Head-to-head · 46 bouts
Musashimaru Koyo and Kaio Hiroyuki have met 46 times in recorded sumo. Musashimaru Koyo leads 26–20.
Musashimaru Koyo has won with: frontal force out (16), frontal push out (5), rear push out (2), slap down (1), thrust down (1).
Kaio Hiroyuki has won with: frontal force out (4), outside leg trip (2), arm bar throw (2), frontal push out (2), pulling underarm throw (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| March 1994 | Day 6 | Kaio Hiroyuki | Frontal force out | Maegashira 1 West vs Ozeki 2 West |
| May 1994 | Day 7 | Musashimaru Koyo | Frontal force out | Ozeki 2 East vs Komusubi 1 East |
| July 1994 | Day 7 | Musashimaru Koyo | Frontal force out | Komusubi 1 East vs Ozeki 1 West |
| September 1994 | Day 8 | Musashimaru Koyo | Frontal force out | Ozeki 1 East vs Maegashira 2 East |
| November 1994 | Day 7 | Musashimaru Koyo | Frontal push out | Komusubi 1 East vs Ozeki 2 West |
| January 1995 | Day 7 | Musashimaru Koyo | Frontal force out | Sekiwake 1 East vs Ozeki 1 West |
| March 1995 | Day 9 | Musashimaru Koyo | Frontal force out | Ozeki 1 East vs Sekiwake 1 East |
| May 1995 | Day 6 | Kaio Hiroyuki | Outside leg trip | Ozeki 1 East vs Sekiwake 1 West |
| July 1995 | Day 8 | Musashimaru Koyo | Slap down | Ozeki 1 East vs Sekiwake 1 East |
| September 1995 | Day 9 | Kaio Hiroyuki | Frontal force out | Ozeki 1 East vs Sekiwake 1 West |
| November 1995 | Day 9 | Kaio Hiroyuki | Frontal force out | Ozeki 1 East vs Sekiwake 1 East |
| January 1996 | Day 12 | Kaio Hiroyuki | Arm bar throw | Sekiwake 1 East vs Ozeki 1 West |
| March 1996 | Day 6 | Kaio Hiroyuki | Pulling underarm throw | Sekiwake 1 East vs Ozeki 1 West |
| May 1996 | Day 7 | Kaio Hiroyuki | Thrust down | Ozeki 2 East vs Sekiwake 1 West |
| July 1996 | Day 9 | Kaio Hiroyuki | Slap down | Ozeki 2 East vs Sekiwake 1 East |
| September 1996 | Day 8 | Kaio Hiroyuki | Frontal push out | Ozeki 2 East vs Sekiwake 1 East |
| November 1996 | Day 11 | Musashimaru Koyo | Frontal force out | Sekiwake 1 West vs Ozeki 1 West |
| January 1997 | Day 8 | Musashimaru Koyo | Frontal push out | Sekiwake 1 East vs Ozeki 1 West |
| March 1997 | Day 12 | Musashimaru Koyo | Frontal force out | Maegashira 1 East vs Ozeki 1 West |
| May 1997 | Day 9 | Musashimaru Koyo | Frontal force out | Ozeki 1 East vs Sekiwake 1 East |
| September 1997 | Day 4 | Musashimaru Koyo | Frontal force out | Ozeki 1 East vs Komusubi 1 West |
| November 1997 | Day 10 | Musashimaru Koyo | Thrust down | Ozeki 1 East vs Maegashira 3 West |
| January 1998 | Day 2 | Musashimaru Koyo | Frontal push out | Komusubi 1 East vs Ozeki 1 West |
| March 1998 | Day 5 | Kaio Hiroyuki | Arm lock throw | Ozeki 1 East vs Komusubi 1 West |
| May 1998 | Day 6 | Kaio Hiroyuki | Arm bar throw | Sekiwake 1 West vs Ozeki 1 West |
| July 1998 | Day 3 | Musashimaru Koyo | Rear push out | Komusubi 1 West vs Ozeki 1 West |
| September 1998 | Day 5 | Musashimaru Koyo | Frontal force out | Ozeki 1 East vs Maegashira 1 East |
| November 1998 | Day 6 | Musashimaru Koyo | Frontal push out | Ozeki 1 East vs Maegashira 1 West |
| January 1999 | Day 5 | Kaio Hiroyuki | Hand pull down | Ozeki 1 East vs Maegashira 1 East |
| March 1999 | Day 5 | Kaio Hiroyuki | Frontal force out | Ozeki 1 East vs Komusubi 2 West |
| May 1999 | Day 7 | Musashimaru Koyo | Rear push out | Ozeki 1 East vs Sekiwake 1 West |
| July 1999 | Day 9 | Kaio Hiroyuki | Underarm throw | Sekiwake 1 East vs Yokozuna 1 West |
| September 1999 | Day 13 | Musashimaru Koyo | Frontal force out | Yokozuna 1 West vs Sekiwake 1 East |
| November 1999 | Day 5 | Musashimaru Koyo | Frontal force out | Yokozuna 1 East vs Sekiwake 1 East |
| January 2000 | Day 1 | Musashimaru Koyo | Frontal force out | Yokozuna 1 East vs Sekiwake 1 East |
| March 2000 | Day 12 | Musashimaru Koyo | Frontal force out | Yokozuna 2 East vs Komusubi 1 West |
| July 2000 | Day 14 | Kaio Hiroyuki | Pulling over armthrow | Sekiwake 1 East vs Yokozuna 2 East |
| September 2000 | Day 14 | Musashimaru Koyo | Frontal push out | Ozeki 2 East vs Yokozuna 1 West |
| November 2000 | Day 14 | Kaio Hiroyuki | One-armed shoulder throw | Yokozuna 1 East vs Ozeki 1 East |
| January 2001 | Day 14 | Musashimaru Koyo | Frontal force out | Ozeki 1 East vs Yokozuna 1 West |
| March 2001 | Day 13 | Musashimaru Koyo | Frontal force out | Ozeki 1 East vs Yokozuna 1 West |
| July 2001 | Day 14 | Kaio Hiroyuki | Over arm throw | Ozeki 3 East vs Yokozuna 1 West |
| November 2001 | Day 15 | Kaio Hiroyuki | Rear push out | Yokozuna 1 East vs Ozeki 2 East |
| March 2002 | Day 13 | Musashimaru Koyo | Frontal push down | Yokozuna 1 East vs Ozeki 2 West |
| May 2002 | Day 15 | Kaio Hiroyuki | Frontal push out | Yokozuna 1 East vs Ozeki 1 East |
| September 2002 | Day 13 | Kaio Hiroyuki | Outside leg trip | Yokozuna 1 East vs Ozeki 2 East |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.