Head-to-head · 12 bouts
Koboyama Daizo and Terao Tsunefumi have met 12 times in recorded sumo. Terao Tsunefumi leads 7–5.
Koboyama Daizo has won with: frontal force out (2), frontal push down (1), frontal thrust out (1), beltless armthrow (1).
Terao Tsunefumi has won with: frontal force out (4), over arm throw (1), frontal crush out (1), frontal thrust out (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| July 1985 | Day 7 | Terao Tsunefumi | Frontal force out | Maegashira 12 West vs Maegashira 7 West |
| January 1986 | Day 7 | Koboyama Daizo | Frontal push down | Maegashira 7 East vs Maegashira 12 West |
| March 1986 | Day 2 | Terao Tsunefumi | Frontal force out | Maegashira 8 East vs Maegashira 9 West |
| May 1986 | Day 6 | Koboyama Daizo | Frontal thrust out | Maegashira 11 East vs Maegashira 4 West |
| July 1986 | Day 9 | Terao Tsunefumi | Over arm throw | Maegashira 7 East vs Maegashira 12 East |
| January 1987 | Day 3 | Terao Tsunefumi | Frontal crush out | Maegashira 9 West vs Maegashira 4 West |
| March 1987 | Day 12 | Terao Tsunefumi | Frontal force out | Maegashira 6 East vs Maegashira 7 East |
| May 1987 | Day 13 | Terao Tsunefumi | Frontal thrust out | Maegashira 2 East vs Maegashira 1 West |
| July 1987 | Day 9 | Koboyama Daizo | Beltless armthrow | Maegashira 5 East vs Maegashira 7 West |
| September 1987 | Day 6 | Koboyama Daizo | Frontal force out | Maegashira 6 East vs Maegashira 12 West |
| March 1988 | Day 11 | Terao Tsunefumi | Frontal force out | Maegashira 2 East vs Maegashira 3 West |
| May 1988 | Day 9 | Koboyama Daizo | Frontal force out | Maegashira 11 East vs Maegashira 6 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.