Head-to-head · 20 bouts
Chiyotaikai Ryuji and Musashimaru Koyo have met 20 times in recorded sumo. Musashimaru Koyo leads 11–9.
Chiyotaikai Ryuji has won with: frontal push out (4), slap down (2), thrust down (2), under shoulder swing down (1).
Musashimaru Koyo has won with: frontal push out (4), frontal force out (2), frontal push down (1), hand pull down (1), frontal thrust down (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| March 1998 | Day 7 | Musashimaru Koyo | Frontal force out | Ozeki 1 East vs Maegashira 1 East |
| May 1998 | Day 8 | Musashimaru Koyo | Frontal push down | Komusubi 1 East vs Ozeki 1 West |
| July 1998 | Day 8 | Chiyotaikai Ryuji | Under shoulder swing down | Sekiwake 1 West vs Ozeki 1 West |
| September 1998 | Day 4 | Musashimaru Koyo | Frontal push out | Ozeki 1 East vs Sekiwake 1 East |
| November 1998 | Day 9 | Chiyotaikai Ryuji | Slap down | Ozeki 1 East vs Sekiwake 1 East |
| January 1999 | Day 11 | Chiyotaikai Ryuji | Slap down | Ozeki 1 East vs Sekiwake 1 East |
| March 1999 | Day 10 | Musashimaru Koyo | Frontal push out | Ozeki 1 East vs Ozeki 1 West |
| July 1999 | Day 8 | Chiyotaikai Ryuji | Frontal push out | Ozeki 1 West vs Yokozuna 1 West |
| September 1999 | Day 14 | Chiyotaikai Ryuji | Thrust down | Yokozuna 1 West vs Ozeki 1 East |
| November 1999 | Day 14 | Musashimaru Koyo | Frontal force out | Yokozuna 1 East vs Ozeki 1 East |
| March 2000 | Day 15 | Chiyotaikai Ryuji | Thrust down | Yokozuna 2 East vs Ozeki 1 West |
| July 2000 | Day 13 | Chiyotaikai Ryuji | Frontal push out | Ozeki 1 East vs Yokozuna 2 East |
| September 2000 | Day 13 | Musashimaru Koyo | Hand pull down | Ozeki 1 East vs Yokozuna 1 West |
| November 2000 | Day 12 | Musashimaru Koyo | Frontal push out | Yokozuna 1 East vs Ozeki 1 West |
| May 2001 | Day 14 | Musashimaru Koyo | Frontal thrust down | Ozeki 3 East vs Yokozuna 1 West |
| July 2001 | Day 15 | Musashimaru Koyo | Frontal push out | Ozeki 1 East vs Yokozuna 1 West |
| March 2002 | Day 14 | Musashimaru Koyo | Slap down | Yokozuna 1 East vs Ozeki 1 West |
| May 2002 | Day 13 | Chiyotaikai Ryuji | Frontal push out | Yokozuna 1 East vs Ozeki 2 West |
| July 2002 | Day 15 | Chiyotaikai Ryuji | Frontal push out | Yokozuna 1 East vs Ozeki 1 West |
| September 2002 | Day 14 | Musashimaru Koyo | Arm barring force out | Yokozuna 1 East vs Ozeki 1 East |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.