Head-to-head · 23 bouts
Washuyama Yoshikazu and Oshio Kenji have met 23 times in recorded sumo. Oshio Kenji leads 13–10.
Washuyama Yoshikazu has won with: frontal push down (2), underarm throw (1), twisting backward knee trip (1), frontal push out (1), slap down (1).
Oshio Kenji has won with: frontal push out (5), frontal push down (2), frontal thrust out (2), frontal thrust down (1), arm lock throw (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| September 1972 | Day 3 | Oshio Kenji | Frontal thrust down | Juryo 5 East vs Juryo 10 West |
| May 1973 | Day 2 | Washuyama Yoshikazu | Underarm throw | Maegashira 13 West vs Maegashira 11 West |
| July 1974 | Day 10 | Oshio Kenji | Frontal push down | Juryo 1 East vs Juryo 4 East |
| November 1974 | Day 1 | Washuyama Yoshikazu | Twisting backward knee trip | Maegashira 12 East vs Maegashira 12 West |
| March 1975 | Day 11 | Oshio Kenji | Frontal push out | Juryo 7 West vs Juryo 1 West |
| May 1975 | Day 9 | Washuyama Yoshikazu | Frontal push down | Maegashira 14 East vs Juryo 5 East |
| September 1975 | Day 11 | Washuyama Yoshikazu | Frontal push down | Maegashira 7 East vs Maegashira 10 West |
| March 1976 | Day 14 | Oshio Kenji | Frontal push out | Komusubi 1 East vs Maegashira 13 East |
| May 1976 | Day 7 | Washuyama Yoshikazu | Frontal push out | Sekiwake 1 East vs Maegashira 4 East |
| September 1977 | Day 5 | Oshio Kenji | Arm lock throw | Maegashira 1 West vs Sekiwake 1 West |
| September 1978 | Day 1 | Oshio Kenji | Frontal thrust out | Maegashira 10 East vs Maegashira 10 West |
| November 1978 | Day 1 | Washuyama Yoshikazu | Slap down | Maegashira 11 East vs Maegashira 11 West |
| January 1981 | Day 2 | Washuyama Yoshikazu | Beltless armthrow | Maegashira 10 West vs Maegashira 7 West |
| March 1981 | Day 2 | Washuyama Yoshikazu | Frontal force out | Maegashira 10 West vs Maegashira 6 West |
| May 1983 | Day 2 | Oshio Kenji | Frontal push down | Maegashira 6 East vs Maegashira 11 West |
| July 1983 | Day 5 | Oshio Kenji | Frontal push out | Maegashira 9 East vs Maegashira 12 West |
| January 1984 | Day 13 | Oshio Kenji | Frontal thrust out | Maegashira 11 East vs Juryo 1 West |
| March 1984 | Day 10 | Oshio Kenji | Frontal push out | Juryo 2 East vs Maegashira 11 West |
| September 1984 | Day 1 | Washuyama Yoshikazu | Hand pull down | Juryo 1 East vs Juryo 1 West |
| January 1985 | Day 14 | Oshio Kenji | Frontal force out | Juryo 7 East vs Juryo 3 West |
| March 1985 | Day 6 | Oshio Kenji | Frontal push out | Juryo 7 East vs Juryo 8 West |
| July 1985 | Day 3 | Washuyama Yoshikazu | Outside leg trip | Juryo 1 East vs Juryo 6 East |
| September 1985 | Day 3 | Oshio Kenji | Frontal crush out | Juryo 7 East vs Juryo 10 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.