontal force out | Juryo 7 East vs Juryo 3 West |
| July 2003 | Day 14 | Harunoyama Tatsunao | Frontal force out | Juryo 8 West vs Juryo 4 West |
| September 2003 | Day 6 | Harunoyama Tatsunao | Frontal force out | Juryo 8 West vs Juryo 5 West |
| November 2003 | Day 2 | Harunoyama Tatsunao | Frontal force out | Juryo 5 West vs Juryo 3 West |
| January 2004 | Day 11 | Harunoyama Tatsunao | Frontal force out | Juryo 3 East vs Juryo 1 West |
| September 2004 | Day 4 | Harunoyama Tatsunao | Frontal force out | Juryo 6 East vs Juryo 9 West |
| November 2004 | Day 12 | Harunoyama Tatsunao | Frontal force out | Juryo 4 East vs Juryo 5 East |
| March 2005 | Day 3 | Harunoyama Tatsunao | Frontal push out | Juryo 7 East vs Juryo 10 West |
| July 2005 | Day 11 | Kobo Kenichi | Thrust down | Juryo 7 East vs Juryo 10 East |
| September 2005 | Day 12 | Kobo Kenichi | Slap down | Juryo 1 East vs Juryo 6 West |
| March 2006 | Day 6 | Kobo Kenichi | Hand pull down | Juryo 9 East vs Juryo 13 East |
| May 2006 | Day 7 | Kobo Kenichi | Arm lock throw | Juryo 14 West vs Juryo 9 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.