Ota Masahito
Ota Masahito (太田正人) has a rating of 1298.
Retired. The rating shown is the rating at retirement.
Ota Masahito太田正人Nihon Ki-in
Rating1298
Rank—
1-year change—
Peak rating—
Last 10LossLossLossLossLossLossLossLossLossLoss3-20
- 2004 record
- 0-5
- Record since 1927
- 3-20
- Win rate
- .130
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
Recent games
| Date | Opponent and tournament | Result | Change |
|---|---|---|---|
| August 26, 2004 | Furuta NaoyoshiHoninbo Colors unknown | Loss | ↓14 |
| July 8, 2004 | Yahata KoichiKisei Colors unknown | Loss | ↓8 |
| May 6, 2004 | Takabayashi MasahiroOza Colors unknown | Loss | ↓11 |
| April 1, 2004 | Mito YukariJudan Colors unknown | Loss | ↓14 |
| February 12, 2004 | Yanagawa HiromasaTengen Colors unknown | Loss | ↓11 |
| December 18, 2003 | Sano TakatsuguMeijin Colors unknown | Loss | ↓11 |
| August 13, 2003 | Iyama YutaHoninbo Colors unknown | Loss | ↓5 |
| June 26, 2003 | Matsuura HideoKisei Colors unknown | Loss | ↓15 |
| March 27, 2003 | Yanagawa HiromasaJudan Colors unknown | Loss | ↓12 |
| March 5, 2003 | Iwamaru TairaTengen Colors unknown | Loss | ↓12 |
| February 24, 2003 | Yamamoto KentaroAgon Kiriyama Cup Colors unknown | Loss | ↓13 |
| February 6, 2003 | Yamamoto KentaroOza 1st Preliminary Round 2 Colors unknown | Loss | ↓13 |
| January 15, 2003 | Furuta NaoyoshiOza 1st Preliminary Round 1 Colors unknown | Win | ↑18 |
| November 13, 2002 | Ko IsoKisei Preliminary Round 2 Colors unknown | Loss | ↓13 |
| October 23, 2002 | Nishimoto KinyaKisei Preliminary Colors unknown | Win | ↑18 |
| October 16, 2002 | Araki IsseiMeijin 1st Preliminary Round 2 Colors unknown | Loss | ↓9 |
| June 19, 2002 | Kirimoto KazuoHoninbo 1st Preliminary Round 1 Colors unknown | Loss | ↓16 |
| May 20, 2002 | Tsukuda AkikoRyusei 1st Preliminary (4 dan and below) Round 1 Colors unknown | Loss | ↓15 |
| March 6, 2002 | Mito YukariTengen 1st Preliminary Round 2 Colors unknown | Loss | ↓16 |
| February 25, 2002 | Furuta NaoyoshiAgon Kiriyama Cup 1st Preliminary Round 1 Colors unknown | Loss | ↓14 |
Head-to-head
| Opponent | Total | As Black | As White |
|---|---|---|---|
| Furuta Naoyoshi | 2-2.500 | 0-0 | 0-0 |
| Mito Yukari | 0-3.000 | 0-0 | 0-0 |
| Yanagawa Hiromasa | 0-2.000 | 0-0 | 0-0 |
| Yamamoto Kentaro | 0-2.000 | 0-0 | 0-0 |
| Matsuura Hideo | 0-1.000 | 0-0 | 0-0 |
| Tsukuda Akiko | 0-1.000 | 0-0 | 0-0 |
| Araki Issei | 0-1.000 | 0-0 | 0-0 |
| Takabayashi Masahiro | 0-1.000 | 0-0 | 0-0 |
| Kirimoto Kazuo | 0-1.000 | 0-0 | 0-0 |
| Yahata Koichi | 0-1.000 | 0-0 | 0-0 |
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 |
|---|---|---|
| 2004 | 0-5 | .000 |
| 2003 | 1-7 | .125 |
| 2002 | 2-6 | .250 |
| 2001 | 0-1 | .000 |
| 1970 | 0-1 | .000 |
| Total | 3-20 | .130 |
Calculated from games played between 1927 and 2026 (as of September 17, 2026).