Ratings

MITANI Koutarou (Japan)

Japanese name(s): 三谷光太郎

Ratings history

2025-09-29
2025-08-31
2025-07-31
2025-06-30
2025-05-31
2025-04-30
2025-03-31
2025-02-28
2025-01-31
2024-12-31
2024-06-30
2023-12-31
2023-06-30
2022-12-31
2022-06-30
2021-12-31
2021-06-30
2020-12-31
2020-06-30
2019-12-31
2019-06-30
1961
1960
1959
1956
1931
1930
1929
1937
1937
1936
1937
1939
1924
1859
1826
1824
1800
1834
1833
1800
1715
Show the ratings ⇩

 

28 tournaments
179 results
Player ID: 14875
Rated T293 in Japan and T345 in Asia&Oceania&Africa and T411 in the World
Latest rating: 1961
2025-03-22: 167_Shinagawa_open(Japan)
SHIMIZU Goharu36-28MITANI Koutarou
NAKAJIMA Tetsuya51-13MITANI Koutarou
MITANI Koutarou48-16NAKAMURA Isao
MITANI Koutarou43-21HIRASAWA Teruto
MITANI Koutarou34-30TANIDA Kunihiko
FUJII Renya46-18MITANI Koutarou
2022-03-21: 42_Meijin(Japan)
MITANI Koutarouwon againstNAGASHIMA Yoshitaka
SUZURIKAWA Toshimasawon againstMITANI Koutarou
SUGASE Takahirowon againstMITANI Koutarou
MITANI Koutarouwon againstITO Yuusaku
ASOU Daisukewon againstMITANI Koutarou
SOBAJIMA Daichiwon againstMITANI Koutarou
ODA Akariwon againstMITANI Koutarou
2022-03-20: 42_Meijin_students(Japan)
NAKAOKA Akinori33-31MITANI Koutarou
SUZUKI Akihito41-23MITANI Koutarou
MITANI Koutarou45-19NAGAHATA Reiho
MITANI Koutarou35-29OTANI Akimoto
OGURA Ryutaro39-25MITANI Koutarou
2021-07-18: 41_Meijin(Japan)
AIHARA Shigeaki37-27MITANI Koutarou
MITANI Koutarou35-29NISHIBAYASHI Touya
MITANI Koutarou44-20TAYAMA Tsubasa
FUJII Renya44-20MITANI Koutarou
MITANI Koutarou47-17OKUDAIRA Fuyumi
MURAKAMI Takeshi56-08MITANI Koutarou
2020-02-02: Tokyo_expert_games(Japan)
HORII Kunitoshi44-20MITANI Koutarou
MIYAMOTO Taketora42-22MITANI Koutarou
MITANI Koutarou46-18HARAKUCHI Mahiro
MITANI Koutarou41-23KIMURA Sato
NAKAJIMA Tetsuya39-25MITANI Koutarou
MITANI Koutarou34-30TATSUMI-IIJIMA Yukiko
2020-01-05: 116_Kyoto_standings(Japan)
IWAKURA Hiroaki48-16MITANI Koutarou
HORIUCHI Soutarou48-16MITANI Koutarou
MITANI Koutarou48-16NAGASHIMA Yoshitaka
TSUCHIGANE Link43-21MITANI Koutarou
MITANI Koutarou35-29KAWAMURA Kiu
MITANI Koutarou34-30OGINO Takeru
2020-01-04: Shinagawa_open(Japan)
MITANI Koutarou56-08TAMAKI Shingo
MITANI Koutarou34-30TANIDA Kunihiko
MITANI Koutarou46-18FURUSAWA Yuuma
MITANI Koutarou33-31KOMATSU Kanaharu
NAKAMORI Hiroki40-24MITANI Koutarou
MITSUYA Nobuaki37-27MITANI Koutarou
2019-12-28: 151_Shinagawa_open(Japan)
MITANI Koutarou62-02AKINAGA Yuto
MITANI Koutarou39-25TAKYAMA Kasa
MITANI Koutarou44-20TSUCHIGANE Taishi
NAKAJIMA Tetsuya61-03MITANI Koutarou
KIYONOBU Kenta55-09MITANI Koutarou
MITANI Koutarou36-28TANAKA Chikako
2019-12-14: 144_Chiyarenshi_open(Japan)
FUJII Renya48-16MITANI Koutarou
KASHIMA Reisuke40-24MITANI Koutarou
