Head-to-head · 16 bouts
Harumafuji Kohei and Kaisei Ichiro have met 16 times in recorded sumo. Harumafuji Kohei leads 16–0.
Harumafuji Kohei has won with: pulling over armthrow (5), over arm throw (4), frontal push down (2), underarm throw (2), rear push out (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| July 2011 | Day 12 | Harumafuji Kohei | Pulling over armthrow | Maegashira 5 East vs Ozeki 1 West |
| July 2012 | Day 13 | Harumafuji Kohei | Frontal push down | Maegashira 8 West vs Ozeki 2 West |
| September 2012 | Day 4 | Harumafuji Kohei | Pulling over armthrow | Ozeki 1 East vs Maegashira 1 West |
| November 2012 | Day 5 | Harumafuji Kohei | Pulling over armthrow | Maegashira 2 West vs Yokozuna 1 West |
| January 2013 | Day 7 | Harumafuji Kohei | Rear push out | Maegashira 3 West vs Yokozuna 1 West |
| September 2013 | Day 10 | Harumafuji Kohei | Over arm throw | Maegashira 4 West vs Yokozuna 1 West |
| March 2014 | Day 8 | Harumafuji Kohei | Over arm throw | Maegashira 3 East vs Yokozuna 1 West |
| July 2014 | Day 7 | Harumafuji Kohei | Frontal force out | Maegashira 3 East vs Yokozuna 1 West |
| November 2014 | Day 6 | Harumafuji Kohei | Over arm throw | Yokozuna 2 East vs Maegashira 4 East |
| January 2015 | Day 8 | Harumafuji Kohei | Frontal push down | Yokozuna 2 East vs Maegashira 5 East |
| March 2015 | Day 10 | Harumafuji Kohei | Underarm throw | Maegashira 6 West vs Yokozuna 1 West |
| January 2016 | Day 5 | Harumafuji Kohei | Underarm throw | Yokozuna 1 East vs Maegashira 3 West |
| May 2016 | Day 11 | Harumafuji Kohei | Pulling over armthrow | Yokozuna 2 East vs Komusubi 1 East |
| July 2016 | Day 12 | Harumafuji Kohei | Pulling over armthrow | Sekiwake 1 East vs Yokozuna 2 East |
| September 2016 | Day 1 | Harumafuji Kohei | Frontal push out | Yokozuna 1 East vs Komusubi 1 East |
| November 2016 | Day 2 | Harumafuji Kohei | Over arm throw | Yokozuna 1 East vs Maegashira 2 East |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.