Go Player Ratings

JAAbout ratings

Kobayashi Chizu

Kobayashi Chizu (小林千寿) has a rating of 1234, ranked 419 of 452 in professional play. Their highest rating so far is 1375 (October 15, 2015).

Kobayashi Chizu6 dan小林千寿Nihon Ki-in Tokyo
Rating1234
Rank419
1-year change↓38
Peak rating1375
Last 1050-139
2026 record
1-8
Record since 1927
50-139
Win rate
.265

The rating is calculated from published game results. It does not include any adjustment for playing Black.

Professional ratingsFind a player

Rating history — professional

8 gamesHigh 1268Low 1234
30 gamesHigh 1298Low 1234
51 gamesHigh 1334Low 1234
106 gamesHigh 1375Low 1234

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)

5 gamesHigh 1326Low 1305
21 gamesHigh 1326Low 1268
35 gamesHigh 1369Low 1268
65 gamesHigh 1511Low 1268

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: 1305 (#79)

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
DateOpponent and tournamentResultChange
August 6, 2026Osawa NarumiWomen's Kisei　Colors unknown↓4
May 25, 2026Inaba TakahiroOza　Colors unknown↓2
May 11, 2026Izawa AkinoTengen　Colors unknown↓10
April 20, 2026Mimura KaoriHoninbo　Colors unknown↓12
April 9, 2026Toyoda HirohitoGosei　Colors unknown↓3
March 12, 2026Mori ChisakiWomen's Honinbo Preliminary Final　as White↓3
March 5, 2026Shoji KazukoGosei　Colors unknown↑3
February 12, 2026Kobayashi IzumiJudan　Colors unknown↓4
February 9, 2026Saga ShuntaroKisei First Tournament Preliminary Round 1　Colors unknown↓6
December 8, 2025Chen BoshaoMeijin　Colors unknown↓4
December 1, 2025Kuwabara YokoSenko Cup Women's Strongest Player Preliminary Round 1　Colors unknown↓7
October 30, 2025Izawa AkinoTeikei Cup Women's Legend Round 1　as Black↓7
October 16, 2025Komatsu HidekoWomen's Honinbo Preliminary Round 1　Colors unknown↑19
September 1, 2025Yanagihara SakiWomen's Kisei　Colors unknown↓3
July 31, 2025Kibe NatsukiWomen's Meijin　Colors unknown↓4
July 3, 2025Obuchi KotaroOza　Colors unknown↓1
June 19, 2025Onishi KenyaTengen　Colors unknown↓1
June 9, 2025Izawa AkinoWomen's Meijin　Colors unknown↑27
May 19, 2025Kono YukioTengen　Colors unknown↑7
March 31, 2025Suzuki YoshimichiJudan　Colors unknown↓4

Head-to-head

Up to 10 opponents, most-played first. Records are from Kobayashi Chizu's point of view; jigo and no-result games are not counted as wins or losses. Only games from 1927 onward are included.
OpponentTotalAs BlackAs White
Ogawa Tomoko7-9.4384-53-4
Sugiuchi Kazuko9-5.6432-05-5
Honda Sachiko10-4.7141-49-0
Okada Yumiko5-4.5562-12-0
Chinen Kaori0-9.0000-30-3
Aoki Kikuyo1-7.1251-30-3
Kusunoki Teruko2-6.2502-20-3
Kobayashi Izumi1-7.1250-20-2
Kato Tomoko3-4.4293-10-1
Nakazawa Ayako2-4.3330-21-2
Kobayashi Reiko1-5.1670-31-2
Koyama Terumi3-3.5001-02-0
Yoshida Mika2-4.3330-32-1
Shinkai Hiroko4-2.6672-22-0
Komatsu Hideko5-1.8331-01-0
Nakayama Kaoru3-2.6001-10-1
Shoji Kazuko5-01.0000-02-0
Ito Tomoe2-3.4001-01-3
Izawa Akino1-4.2000-10-0
Kanno Naomi4-1.8000-01-0
Miyazaki Shimako2-3.4001-11-2
Tanimiya Ayako5-01.0003-00-0

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.

YearRecordWin rate
20261-8.111
20253-12.200
20247-16.304
20233-15.167
20222-11.154
20212-14.125
20204-13.235
20198-14.364
20185-8.385
20171-7.125
20164-12.250
20150-3.000
20051-1.500
20046-11.353
20039-15.375
20024-8.333
20011-2.333
20000-1.000
19982-8.200
19975-2.714
19961-2.333
19955-4.556
19940-6.000
199310-3.769
19924-4.500
199111-7.611
19901-6.143
19898-5.615
19884-4.500
19871-1.500
19860-2.000
19853-5.375
19845-2.714
19832-3.400
19824-4.500
19812-2.500
19804-7.364
19791-4.200
19784-6.400
19772-2.500
19765-2.714
19755-6.455
19741-01.000
19732-3.400
19721-1.500
19712-1.667
19701-01.000
19671-01.000
Total50-139.265

Calculated from games played between 1927 and 2026 (as of September 17, 2026).