Head-to-head · 20 bouts
Aobajo Yukio and Washuyama Yoshikazu have met 20 times in recorded sumo. Washuyama Yoshikazu leads 13–7.
Aobajo Yukio has won with: frontal push out (2), thrust down (1), frontal force out (1), slap down (1), beltless armthrow (1).
Washuyama Yoshikazu has won with: frontal force out (7), frontal push out (3), frontal push down (1), pulling inside ankle sweep (1), pulling over armthrow (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| September 1972 | Day 8 | Aobajo Yukio | Thrust down | Juryo 9 East vs Juryo 10 West |
| November 1972 | Day 5 | Washuyama Yoshikazu | Frontal push out | Juryo 10 East vs Juryo 12 East |
| January 1973 | Day 9 | Washuyama Yoshikazu | Frontal push out | Juryo 7 East vs Juryo 4 West |
| July 1974 | Day 11 | Washuyama Yoshikazu | Frontal push out | Juryo 1 East vs Juryo 5 West |
| July 1975 | Day 14 | Aobajo Yukio | Frontal force out | Maegashira 5 East vs Maegashira 12 West |
| January 1976 | Day 1 | Washuyama Yoshikazu | Frontal force out | Maegashira 6 East vs Maegashira 5 West |
| March 1976 | Day 2 | Washuyama Yoshikazu | Frontal push down | Komusubi 1 East vs Maegashira 2 West |
| July 1976 | Day 5 | Washuyama Yoshikazu | Frontal force out | Maegashira 1 West vs Sekiwake 1 West |
| September 1976 | Day 13 | Washuyama Yoshikazu | Pulling inside ankle sweep | Maegashira 1 East vs Maegashira 3 East |
| May 1977 | Day 15 | Aobajo Yukio | Slap down | Maegashira 4 West vs Maegashira 2 West |
| November 1977 | Day 7 | Washuyama Yoshikazu | Frontal force out | Maegashira 4 East vs Maegashira 8 East |
| September 1978 | Day 8 | Aobajo Yukio | Beltless armthrow | Maegashira 10 East vs Maegashira 6 West |
| November 1978 | Day 11 | Washuyama Yoshikazu | Pulling over armthrow | Maegashira 5 East vs Maegashira 11 East |
| January 1979 | Day 11 | Washuyama Yoshikazu | Frontal force out | Maegashira 7 East vs Maegashira 8 West |
| May 1979 | Day 3 | Aobajo Yukio | Frontal push out | Maegashira 13 West vs Maegashira 9 West |
| September 1979 | Day 10 | Aobajo Yukio | Frontal crush out | Maegashira 11 East vs Maegashira 14 West |
| March 1980 | Day 3 | Aobajo Yukio | Frontal push out | Maegashira 6 East vs Maegashira 12 East |
| July 1980 | Day 12 | Washuyama Yoshikazu | Frontal force out | Maegashira 13 East vs Maegashira 10 West |
| September 1980 | Day 4 | Washuyama Yoshikazu | Frontal force out | Maegashira 6 East vs Maegashira 11 East |
| July 1984 | Day 3 | Washuyama Yoshikazu | Frontal force out | Maegashira 11 West vs Maegashira 9 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.