Shibusawa Machiko
Shibusawa Machiko (渋澤真知子) has a rating of 998, ranked 446 of 452 in professional play. Their highest rating so far is 1287 (October 1, 2009).
- 2026 record
- 0-7
- Record since 1927
- 18-173
- Win rate
- .094
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.
Rating history in the women's tournaments pool (for reference)
The “All” view starts at 2006; earlier years are used only to warm up the calculation and are not shown.
Ratings in other pools
Ratings for general play and for women's tournaments are calculated independently and do not affect each other.
- Women's tournaments: 1190 (#87)
Recent games
| Date | Opponent and tournament | Result | Change |
|---|---|---|---|
| August 27, 2026 | Yashiro KumikoWomen's Kisei Colors unknown | Loss | ↓2 |
| May 14, 2026 | Chen BoshaoOza Colors unknown | Loss | ±0 |
| April 16, 2026 | Yanai KazumaHoninbo Colors unknown | Loss | ↓1 |
| April 2, 2026 | Inaba TakahiroTengen Colors unknown | Loss | ↓1 |
| March 19, 2026 | Kobayashi IzumiGosei Colors unknown | Loss | ↓1 |
| March 2, 2026 | Yashiro KumikoJudan Colors unknown | Loss | ↓2 |
| January 22, 2026 | Kato KeikoKisei First Tournament Preliminary Round 1 Colors unknown | Loss | ↓3 |
| December 1, 2025 | Takayama NonokaSenko Cup Women's Strongest Player Preliminary Round 1 Colors unknown | Loss | ↓4 |
| November 17, 2025 | Kato YukiMeijin Colors unknown | Loss | ↓3 |
| October 9, 2025 | Kuwabara YokoWomen's Honinbo Preliminary Round 1 Colors unknown | Loss | ↓4 |
| August 21, 2025 | Yoshihara YukariWomen's Kisei Colors unknown | Loss | ↓3 |
| July 7, 2025 | Ishigure IkuroRyusei Colors unknown | Loss | ↓1 |
| June 12, 2025 | Kono MitsukiOza Colors unknown | Loss | ↓1 |
| June 5, 2025 | Okada ShinichiroGosei Colors unknown | Loss | ↓2 |
| May 29, 2025 | Kato KeikoWomen's Meijin Colors unknown | Loss | ↓4 |
| April 14, 2025 | Yanagihara SakiTengen Colors unknown | Loss | ↓1 |
| March 27, 2025 | Kobayashi IzumiHoninbo Colors unknown | Loss | ↓1 |
| March 13, 2025 | Kobayashi KoichiJudan Colors unknown | Loss | ↓1 |
| February 24, 2025 | Yamada ShinjiAgon Kiriyama Cup Colors unknown | Loss | ↓2 |
| February 20, 2025 | Cho KoharuMeijin Colors unknown | Loss | ↓6 |
Head-to-head
| Opponent | Total | As Black | As White |
|---|---|---|---|
| Yashiro Kumiko | 0-7.000 | 0-0 | 0-0 |
| Hoshiai Shiho | 0-5.000 | 0-0 | 0-0 |
| Kobayashi Izumi | 0-5.000 | 0-0 | 0-0 |
| Koda Akiko | 1-4.200 | 0-0 | 0-0 |
| Kuwabara Yoko | 0-5.000 | 0-0 | 0-0 |
| Yoshihara Yukari | 0-4.000 | 0-0 | 0-0 |
| Nagashima Kozue | 0-4.000 | 0-0 | 0-0 |
| Suzuki Isao | 0-4.000 | 0-0 | 0-0 |
| Osawa Narumi | 0-4.000 | 0-0 | 0-0 |
| Nakamura Kuniko | 3-1.750 | 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 |
|---|---|---|
| 2026 | 0-7 | .000 |
| 2025 | 1-13 | .071 |
| 2024 | 1-14 | .067 |
| 2023 | 0-17 | .000 |
| 2022 | 0-15 | .000 |
| 2021 | 2-14 | .125 |
| 2020 | 1-11 | .083 |
| 2019 | 2-14 | .125 |
| 2018 | 0-18 | .000 |
| 2017 | 5-16 | .238 |
| 2016 | 1-15 | .063 |
| 2015 | 2-14 | .125 |
| 2014 | 0-5 | .000 |
| 2013 | 0-8 | .000 |
| 2012 | 3-10 | .231 |
| 2011 | 1-9 | .100 |
| 2010 | 0-1 | .000 |
| 2009 | 2-2 | .500 |
| 2006 | 0-5 | .000 |
| 2005 | 4-11 | .267 |
| 2004 | 3-11 | .214 |
| 2003 | 1-11 | .083 |
| 2002 | 2-9 | .182 |
| Total | 18-173 | .094 |
Calculated from games played between 1927 and 2026 (as of September 17, 2026).