Go Player Ratings

JAAbout ratings

Moriyama Naoki

Moriyama Naoki (森山直棋) has a rating of 1656. Their highest rating so far is 1815 (February 12, 2006).

Retired. The rating shown is the rating at retirement.

Moriyama Naoki9 dan森山直棋Kansai Ki-in
Rating1656
Rank—
1-year change—
Peak rating1815
Last 1084-79(1 by default)
2018 record
2-2
Record since 1927
84-79(1 jigo)
Win rate
.515

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

41 gamesHigh 1815Low 1621

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
February 23, 2018Torii YutaKisei First Tournament Preliminary Semifinal　Colors unknown↓18
February 15, 2018Mutsuura YutaKisei First Tournament Preliminary Semifinal　Colors unknown↓5
January 26, 2018Shimojima YoheiKisei First Tournament Preliminary Quarterfinal　Colors unknown↑13
January 12, 2018Kim PyonjunKisei First Tournament Preliminary Round 2　Colors unknown↑8
December 21, 2017Baba ShigeruKisei First Tournament Preliminary Quarterfinal　Colors unknown↑9
December 1, 2017Kunisawa HirotoKisei First Tournament Preliminary Round 1　Colors unknown↑8
November 30, 2017Ohashi NaruyaKisei First Tournament Preliminary Round 2　Colors unknown↑20
July 5, 2017Yokota ShigeakiOza Preliminary B　as Black↓18
May 31, 2017Furuya YutakaTengen Preliminary B　as Black↓18
April 12, 2017Nishi TakenobuMeijin Preliminary B　as Black↓22
March 1, 2017Hatanaka HoshinobuHoninbo Preliminary A　as White↑14
February 23, 2017Torii YutaKisei First Tournament Preliminary Semifinal　Colors unknown↓20
January 26, 2017Shimojima YoheiKisei First Tournament Preliminary Quarterfinal　Colors unknown↑19
January 18, 2017U BoiKansai Ki-in First Place Tournament Round 1　as Black↓11
January 12, 2017Kim PyonjunKisei First Tournament Preliminary Round 2　Colors unknown↑8
December 3, 2016Kikkawa HajimeKisei First Tournament Preliminary Round 2　Colors unknown↓22
December 1, 2016Kunisawa HirotoKisei First Tournament Preliminary Round 1　Colors unknown↑7
October 12, 2016Kiyonari TetsuyaTengen Preliminary A　as White↓10
September 14, 2016Onoda TakuyaOza Preliminary B　as White↑9
September 7, 2016Hara MasakazuMeijin Preliminary A　as Black↓24

Head-to-head

Up to 10 opponents, most-played first. Records are from Moriyama Naoki'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
Imamura Toshiya3-4.4292-01-3
Mimura Tomoyasu1-4.2001-10-2
O Rissei1-4.2000-11-3
Tei Meiko1-3.2500-21-1
Takao Shinji3-1.7501-11-0
Ryu Shikun2-2.5001-00-0
Kato Masao0-3.0000-20-1
Hasegawa Sunao2-1.6672-00-1
Yoda Norimoto2-1.6671-10-0
Ogata Masaki1-2.3331-10-1

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
20182-2.500
20176-5.545
20165-4.556
20152-1.667
20140-1.000
20130-0(1 jigo)－
20120-2.000
20101-01.000
20094-2.667
20080-4.000
20062-3.400
20059-4.692
20042-3.400
20034-01.000
20012-2.500
20002-3.400
19996-2.750
19980-1.000
19970-2.000
19952-3.400
19941-3.250
19934-2.667
19923-6.333
199112-4.750
19905-4.556
19891-2.333
19884-6.400
19871-01.000
19860-3.000
19851-2.333
19841-2.333
19832-1.667
Total84-79(1 jigo).515

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