Go Player Ratings

JAAbout ratings

Morita Michihiro

Morita Michihiro (森田道博) has a rating of 1765, ranked 102 of 452 in professional play. Their highest rating so far is 1969 (September 9, 2007).

Morita Michihiro9 dan森田道博Nihon Ki-in Tokyo
Rating1765
Rank102
1-year change↑41
Peak rating1969
Last 10365-271
2026 record
12-7
Record since 1927
365-271
Win rate
.574

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

Professional ratingsFind a player

Rating history — professional

22 gamesHigh 1789Low 1697
63 gamesHigh 1789Low 1653
100 gamesHigh 1789Low 1653
378 gamesHigh 1969Low 1653

The “All” view starts at 2006; earlier years are used only to warm up the calculation and are not shown.

Recent games

Up to 20 games, newest first. “Change” is the rating movement.
DateOpponent and tournamentResultChange
September 17, 2026Fujii KokiKisei　as Black↓9
September 3, 2026Motoki KatsuyaHoninbo　Colors unknown↓2
August 24, 2026Sotoyanagi SebunOza　Colors unknown↓13
August 13, 2026Ko IsoKisei　Colors unknown↑27
July 27, 2026Miura TaroHoninbo　Colors unknown↑28
July 2, 2026Chang Ruei JieKisei　Colors unknown↑18
June 25, 2026Aoki KikuyoTengen　Colors unknown↓27
June 18, 2026Xiao YuyangJudan Preliminary A　as White↓8
June 11, 2026Nishi TakenobuKisei　Colors unknown↓13
May 28, 2026Yamamoto MasatoHoninbo　Colors unknown↑3
May 18, 2026Rin ShienKisei First Tournament Preliminary Final　Colors unknown↑17
May 11, 2026Cho ChienTengen　Colors unknown↑4
April 27, 2026Kato KeikoKisei First Tournament Preliminary Semifinal　Colors unknown↑4
April 9, 2026Terayama ReiGosei　Colors unknown↓10
March 30, 2026Ko ReibunTengen　Colors unknown↑10
March 19, 2026Cho ChikunKisei First Tournament Preliminary Quarterfinal　Colors unknown↑21
March 5, 2026Hino ShotaGosei　Colors unknown↑8
February 19, 2026Yoshida TomaKisei First Tournament Round 2　as White↑10
January 26, 2026Koda AkikoKisei First Tournament Preliminary Round 1　Colors unknown↑1
December 11, 2025Lee IshuMeijin　Colors unknown↓14

Head-to-head

Up to 10 opponents, most-played first. Records are from Morita Michihiro'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
Mimura Tomoyasu4-12.2502-32-4
Kobayashi Satoru3-6.3331-21-1
Cho Sonjin5-4.5560-23-0
Cho Chikun3-6.3330-22-3
Rin Shien3-5.3750-00-1
Yoda Norimoto3-5.3751-31-2
Rin Kaiho5-3.6252-22-1
Takanashi Seiken6-2.7500-00-0
Kudo Norio4-3.5712-12-1
Imamura Toshiya3-4.4292-10-2
O Meien2-5.2860-31-1
Yamada Kimio3-4.4291-21-2
Kobayashi Koichi4-3.5712-02-1
Takemiya Masaki5-1.8332-12-0
Yo Kagen1-5.1671-40-0
Cho Riyu2-4.3331-00-1
Mizokami Tomochika2-4.3330-21-1
Komatsu Hideki2-4.3330-10-1
Han Zenki2-4.3330-00-1
Kataoka Satoshi3-3.5001-11-2
Suzuki Shinji3-3.5000-00-0
Akiyama Jiro3-2.6000-11-1
Arimura Hiroshi2-3.4001-20-0
Doi Makoto2-3.4000-11-0
Honda Kunihisa3-2.6000-12-1
Ko Iun5-01.0000-00-0
Ko Iso1-4.2000-10-0
Xie Yimin2-3.4000-20-0
Oba Junya2-3.4000-10-0
Kono Rin2-3.4000-11-1
Kato Atsushi1-4.2000-01-1
Cho U2-3.4000-01-1
Kim Sujun2-3.4001-00-0
Yuki Satoshi2-3.4000-22-1
Nakaonoda Tomomi3-2.6000-11-0
Ryu Shikun1-4.2001-20-1
Sakai Takeshi4-1.8003-01-0

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
202612-7.632
202512-10.545
202410-9.526
202312-10.545
20227-8.467
202111-9.550
20206-9.400
201919-7.731
20186-13.316
201722-11.667
201621-9.700
201511-11.500
20144-5.444
20135-7.417
20127-5.583
20114-9.308
20104-6.400
20092-2.500
20084-10.286
200715-5.750
200615-8.652
200514-10.583
200412-10.545
200316-9.640
200216-8.667
20000-2.000
19997-6.538
19986-2.750
19970-2.000
19965-5.500
19956-10.375
199414-7.667
199315-3.833
19929-7.563
199110-8.556
19907-4.636
19898-2.800
19885-2.714
19873-1.750
19860-1.000
19853-2.600
Total365-271.574

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