Head-to-head · 22 bouts
Kokkai Futoshi and Iwakiyama Ryuta have met 22 times in recorded sumo. Kokkai Futoshi leads 13–9.
Kokkai Futoshi has won with: frontal force out (5), frontal push out (2), over arm throw (2), slap down (1), rear push out (1).
Iwakiyama Ryuta has won with: frontal force out (4), thrust down (2), frontal push out (1), arm lock throw (1), frontal crush out (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| March 2004 | Day 3 | Kokkai Futoshi | Frontal force out | Maegashira 9 West vs Maegashira 5 West |
| July 2004 | Day 11 | Kokkai Futoshi | Frontal force out | Maegashira 2 East vs Maegashira 1 West |
| September 2004 | Day 8 | Iwakiyama Ryuta | Frontal push out | Maegashira 2 East vs Maegashira 1 West |
| November 2004 | Day 14 | Kokkai Futoshi | Frontal force out | Maegashira 3 East vs Maegashira 2 West |
| March 2005 | Day 1 | Kokkai Futoshi | Frontal push out | Komusubi 1 East vs Maegashira 4 East |
| September 2005 | Day 15 | Kokkai Futoshi | Frontal force out | Maegashira 4 East vs Maegashira 2 West |
| November 2005 | Day 5 | Iwakiyama Ryuta | Frontal force out | Maegashira 6 West vs Maegashira 4 West |
| January 2006 | Day 9 | Iwakiyama Ryuta | Thrust down | Maegashira 5 East vs Maegashira 2 West |
| March 2006 | Day 14 | Kokkai Futoshi | Slap down | Maegashira 3 West vs Maegashira 1 West |
| May 2006 | Day 3 | Iwakiyama Ryuta | Arm lock throw | Maegashira 9 East vs Maegashira 6 West |
| July 2006 | Day 10 | Kokkai Futoshi | Frontal push out | Maegashira 10 West vs Maegashira 5 West |
| November 2006 | Day 10 | Kokkai Futoshi | Rear push out | Maegashira 1 West vs Komusubi 1 West |
| January 2007 | Day 11 | Kokkai Futoshi | Over arm throw | Maegashira 10 East vs Maegashira 5 West |
| March 2007 | Day 8 | Kokkai Futoshi | Over arm throw | Maegashira 7 East vs Maegashira 11 East |
| September 2007 | Day 7 | Iwakiyama Ryuta | Frontal force out | Maegashira 10 East vs Maegashira 12 East |
| January 2008 | Day 11 | Iwakiyama Ryuta | Thrust down | Maegashira 9 East vs Maegashira 13 East |
| July 2008 | Day 14 | Iwakiyama Ryuta | Frontal crush out | Maegashira 10 West vs Maegashira 9 West |
| March 2009 | Day 7 | Kokkai Futoshi | Hand pull down | Maegashira 10 East vs Maegashira 8 West |
| May 2009 | Day 12 | Kokkai Futoshi | Pulling over armthrow | Maegashira 8 East vs Maegashira 14 East |
| November 2009 | Day 13 | Kokkai Futoshi | Frontal force out | Maegashira 10 West vs Maegashira 4 West |
| January 2010 | Day 11 | Iwakiyama Ryuta | Frontal force out | Maegashira 9 East vs Maegashira 14 East |
| March 2010 | Day 8 | Iwakiyama Ryuta | Frontal force out | Maegashira 8 East vs Maegashira 14 East |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.