Head-to-head · 15 bouts
Kotochitose Kosei and Oshio Kenji have met 15 times in recorded sumo. Kotochitose Kosei leads 11–4.
Kotochitose Kosei has won with: beltless armthrow (2), over arm throw (2), frontal push out (2), thrust down (1), frontal force out (1).
Oshio Kenji has won with: frontal push out (2), frontal thrust out (1), slap down (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| January 1980 | Day 10 | Kotochitose Kosei | Beltless armthrow | Juryo 7 West vs Juryo 5 West |
| May 1980 | Day 9 | Kotochitose Kosei | Thrust down | Juryo 5 East vs Juryo 7 West |
| July 1980 | Day 6 | Kotochitose Kosei | Frontal force out | Juryo 2 East vs Juryo 7 East |
| September 1980 | Day 9 | Oshio Kenji | Frontal push out | Juryo 1 East vs Juryo 9 East |
| May 1981 | Day 4 | Kotochitose Kosei | Beltless armthrow | Maegashira 13 West vs Maegashira 8 West |
| July 1981 | Day 2 | Kotochitose Kosei | Over arm throw | Maegashira 6 East vs Maegashira 10 East |
| November 1981 | Day 12 | Oshio Kenji | Frontal thrust out | Maegashira 7 East vs Maegashira 8 East |
| July 1984 | Day 11 | Kotochitose Kosei | Pulling over armthrow | Juryo 6 East vs Juryo 2 West |
| September 1984 | Day 15 | Kotochitose Kosei | Frontal push out | Juryo 1 East vs Juryo 8 West |
| November 1984 | Day 15 | Oshio Kenji | Slap down | Juryo 9 East vs Juryo 10 West |
| January 1985 | Day 10 | Kotochitose Kosei | Frontal thrust out | Juryo 5 East vs Juryo 3 West |
| May 1985 | Day 5 | Oshio Kenji | Frontal push out | Juryo 7 West vs Juryo 2 West |
| July 1985 | Day 10 | Kotochitose Kosei | Over arm throw | Juryo 1 East vs Juryo 10 East |
| September 1985 | Day 6 | Kotochitose Kosei | Frontal push out | Juryo 9 East vs Juryo 10 West |
| November 1985 | Day 3 | Kotochitose Kosei | Arm lock throw | Juryo 7 East vs Juryo 12 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.