Head-to-head · 15 bouts
Ozutsu Takeshi and Koboyama Daizo have met 15 times in recorded sumo. Ozutsu Takeshi leads 10–5.
Ozutsu Takeshi has won with: frontal force out (7), arm lock throw (1), thrust down (1), over arm throw (1).
Koboyama Daizo has won with: thrust down (2), beltless armthrow (1), hand pull down (1), frontal force out (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| July 1982 | Day 12 | Koboyama Daizo | Beltless armthrow | Maegashira 5 East vs Maegashira 11 East |
| September 1984 | Day 14 | Ozutsu Takeshi | Frontal force out | Maegashira 7 West vs Maegashira 1 West |
| March 1985 | Day 5 | Koboyama Daizo | Thrust down | Maegashira 7 East vs Maegashira 10 West |
| July 1985 | Day 1 | Ozutsu Takeshi | Frontal force out | Maegashira 8 East vs Maegashira 7 West |
| September 1985 | Day 12 | Koboyama Daizo | Thrust down | Maegashira 1 East vs Komusubi 1 West |
| November 1985 | Day 11 | Ozutsu Takeshi | Frontal force out | Maegashira 7 East vs Maegashira 8 West |
| March 1986 | Day 9 | Ozutsu Takeshi | Arm lock throw | Maegashira 4 East vs Maegashira 8 East |
| May 1986 | Day 9 | Ozutsu Takeshi | Frontal force out | Maegashira 11 East vs Maegashira 9 West |
| November 1986 | Day 5 | Ozutsu Takeshi | Frontal force out | Maegashira 8 East vs Maegashira 13 East |
| January 1987 | Day 7 | Ozutsu Takeshi | Thrust down | Maegashira 3 East vs Maegashira 9 West |
| March 1987 | Day 11 | Ozutsu Takeshi | Frontal force out | Maegashira 6 East vs Maegashira 10 West |
| July 1988 | Day 7 | Koboyama Daizo | Hand pull down | Maegashira 7 East vs Maegashira 10 East |
| May 1989 | Day 10 | Ozutsu Takeshi | Over arm throw | Maegashira 8 West vs Maegashira 3 West |
| July 1989 | Day 8 | Koboyama Daizo | Frontal force out | Maegashira 12 West vs Maegashira 4 West |
| November 1989 | Day 9 | Ozutsu Takeshi | Frontal force out | Maegashira 7 East vs Maegashira 12 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.