Head-to-head · 12 bouts
Zaonishiki Toshimasa and Ryumon Masakatsu have met 12 times in recorded sumo. Ryumon Masakatsu leads 8–4.
Zaonishiki Toshimasa has won with: hooking inner thigh throw (1), frontal force out (1), frontal push down (1), over arm throw (1).
Ryumon Masakatsu has won with: frontal crush out (2), thrust down (1), beltless armthrow (1), outside leg trip (1), frontal force out (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| July 1975 | Day 2 | Zaonishiki Toshimasa | Hooking inner thigh throw | Juryo 13 East vs Makushita 1 West |
| March 1976 | Day 7 | Ryumon Masakatsu | Thrust down | Juryo 13 East vs Juryo 9 West |
| July 1976 | Day 5 | Ryumon Masakatsu | Beltless armthrow | Juryo 11 East vs Juryo 4 West |
| January 1977 | Day 11 | Ryumon Masakatsu | Frontal crush out | Juryo 1 East vs Juryo 2 West |
| March 1977 | Day 9 | Ryumon Masakatsu | Outside leg trip | Maegashira 13 East vs Juryo 1 West |
| May 1977 | Day 14 | Ryumon Masakatsu | Frontal force out | Juryo 3 West vs Juryo 2 West |
| July 1977 | Day 12 | Zaonishiki Toshimasa | Frontal force out | Juryo 4 West vs Juryo 3 West |
| March 1978 | Day 10 | Ryumon Masakatsu | Frontal push out | Juryo 10 East vs Juryo 8 West |
| May 1978 | Day 11 | Ryumon Masakatsu | Over arm throw | Juryo 7 East vs Juryo 9 East |
| July 1978 | Day 8 | Zaonishiki Toshimasa | Frontal push down | Juryo 6 East vs Juryo 11 East |
| September 1978 | Day 15 | Ryumon Masakatsu | Frontal crush out | Juryo 8 East vs Juryo 9 East |
| November 1978 | Day 4 | Zaonishiki Toshimasa | Over arm throw | Juryo 6 East vs Juryo 12 East |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.