MITANI Koutarou49-15MATSUZAKA Daiki
HATEKEYAMA Shiyu38-26MITANI Koutarou
KANEKO Hikaru39-25MITANI Koutarou
MITANI Koutarou36-28TANAKA Chikako
2019-10-20: 48_All_Japan_Tokyo_prelim_2(Japan)
SAKAGUCHI Kazuhiro35-29MITANI Koutarou
HISHIYAMA Yuichi36-28MITANI Koutarou
MIYAMOTO Taketora39-25MITANI Koutarou
MITANI Koutarou34-30OHUCHI Yasuhiro
MITANI Koutarou45-19YAMAZAKI Ken
MITANI Koutarouwon againstKOMAGATA Masayuki
2019-10-06: 48_All_Japan_Tokyo_prelim_1(Japan)
SAKAGUCHI Kazuhiro40-24MITANI Koutarou
IWATA Hiroyukiwon againstMITANI Koutarou
NANASE Yuuma56-08MITANI Koutarou
MITANI Koutarou34-30AKINAGA Yuto
MITANI Koutarou34-30TANIDA Kunihiko
2019-09-28: 142_Chiyarenshi_open_intermediate(Japan)
MITANI Koutarou35-29KODAMA Tomoyuki
MITANI Koutarou49-15SHIOSAWA Kousuke
MITANI Koutarou38-26MASUDA Tokuya
MITANI Koutarou53-11HOSAKA Azuma
MATSUYA Atsu43-21MITANI Koutarou
MITANI Koutarou34-30TAKAHASHI Shiu
2019-09-15: 9_team_Shinagama_open_3(Japan)
ITO Yuusaku39-25MITANI Koutarou
KATSUHISA Tomohiko44-20MITANI Koutarou
MITANI Koutarou56-08ENDO Mayukii
MITANI Koutarou37-27HASHIMOTO Meiko
WATANABE Kiriya34-30MITANI Koutarou
ISHIBARA Kotaro33-31MITANI Koutarou
2019-08-18: 197_Nagareyama_open(Japan)
MITANI Koutarou41-23TANIHARA Hinata
HASEGAWA Takeshi45-19MITANI Koutarou
ARAI Toshiko35-29MITANI Koutarou
ENDO Yoshiki33-31MITANI Koutarou
MITANI Koutarou37-27KASAI Yoshiyuki
MITANI Koutarou44-20FUJII Renya
2019-08-10: 10_Tokyo_open(Japan)
MIYAMOTO Taketora42-22MITANI Koutarou
MITANI Koutarou53-11TAKYAMA Kasa
TODOKORO Tae54-10MITANI Koutarou
TAKAHASHI Hisashi48-16MITANI Koutarou
HASHIMOTO Meiko37-27MITANI Koutarou
TAKIGAWA Mitsuaki47-17MITANI Koutarou
2019-07-20: 148_Shinagawa_open(Japan)
MITSUYA Nobuaki45-19MITANI Koutarou
KOBAYASHI Ayumi35-29MITANI Koutarou
MITANI Koutarou34-30NODA Yuna
MITANI Koutarou38-26TANAKA Chikako
MITANI Koutarou41-23YUUKI Kokujin
MITANI Koutarou35-29HASHIMOTO Meiko
2019-07-06: 140_Chiyarenshi_open_intermediate(Japan)
OGINO Takeru40-24MITANI Koutarou
MITANI Koutarou37-27HACHIHATA Nobuyasu
TSUCHIGANE Taishi34-30MITANI Koutarou
MITANI Koutarou43-21YAMAZAKI Ken
TAKAHASHI Shiu41-23MITANI Koutarou
MITANI Koutarou45-19FUJII Renya
2019-06-22: 147_Shinagawa_open(Japan)
MITANI Koutarou57-07ONUKI Yutaka
TATSUMI-IIJIMA Yukiko44-20MITANI Koutarou
TSUCHIGANE Taishi35-29MITANI Koutarou
HISHIYAMA Yuichi46-18MITANI Koutarou
MITANI Koutarou48-16KOMATSU Kanaharu
SAITO Aya45-19MITANI Koutarou
2019-05-25: 146_Shinagawa_open(Japan)
MATSUYA Atsu42-22MITANI Koutarou
MITANI Koutarou47-17KAWAKAMI Eiichi
TATSUMI-IIJIMA Yukiko52-12MITANI Koutarou
ITO Kenshun40-24MITANI Koutarou
MITANI Koutarou37-27MIYAMOTO Sukehiro
KANEKO Hikaru42-22MITANI Koutarou
