Head-to-head · 12 bouts
Gagamaru Masaru and Okinoumi Ayumi have met 12 times in recorded sumo. Okinoumi Ayumi leads 9–3.
Gagamaru Masaru has won with: underarm throw (1), frontal crush out (1), frontal force out (1).
Okinoumi Ayumi has won with: frontal force out (3), frontal crush out (1), beltless armthrow (1), arm lock throw (1), twisting over arm throw (1).
| Tournament | Day | Winner | Technique | Ranks |
|---|---|---|---|---|
| January 2007 | Day 10 | Gagamaru Masaru | Underarm throw | Makushita 21 East vs Makushita 24 West |
| September 2007 | Day 1 | Okinoumi Ayumi | Frontal crush out | Makushita 48 East vs Makushita 47 West |
| January 2009 | Day 9 | Okinoumi Ayumi | Beltless armthrow | Makushita 1 East vs Makushita 13 East |
| July 2009 | Day 3 | Okinoumi Ayumi | Arm lock throw | Makushita 4 East vs Makushita 5 West |
| November 2009 | Day 11 | Okinoumi Ayumi | Twisting over arm throw | Juryo 14 East vs Juryo 5 West |
| January 2010 | Day 14 | Gagamaru Masaru | Frontal crush out | Juryo 2 East vs Juryo 13 East |
| November 2011 | Day 15 | Okinoumi Ayumi | Rear push out | Maegashira 1 East vs Maegashira 3 West |
| May 2014 | Day 15 | Gagamaru Masaru | Frontal force out | Maegashira 14 East vs Maegashira 9 West |
| July 2014 | Day 9 | Okinoumi Ayumi | Frontal force out | Maegashira 13 East vs Maegashira 15 East |
| July 2015 | Day 8 | Okinoumi Ayumi | Frontal force out | Maegashira 5 East vs Maegashira 6 West |
| March 2016 | Day 12 | Okinoumi Ayumi | Frontal force out | Maegashira 2 East vs Maegashira 10 East |
| July 2017 | Day 11 | Okinoumi Ayumi | Over arm throw | Maegashira 16 East vs Maegashira 9 West |
Every bout between the two that is in this database (March 1958 onwards). Technique names follow NHK WORLD-JAPAN.