Head-to-head · 23 bouts
Toryu Kenji and Koboyama Daizo have met 23 times in recorded sumo. Koboyama Daizo leads 14–9.
Toryu Kenji has won with: slap down (4), frontal force out (2), thrust down (2), frontal push out (1).
Koboyama Daizo has won with: frontal force out (4), frontal push out (3), frontal crush out (2), thrust down (2), slap down (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| March 1976 | Day 8 | Koboyama Daizo | — | Sandanme 16 East vs Sandanme 19 East |
| September 1981 | Day 13 | Koboyama Daizo | Slap down | Juryo 1 East vs Maegashira 9 West |
| January 1982 | Day 13 | Toryu Kenji | Frontal push out | Maegashira 12 West vs Maegashira 9 West |
| July 1982 | Day 10 | Koboyama Daizo | Frontal crush out | Maegashira 11 East vs Maegashira 2 West |
| March 1983 | Day 3 | Koboyama Daizo | Thrust down | Maegashira 7 East vs Maegashira 12 West |
| May 1983 | Day 10 | Koboyama Daizo | Frontal push out | Maegashira 1 East vs Maegashira 3 East |
| July 1983 | Day 15 | Koboyama Daizo | Frontal push out | Maegashira 7 West vs Maegashira 5 West |
| September 1983 | Day 10 | Toryu Kenji | Frontal force out | Maegashira 1 East vs Maegashira 2 East |
| November 1983 | Day 13 | Koboyama Daizo | Frontal force out | Maegashira 7 West vs Maegashira 6 West |
| January 1984 | Day 12 | Toryu Kenji | Slap down | Maegashira 2 West vs Sekiwake 1 West |
| September 1984 | Day 8 | Toryu Kenji | Slap down | Maegashira 9 East vs Maegashira 7 West |
| January 1985 | Day 10 | Toryu Kenji | Thrust down | Maegashira 4 East vs Maegashira 8 West |
| July 1985 | Day 14 | Koboyama Daizo | Frontal force out | Maegashira 7 West vs Maegashira 5 West |
| March 1986 | Day 12 | Toryu Kenji | Slap down | Maegashira 8 East vs Maegashira 11 West |
| July 1986 | Day 15 | Koboyama Daizo | Frontal crush out | Maegashira 7 East vs Maegashira 10 West |
| November 1986 | Day 3 | Koboyama Daizo | Frontal force out | Maegashira 13 East vs Maegashira 8 West |
| January 1987 | Day 15 | Koboyama Daizo | Thrust down | Maegashira 9 West vs Maegashira 3 West |
| March 1987 | Day 2 | Toryu Kenji | Slap down | Maegashira 6 East vs Maegashira 12 East |
| May 1987 | Day 5 | Toryu Kenji | Frontal force out | Maegashira 9 West vs Maegashira 1 West |
| July 1987 | Day 8 | Koboyama Daizo | Frontal force out | Maegashira 12 East vs Maegashira 7 West |
| September 1987 | Day 11 | Koboyama Daizo | Frontal push out | Maegashira 8 East vs Maegashira 12 West |
| November 1987 | Day 6 | Toryu Kenji | Thrust down | Maegashira 4 East vs Maegashira 11 West |
| July 1988 | Day 12 | Koboyama Daizo | Hand pull down | Maegashira 7 East vs Maegashira 13 East |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.