Head-to-head · 15 bouts
Musashimaru Koyo and Wakashoyo Shunichi have met 15 times in recorded sumo. Musashimaru Koyo leads 9–6.
Musashimaru Koyo has won with: frontal push down (3), frontal push out (2), frontal crush out (2).
Wakashoyo Shunichi has won with: hand pull down (2), over arm throw (2), arm lock throw (1), frontal force out (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| March 1990 | Day 8 | Musashimaru Koyo | — | Sandanme 92 East vs Sandanme 94 West |
| March 1991 | Day 4 | Musashimaru Koyo | — | Makushita 4 West vs Makushita 3 West |
| July 1991 | Day 8 | Wakashoyo Shunichi | Hand pull down | Juryo 11 East vs Juryo 3 West |
| November 1992 | Day 3 | Musashimaru Koyo | Frontal push down | Sekiwake 1 East vs Maegashira 4 East |
| January 1993 | Day 5 | Musashimaru Koyo | Frontal push out | Sekiwake 2 East vs Maegashira 3 West |
| March 1993 | Day 4 | Wakashoyo Shunichi | Hand pull down | Sekiwake 1 East vs Komusubi 1 West |
| May 1993 | Day 15 | Wakashoyo Shunichi | Arm lock throw | Sekiwake 1 East vs Sekiwake 2 East |
| July 1993 | Day 3 | Wakashoyo Shunichi | Frontal force out | Komusubi 1 West vs Sekiwake 1 West |
| September 1993 | Day 1 | Musashimaru Koyo | Frontal push out | Sekiwake 1 East vs Maegashira 1 East |
| November 1993 | Day 12 | Musashimaru Koyo | Frontal crush out | Sekiwake 2 West vs Maegashira 5 West |
| January 1994 | Day 7 | Musashimaru Koyo | Frontal crush out | Sekiwake 1 East vs Komusubi 1 West |
| March 1994 | Day 9 | Wakashoyo Shunichi | Over arm throw | Maegashira 2 East vs Ozeki 2 West |
| May 1995 | Day 1 | Musashimaru Koyo | Frontal push down | Ozeki 1 East vs Maegashira 4 East |
| September 1995 | Day 1 | Musashimaru Koyo | Frontal push down | Ozeki 1 East vs Maegashira 4 East |
| November 1995 | Day 10 | Wakashoyo Shunichi | Over arm throw | Ozeki 1 East vs Maegashira 4 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.