Head-to-head · 13 bouts
Koboyama Daizo and Wakasegawa Yoshimitsu have met 13 times in recorded sumo. Koboyama Daizo leads 7–6.
Koboyama Daizo has won with: beltless armthrow (3), slap down (2), frontal force out (1), thrust down (1).
Wakasegawa Yoshimitsu has won with: frontal force out (3), hand pull down (1), arm barring force out (1), over arm throw (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| November 1982 | Day 13 | Wakasegawa Yoshimitsu | Hand pull down | Juryo 1 East vs Juryo 2 East |
| September 1983 | Day 13 | Wakasegawa Yoshimitsu | Arm barring force out | Maegashira 2 East vs Maegashira 7 East |
| November 1983 | Day 6 | Koboyama Daizo | Slap down | Maegashira 13 West vs Maegashira 7 West |
| November 1984 | Day 7 | Koboyama Daizo | Frontal force out | Maegashira 14 East vs Maegashira 10 West |
| July 1987 | Day 4 | Koboyama Daizo | Beltless armthrow | Maegashira 13 East vs Maegashira 7 West |
| May 1988 | Day 1 | Koboyama Daizo | Beltless armthrow | Maegashira 11 East vs Maegashira 10 West |
| July 1988 | Day 5 | Wakasegawa Yoshimitsu | Over arm throw | Maegashira 3 East vs Maegashira 7 East |
| September 1988 | Day 6 | Koboyama Daizo | Thrust down | Maegashira 8 East vs Maegashira 11 West |
| November 1988 | Day 9 | Wakasegawa Yoshimitsu | Frontal force out | Maegashira 8 West vs Maegashira 3 West |
| January 1989 | Day 7 | Koboyama Daizo | Beltless armthrow | Maegashira 13 West vs Maegashira 7 West |
| July 1989 | Day 14 | Wakasegawa Yoshimitsu | Frontal force out | Maegashira 12 West vs Maegashira 9 West |
| September 1989 | Day 3 | Koboyama Daizo | Slap down | Maegashira 10 East vs Maegashira 6 West |
| January 1990 | Day 10 | Wakasegawa Yoshimitsu | Frontal force out | Maegashira 14 East vs Maegashira 4 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.