2019-05-18: 138_Chiyarenshi_open_intermediate(Japan)
MITANI Koutarouwon againstMIYAMOTO Taketora
TSUCHIGANE Taishi41-23MITANI Koutarou
TAKAHASHI Shiu43-21MITANI Koutarou
YOSHIDA Kenjirou43-21MITANI Koutarou
MITANI Koutarou43-21KAZUSUKE Rino
MITANI Koutarou34-30TAKA Hirosuke
2019-05-03: 1_Tsuchiura_battle(Japan)
KOBAYASHI Ayumi35-29MITANI Koutarou
USHIRO Hideaki48-16MITANI Koutarou
MITANI Koutarou32-32NAKAMURA Rintaro
KOBAYASHI Makoto40-24MITANI Koutarou
MITANI Koutarou37-27ISHII Kanari
MITANI Koutarou46-18TORIU Yuuki
MITANI Koutarou39-25TSUCHIGANE Link
MITANI Koutarou33-31KITAMURA Momona
MITANI Koutarou45-19WADA Chiaki
TOKIWA Shuto41-23MITANI Koutarou
KANO Chihiro40-24MITANI Koutarou
KOBAYASHI Manabu41-23MITANI Koutarou
MITANI Koutarou43-21IZUMI Shinya
MITANI Koutarou43-21SUZUKI Fujio
MITANI Koutarou44-20HACHIHATA Nobuyasu
WADA Masaki61-03MITANI Koutarou
HORIUCHI Keiko42-22MITANI Koutarou
MITANI Koutarou43-21TORIU Yuuki
2019-04-28: 8_team_Shinagawa_open_3(Japan)
MITANI Koutarou41-23DE MARCO Wesley
MITANI Koutarou35-29TAKAYANA Seizou
MITANI Koutarou34-30KOBAYASHI Ayumi
HATEKEYAMA Shiyu42-22MITANI Koutarou
MITANI Koutarou40-24KATSUHISA Tomohiko
SATO Takahiro35-29MITANI Koutarou
2019-04-13: 137_Chiyarenshi_open_intermediate(Japan)
HIEDA Shigemasa46-18MITANI Koutarou
MITANI Koutarou48-16MIYAMOTO Taketora
MITANI Koutarou45-19TAKAHASHI Akinari
MITANI Koutarou40-24TSUCHIGANE Link
ITSUKI Hayashi51-13MITANI Koutarou
HATEKEYAMA Shiyu38-26MITANI Koutarou
2019-04-07: 15_Yokohama_open(Japan)
MATSUZAKA Daiki50-14MITANI Koutarou
MITANI Koutarou51-13SHAKUTAKE Sakiyo
MITANI Koutarou52-12NAMIKI Airi
MITANI Koutarou49-15KAWARADA Seiji
MITANI Koutarou34-30YAMAGUCHI Hironobu
TOKIWA Shuto45-19MITANI Koutarou
2019-03-30: 145_Shinagawa_open(Japan)
TSUCHIGANE Taishi43-21MITANI Koutarou
HORIUCHI Soutarou36-28MITANI Koutarou
MITANI Koutarou36-28KODAMA Tomoyuki
MITANI Koutarou43-21ONO Taiga
MITANI Koutarou53-11TAKAHASHI Akinari
SATO Takahiro34-30MITANI Koutarou
2019-03-09: 136_Chiyarenshi_open_intermedaite(Japan)
TAKAKURA Shoukichi43-21MITANI Koutarou
TSUCHIGANE Taishi59-05MITANI Koutarou
MITANI Koutarou34-30NAKAYAMA Takahiro
MIKAMI Ruka36-28MITANI Koutarou
KODAMA Tomoyuki37-27MITANI Koutarou
KASAI Yoshiyuki46-18MITANI Koutarou
2019-02-23: 144_Shinagawa_open(Japan)
OSATO Suguru39-25MITANI Koutarou
KANEKO Hikaru36-28MITANI Koutarou
MITANI Koutarou35-29TAKAHASHI Akinari
KAZUSUKE Rino35-29MITANI Koutarou
FUJII Renya51-13MITANI Koutarou
DE MARCO Wesley35-29MITANI Koutarou
2019-01-05: Shinagawa_open_2019(Japan)
KUWAHARA Shuhei44-20MITANI Koutarou
HASHIMOTO Meiko37-27MITANI Koutarou
MITANI Koutarou52-12NAKAYAMA Takahiro
KIYONOBU Kenta40-24MITANI Koutarou
KIMURA Sato42-22MITANI Koutarou
MITANI Koutarou36-28SHINDO Aoba