| # | year | tournament |
|---|---|---|
| 1 | 2005 | 12th Agon-Kiriyama |
| 2 | 2007 | 32nd Shinjin-O |
| 3 | 2009 | 18th Ryusei |
| 4 | 2009 | 34th Meijin |
| 5 | 2010 | 35th Meijin |
| 6 | 2011 | 49th Judan |
| 7 | 2011 | 20th Ryusei |
| 8 | 2011 | 18th Agon-Kiriyama |
| 9 | 2011 | 37th Tengen |
| 10 | 2012 | 50th Judan |
| 11 | 2012 | 67th Honinbo |
| 12 | 2012 | 37th Gosei |
| 13 | 2012 | 60th Oza |
| 14 | 2012 | 38th Tengen |
| 15 | 2012 | 21st Ryusei |
| 16 | 2013 | 37th Kisei |
| 17 | 2013 | 25th Asian TV Cup |
| 18 | 2013 | 68th Honinbo |
| 19 | 2013 | 38th Gosei |
| 20 | 2013 | 38th Meijin |
| 21 | 2013 | 39th Tengen |
| 22 | 2013 | 61st Oza |
| 23 | 2014 | 38th Kisei |
| 24 | 2014 | 69th Honinbo |
| 25 | 2014 | 39th Gosei |
| 26 | 2014 | 21st Agon-Kiriyama |
| 27 | 2014 | 39th Meijin |
| 28 | 2015 | 39th Kisei |
| 29 | 2015 | 70th Honinbo |
| 30 | 2015 | 40th Gosei |
| 31 | 2015 | 40th Meijin |
| 32 | 2015 | 22nd Agon-Kiriyama |
| 33 | 2015 | 63rd Oza |
| 34 | 2015 | 41st Tengen |
| 35 | 2016 | 40th Kisei |
| 36 | 2016 | 54th Judan |
| # | year | tournament |
|---|---|---|
| 37 | 2016 | 71st Honinbo |
| 38 | 2016 | 41st Gosei |
| 39 | 2016 | 64th Oza |
| 40 | 2016 | 42nd Tengen |
| 41 | 2017 | 41st Kisei |
| 42 | 2017 | 64th NHK Cup |
| 43 | 2017 | 55th Judan |
| 44 | 2017 | 72nd Honinbo |
| 45 | 2017 | 42nd Gosei |
| 46 | 2017 | 42nd Meijin |
| 47 | 2017 | 65th Oza |
| 48 | 2017 | 43rd Tengen |
| 49 | 2018 | 65th NHK Cup |
| 50 | 2018 | 42nd Kisei |
| 51 | 2018 | 56th Judan |
| 52 | 2018 | 73rd Honinbo |
| 53 | 2018 | 66th Oza |
| 54 | 2018 | 44th Tengen |
| 55 | 2019 | 43rd Kisei |
| 56 | 2019 | 74th Honinbo |
| 57 | 2019 | 45th Tengen |
| 58 | 2020 | 67th NHK Cup |
| 59 | 2020 | 44th Kisei |
| 60 | 2020 | 75th Honinbo |
| 61 | 2020 | 45th Meijin |
| 62 | 2020 | 27th Agon-Kiriyama |
| 63 | 2021 | 45th Kisei |
| 64 | 2021 | 76th Honinbo |
| 65 | 2021 | 46th Gosei |
| 66 | 2021 | 46th Meijin |
| 67 | 2021 | 69th Oza |
| 68 | 2022 | 77th Honinbo |
| 69 | 2022 | 47th Gosei |
| 70 | 2022 | 70th Oza |
| 71 | 2022 | 31st Ryusei |
This gives the
Nihon Ki-in
count:
71 titles (in March 2023).
In 2017 Iyama won all seven major titles.
Iyama won several further events, such as