Iwata Hajime
Iwata Hajime (岩田一) has a rating of 1490. Their highest rating so far is 1518 (February 27, 2013).
Retired. The rating shown is the rating at retirement.
- 2013 record
- 4-4
- Record since 1927
- 56-89
- Win rate
- .386
Rating at retirement (not included in the rating list)
The rating is calculated from published game results. It does not include any adjustment for playing Black.
Professional ratingsFind a player
Rating history — professional
The “All” view starts at 2006; earlier years are used only to warm up the calculation and are not shown.
Recent games
| Date | Opponent and tournament | Result | Change |
|---|---|---|---|
| May 24, 2013 | Ichiriki RyoOza Colors unknown | Loss | ↓5 |
| February 28, 2013 | Motoki KatsuyaGosei Preliminary B as Black | Loss | ↓11 |
| February 27, 2013 | Ko ReibunAgon Kiriyama Cup Colors unknown | Loss | ↓12 |
| February 27, 2013 | Osawa NarumiAgon Kiriyama Cup Colors unknown | Win | ↑14 |
| February 13, 2013 | Nagashima KozueAgon Kiriyama Cup Colors unknown | Win | ↑14 |
| February 7, 2013 | Ueda TakashiGosei Colors unknown | Win | ↑20 |
| February 2, 2013 | Ohashi HirofumiMeijin Colors unknown | Loss | ↓8 |
| January 17, 2013 | Mitsunaga JunzoGosei Colors unknown | Win | ↑19 |
| December 20, 2012 | Takemiya YokoHoninbo Colors unknown | Loss | ↓14 |
| December 8, 2012 | Nagahara YoshiakiMeijin Colors unknown | Win | ↑11 |
| December 1, 2012 | Iguchi ToyohideJudan Colors unknown | Loss | ↓10 |
| October 27, 2012 | Kawai ShojiJudan Colors unknown | Win | ↑16 |
| September 22, 2012 | Mannami KanaJudan Colors unknown | Win | ↑20 |
| May 19, 2012 | Yamada ShinjiMeijin Colors unknown | Loss | ↓9 |
| May 12, 2012 | Umezawa YukariMeijin Colors unknown | Win | ↑18 |
| March 31, 2012 | Kusunoki TerukoTengen Colors unknown | Loss | ↓24 |
| March 10, 2012 | Koyama HideoTengen Colors unknown | Win | ↑7 |
| February 24, 2012 | Chino TadahikoGosei Colors unknown | Loss | ↓12 |
| February 23, 2012 | Sakai TakeshiGosei Colors unknown | Loss | ↓8 |
| February 10, 2012 | Kato TomokoMeijin Colors unknown | Win | ↑16 |
Head-to-head
| Opponent | Total | As Black | As White |
|---|---|---|---|
| Hoshino Masaki | 1-3.250 | 0-0 | 0-0 |
| Ohira Shuzo | 2-1.667 | 1-1 | 1-0 |
| Otake Hideo | 0-3.000 | 0-2 | 0-0 |
| Takano Hideki | 0-2.000 | 0-0 | 0-0 |
| Seki Tatsuya | 0-2.000 | 0-0 | 0-0 |
| Onda Yasuhiko | 1-1.500 | 0-0 | 1-0 |
| Matsubara Taisei | 1-1.500 | 0-0 | 0-0 |
| Tei Meiko | 1-1.500 | 0-0 | 0-0 |
| Osawa Narumi | 2-01.000 | 0-0 | 0-0 |
| Kitamura Hiroshi | 1-1.500 | 0-1 | 1-0 |
Record by year
Counted by calendar year, January to December (default wins and losses are included; jigo and no-result games are not). Only games from 1927 onward are counted, so these totals do not match the career records published by the two Ki-in.
| Year | Record | Win rate |
|---|---|---|
| 2013 | 4-4 | .500 |
| 2012 | 7-7 | .500 |
| 2011 | 3-7 | .300 |
| 2010 | 0-1 | .000 |
| 2009 | 0-2 | .000 |
| 2008 | 0-2 | .000 |
| 2007 | 0-3 | .000 |
| 2006 | 5-3 | .625 |
| 2005 | 5-11 | .313 |
| 2004 | 9-9 | .500 |
| 2003 | 6-10 | .375 |
| 2002 | 1-1 | .500 |
| 1999 | 0-1 | .000 |
| 1995 | 1-1 | .500 |
| 1993 | 1-2 | .333 |
| 1992 | 2-3 | .400 |
| 1991 | 5-2 | .714 |
| 1990 | 1-1 | .500 |
| 1989 | 1-4 | .200 |
| 1988 | 0-2 | .000 |
| 1987 | 1-0 | 1.000 |
| 1986 | 0-1 | .000 |
| 1983 | 1-1 | .500 |
| 1982 | 0-2 | .000 |
| 1981 | 0-2 | .000 |
| 1980 | 0-1 | .000 |
| 1979 | 1-1 | .500 |
| 1978 | 1-1 | .500 |
| 1977 | 0-1 | .000 |
| 1976 | 0-1 | .000 |
| 1974 | 1-2 | .333 |
| Total | 56-89 | .386 |
Calculated from games played between 1927 and 2026 (as of September 17, 2026).