Head-to-head · 20 bouts
Tamanoshima Arata and Iwakiyama Ryuta have met 20 times in recorded sumo. Tamanoshima Arata leads 15–5.
Tamanoshima Arata has won with: frontal force out (7), hand pull down (3), slap down (3), underarm throw (1), head lock throw (1).
Iwakiyama Ryuta has won with: frontal force out (2), frontal push out (2), thrust down (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| January 2003 | Day 2 | Iwakiyama Ryuta | Frontal force out | Maegashira 8 East vs Maegashira 5 West |
| March 2003 | Day 9 | Tamanoshima Arata | Hand pull down | Maegashira 6 East vs Maegashira 4 West |
| January 2004 | Day 4 | Iwakiyama Ryuta | Frontal push out | Maegashira 2 East vs Sekiwake 1 West |
| March 2004 | Day 2 | Tamanoshima Arata | Slap down | Maegashira 5 West vs Maegashira 3 West |
| July 2004 | Day 10 | Tamanoshima Arata | Frontal force out | Maegashira 1 West vs Komusubi 1 West |
| September 2004 | Day 14 | Tamanoshima Arata | Frontal force out | Maegashira 2 East vs Maegashira 2 West |
| January 2005 | Day 8 | Tamanoshima Arata | Frontal force out | Maegashira 1 East vs Maegashira 3 East |
| May 2005 | Day 8 | Tamanoshima Arata | Hand pull down | Maegashira 1 East vs Maegashira 4 West |
| September 2005 | Day 13 | Tamanoshima Arata | Slap down | Maegashira 4 East vs Maegashira 8 West |
| January 2006 | Day 15 | Iwakiyama Ryuta | Frontal force out | Maegashira 5 East vs Komusubi 1 West |
| March 2006 | Day 9 | Iwakiyama Ryuta | Frontal push out | Maegashira 1 East vs Maegashira 3 West |
| July 2006 | Day 1 | Tamanoshima Arata | Frontal force out | Maegashira 10 East vs Maegashira 10 West |
| January 2007 | Day 8 | Tamanoshima Arata | Underarm throw | Maegashira 10 East vs Maegashira 14 East |
| March 2007 | Day 10 | Tamanoshima Arata | Frontal force out | Maegashira 11 East vs Maegashira 8 West |
| September 2007 | Day 5 | Tamanoshima Arata | Frontal force out | Maegashira 7 East vs Maegashira 10 East |
| January 2008 | Day 1 | Iwakiyama Ryuta | Thrust down | Maegashira 13 East vs Maegashira 13 West |
| May 2008 | Day 10 | Tamanoshima Arata | Frontal force out | Maegashira 11 East vs Maegashira 13 West |
| January 2009 | Day 6 | Tamanoshima Arata | Hand pull down | Maegashira 11 East vs Maegashira 15 East |
| November 2009 | Day 7 | Tamanoshima Arata | Head lock throw | Maegashira 7 East vs Maegashira 4 West |
| January 2010 | Day 4 | Tamanoshima Arata | Slap down | Maegashira 13 East vs Maegashira 14 East |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.