Head-to-head · 28 bouts
Taiho Koki and Tamanoumi Masahiro have met 28 times in recorded sumo. Taiho Koki leads 21–7.
Taiho Koki has won with: beltless armthrow (5), frontal force out (4), thrust down (2), frontal push out (2), frontal crush out (2).
Tamanoumi Masahiro has won with: frontal force out (2), inside leg trip (1), outside leg trip (1), underarm throw (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| January 1965 | Day 1 | Tamanoumi Masahiro | Inside leg trip | Yokozuna 1 East vs Komusubi 1 East |
| March 1965 | Day 3 | Taiho Koki | Frontal thrust out | Yokozuna 1 East vs Maegashira 3 East |
| May 1965 | Day 7 | Tamanoumi Masahiro | Outside leg trip | Yokozuna 1 East vs Komusubi 1 West |
| July 1965 | Day 8 | Tamanoumi Masahiro | Underarm throw | Sekiwake 1 West vs Yokozuna 1 West |
| September 1965 | Day 8 | Taiho Koki | Thrust down | Yokozuna 1 East vs Maegashira 1 West |
| November 1965 | Day 8 | Taiho Koki | Frontal push out | Yokozuna 2 East vs Maegashira 2 West |
| March 1966 | Day 6 | Taiho Koki | Frontal crush out | Yokozuna 2 East vs Maegashira 1 East |
| May 1966 | Day 13 | Taiho Koki | Frontal lift out | Yokozuna 1 East vs Sekiwake 1 West |
| July 1966 | Day 12 | Taiho Koki | Frontal force out | Yokozuna 1 East vs Sekiwake 1 West |
| September 1966 | Day 4 | Taiho Koki | Slap down | Yokozuna 1 East vs Sekiwake 1 East |
| November 1966 | Day 12 | Taiho Koki | Beltless armthrow | Yokozuna 1 East vs Ozeki 1 West |
| January 1967 | Day 12 | Taiho Koki | Thrust down | Yokozuna 1 East vs Ozeki 1 West |
| March 1967 | Day 12 | Taiho Koki | Beltless armthrow | Yokozuna 1 East vs Ozeki 1 West |
| May 1967 | Day 10 | Taiho Koki | Frontal push out | Yokozuna 1 East vs Ozeki 1 West |
| September 1967 | Day 11 | Taiho Koki | Beltless armthrow | Yokozuna 2 East vs Ozeki 1 West |
| November 1967 | Day 13 | Tamanoumi Masahiro | fusen | Yokozuna 1 East vs Ozeki 1 West |
| September 1968 | Day 14 | Taiho Koki | Beltless armthrow | Ozeki 1 West vs Yokozuna 1 West |
| November 1968 | Day 14 | Taiho Koki | Frontal push down | Yokozuna 1 East vs Ozeki 1 East |
| January 1969 | Day 14 | Taiho Koki | Beltless armthrow | Yokozuna 1 East vs Ozeki 1 East |
| May 1969 | Day 14 | Taiho Koki | Frontal force out | Ozeki 1 West vs Yokozuna 1 West |
| July 1969 | Day 12 | Taiho Koki | Over arm throw | Yokozuna 1 East vs Ozeki 2 West |
| September 1969 | Day 8 | Tamanoumi Masahiro | Hand pull down | Yokozuna 1 East vs Ozeki 2 West |
| March 1970 | Day 13 | Taiho Koki | Underarm throw | Yokozuna 2 East vs Yokozuna 1 West |
| May 1970 | Day 14 | Taiho Koki | Frontal crush out | Yokozuna 1 East vs Yokozuna 2 East |
| September 1970 | Day 14 | Tamanoumi Masahiro | Frontal force out | Yokozuna 2 East vs Yokozuna 1 West |
| November 1970 | Day 15 | Taiho Koki | Frontal force out | Yokozuna 1 East vs Yokozuna 1 West |
| January 1971 | Day 15 | Taiho Koki | Frontal force out | Yokozuna 1 East vs Yokozuna 1 West |
| March 1971 | Day 15 | Tamanoumi Masahiro | Frontal force out | Yokozuna 1 East vs Yokozuna 1 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.