Head-to-head · 21 bouts
Kotochitose Kosei and Hakuryu Hiroshi have met 21 times in recorded sumo. Kotochitose Kosei leads 14–7.
Kotochitose Kosei has won with: frontal force out (6), over arm throw (3), slap down (1), arm lock throw (1), frontal crush out (1).
Hakuryu Hiroshi has won with: frontal force out (2), thrust down (1), slap down (1), frontal lift out (1), underarm throw (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| March 1978 | Day 5 | Hakuryu Hiroshi | — | Makushita 9 West vs Makushita 7 West |
| September 1979 | Day 10 | Kotochitose Kosei | Frontal force out | Juryo 4 East vs Juryo 11 West |
| November 1979 | Day 13 | Kotochitose Kosei | Slap down | Juryo 4 West vs Juryo 1 West |
| January 1980 | Day 9 | Kotochitose Kosei | Over arm throw | Juryo 9 West vs Juryo 5 West |
| March 1980 | Day 5 | Hakuryu Hiroshi | Thrust down | Juryo 11 East vs Juryo 4 West |
| July 1980 | Day 13 | Kotochitose Kosei | Arm lock throw | Juryo 2 East vs Juryo 12 East |
| September 1980 | Day 2 | Kotochitose Kosei | Over arm throw | Juryo 1 East vs Juryo 6 East |
| November 1980 | Day 9 | Kotochitose Kosei | Frontal crush out | Juryo 6 East vs Juryo 9 East |
| March 1981 | Day 4 | Kotochitose Kosei | Frontal thrust out | Juryo 1 East vs Juryo 6 West |
| January 1982 | Day 12 | Hakuryu Hiroshi | Frontal force out | Juryo 2 East vs Juryo 1 West |
| March 1982 | Day 4 | Kotochitose Kosei | Frontal force out | Juryo 10 East vs Juryo 5 West |
| May 1982 | Day 7 | Hakuryu Hiroshi | Slap down | Juryo 2 East vs Juryo 6 East |
| November 1982 | Day 7 | Kotochitose Kosei | Frontal force out | Juryo 11 West vs Juryo 2 West |
| May 1983 | Day 10 | Kotochitose Kosei | Frontal force out | Juryo 4 West vs Juryo 1 West |
| July 1983 | Day 5 | Kotochitose Kosei | Frontal force out | Juryo 3 East vs Juryo 7 West |
| September 1983 | Day 3 | Kotochitose Kosei | Frontal force out | Juryo 2 East vs Juryo 9 West |
| January 1984 | Day 5 | Hakuryu Hiroshi | Frontal lift out | Juryo 2 East vs Juryo 9 West |
| January 1985 | Day 9 | Kotochitose Kosei | Over arm throw | Juryo 5 East vs Juryo 10 East |
| May 1985 | Day 14 | Hakuryu Hiroshi | Frontal force out | Juryo 11 West vs Juryo 7 West |
| July 1985 | Day 14 | Kotochitose Kosei | Frontal lift out | Juryo 10 East vs Juryo 12 East |
| November 1985 | Day 11 | Hakuryu Hiroshi | Underarm throw | Juryo 5 East vs Juryo 7 East |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.