Head-to-head · 16 bouts
Dejima Takeharu and Iwakiyama Ryuta have met 16 times in recorded sumo. they are level at 8–8.
Dejima Takeharu has won with: frontal force out (6), thrust down (1), frontal push out (1).
Iwakiyama Ryuta has won with: frontal force out (4), frontal crush out (2), frontal push out (1), hand pull down (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| November 2002 | Day 12 | Iwakiyama Ryuta | Frontal crush out | Maegashira 10 East vs Maegashira 11 West |
| March 2004 | Day 9 | Dejima Takeharu | Thrust down | Maegashira 2 East vs Maegashira 5 West |
| May 2004 | Day 8 | Dejima Takeharu | Frontal force out | Maegashira 6 West vs Maegashira 3 West |
| July 2004 | Day 7 | Dejima Takeharu | Frontal force out | Maegashira 4 West vs Maegashira 1 West |
| March 2005 | Day 3 | Dejima Takeharu | Frontal force out | Komusubi 1 East vs Maegashira 5 East |
| May 2005 | Day 5 | Dejima Takeharu | Frontal push out | Maegashira 6 East vs Maegashira 4 West |
| November 2005 | Day 15 | Iwakiyama Ryuta | Frontal push out | Maegashira 4 West vs Maegashira 3 West |
| January 2006 | Day 7 | Iwakiyama Ryuta | Frontal force out | Maegashira 5 East vs Maegashira 6 West |
| March 2006 | Day 15 | Dejima Takeharu | Frontal force out | Maegashira 4 West vs Maegashira 3 West |
| July 2006 | Day 12 | Iwakiyama Ryuta | Frontal force out | Maegashira 10 West vs Maegashira 6 West |
| March 2007 | Day 6 | Dejima Takeharu | Frontal force out | Maegashira 8 East vs Maegashira 11 East |
| March 2008 | Day 9 | Dejima Takeharu | Frontal force out | Maegashira 9 East vs Maegashira 6 West |
| May 2008 | Day 2 | Iwakiyama Ryuta | Frontal crush out | Maegashira 10 East vs Maegashira 11 East |
| July 2008 | Day 2 | Iwakiyama Ryuta | Hand pull down | Maegashira 9 West vs Maegashira 8 West |
| March 2009 | Day 4 | Iwakiyama Ryuta | Frontal force out | Maegashira 9 East vs Maegashira 10 East |
| May 2009 | Day 8 | Iwakiyama Ryuta | Frontal force out | Maegashira 8 East vs Maegashira 12 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.