Kasahara Reiko (笠原礼子)

Place: Tokyo, Japan

Rating: 1910.61, Std: 85.89, Rank: 931

First game: 2020-08-10, Last game: 2026-09-27

Top rating: 1910.61 (2026-09-27)

Games: 112, Wins: 25, Draws: 2, Losses: 85

Gy1: 23, Gy2: 44, Gy5: 89

66 Suiseisen Tournament 1st round
Date	2026-09-27		Rating	1910.61
Round	Color	Result	Opponent
1	Black	Win	Okada Akihiro	1904.61
2	Black	Win	Yamamoto Ousuke	2035.86
3	White	Win	Kawasumi Yuka	1744.01
4	Black	Win	Lu Yuyang	1961.16
43rd Kanto Championship
Date	2026-04-05		Rating	1871.46
Round	Color	Result	Opponent
4	Black	Draw	Suzuki Tetsuji	1787.96
5	White	Loss	Suzuki Yoshitaka	2083.13
6	White	Loss	Tamura Kazumasa	2342.68
43rd Shinei Tournament
Date	2026-03-29		Rating	1870.21
Round	Color	Result	Opponent
1	White	Loss	Yamamoto Ousuke	2065.34
2	Black	Win	Arima Daiki	1425.09
3	Black	Loss	Terabaru Wataru	1880.05
4	White	Win	Yoshikawa Takayuki	1809.25
5	White	Loss	Miyoshi Daisuke	1694.16
20th All Japan Championship
Date	2026-02-23		Rating	1867.85
Round	Color	Result	Opponent
1	Black	Loss	Fujita Maiko	2488.73
2	Black	Loss	Miyamoto Syunju	2340.96
3	Black	Loss	Yoshikawa Tomoki	2479.19
29th New Year (Mikami) Cup
Date	2026-01-11		Rating	1865.43
Round	Color	Result	Opponent
A1	Black	Loss	Iwano Fumio	2161.77
A2	White	Loss	Kishimoto Shogo	2217.90
A3	White	Loss	Lu Yuyang	1940.21
A4	Black	Win	Sakai Yuuki	1777.23
A5	Black	Win	Ito Midori	1875.83
1 1dan 2dan Tournament
Date	2025-11-30		Rating	1862.00
Round	Color	Result	Opponent
1	Black	Loss	Yoshikawa Takayuki	1817.49
2	Black	Loss	Hayashi Kohei	2092.60
3	Black	Win	Suzuki Mika	1708.99
65 Suiseisen Tournament final round
Date	2025-09-28		Rating	1860.22
Round	Color	Result	Opponent
1	Black	Loss	Iwano Fumio	2162.56
2	White	Loss	Kishimoto Shogo	2218.73
3	White	Loss	Nishizawa Aoi	2179.35
4	Black	Loss	Yoshikawa Tomoki	2432.98
5	White	Loss	Suenaga Daiki	2159.96
65 Suiseisen Tournament 1st round
Date	2025-09-15		Rating	1860.70
Round	Color	Result	Opponent
1	Black	Loss	Kishimoto Shogo	2217.27
2	White	Win	Komatsu Subaru	1941.67
3	Black	Win	Miyoshi Daisuke	1692.39
4	Black	Loss	Suenaga Daiki	2158.98
42nd Kanto Championship
Date	2025-06-28		Rating	1858.15
Round	Color	Result	Opponent
1	White	Loss	Ishitani Shin-ichi	2373.74
2	Black	Loss	Iwano Fumio	2177.82
3	Black	Loss	Maruta Hiroki	2273.44
42nd Shinei Tournament
Date	2025-03-30		Rating	1857.93
Round	Color	Result	Opponent
1	Black	Loss	Yoshikawa Tomoki	2360.54
2	White	Win	Suzuki Tetsuji	1800.04
3	Black	Loss	Tanaka Akito	2032.08
4	Black	Loss	Kishimoto Shogo	2200.07
5	White	Loss	Suzuki Yoshitaka	2039.05
28th New Year (Mikami) Cup
Date	2025-01-19		Rating	1860.00
Round	Color	Result	Opponent
A1	Black	Loss	Shimura Hiroki	2235.71
A2	Black	Loss	Hayashi Kohei	2087.65
A3	Black	Win	Suzuki Tetsuji	1795.88
A4	White	Win	Suzuki Mika	1738.49
64 Suiseisen Tournament 1st round
Date	2024-09-22		Rating	1857.88
Round	Color	Result	Opponent
1	Black	Loss	Yoshikawa Tomoki	2277.95
2	Black	Win	Ito Midori	1874.25
3	Black	Win	Suzuki Yoshitaka	2014.60
4	Black	Loss	Shimura Hiroki	2200.03
41st Kanto Championship
Date	2024-07-21		Rating	1849.55
Round	Color	Result	Opponent
4	Black	Loss	Maruta Hiroki	2265.44
5	White	Loss	Yoshikawa Tomoki	2255.67
6	Black	Loss	Fujikawa Masaki	2106.27
41st Shinei Tournament
Date	2024-04-21		Rating	1841.13
Round	Color	Result	Opponent
1	White	Loss	Shimura Hiroki	2165.60
2	Black	Win	Suzuki Tetsuji	1780.09
3	Black	Win	Aoyagi Toshiki	1801.21
4	White	Loss	Kishimoto Shogo	2211.94
5	White	Loss	Tomobe Katsuhiro	2133.66
27th New Year (Mikami) Cup
Date	2024-01-14		Rating	1827.05
Round	Color	Result	Opponent
A1	Black	Loss	Suenaga Daiki	2150.12
A2	Black	Loss	Tomobe Katsuhiro	2123.53
A3	White	Win	Nakamura Keigo	1805.24
A5	Black	Loss	Shimura Hiroki	2158.57
40th Shinei Tournament
Date	2023-04-09		Rating	1785.24
Round	Color	Result	Opponent
1	White	Loss	Kinoshita Osamu	2097.49
2	White	Loss	Shimura Hiroki	2167.08
3	White	Loss	Yoshikawa Tomoki	2149.59
4	White	Loss	Nakamura Keigo	1833.65
5	White	Win	Kato Shota	1997.48
26th New Year (Mikami) Cup
Date	2023-01-15		Rating	1772.79
Round	Color	Result	Opponent
A1	Black	Loss	Toyo Koryu	2205.03
A2	White	Win	Yamamoto Ousuke	2008.80
A3	White	Loss	Okada Akihiro	1924.51
A4	Black	Win	Yamada Eiji	1839.48
A5	White	Loss	Yoshimoto Yuta	2292.42
23 Renju Emperor Tournament Kanto area 1st round
Date	2022-11-06		Rating	1754.86
Round	Color	Result	Opponent
1	Black	Loss	Yokoyama Shota	2466.61
2	Black	Loss	Maruta Koji	2181.85
3	Black	Loss	Suzuki Yoshitaka	2007.54
4	White	Loss	Okada Akihiro	1919.53
62 Suiseisen Tournament 1st round
Date	2022-09-23		Rating	1746.34
Round	Color	Result	Opponent
1	Black	Loss	Okada Akihiro	1916.63
2	Black	Loss	Kishimoto Shogo	2171.05
3	Black	Draw	Ito Midori	1818.81
4	Black	Loss	Yamada Eiji	1844.88
39 Kanto Championship
Date	2022-07-31		Rating	1739.56
Round	Color	Result	Opponent
4	Black	Loss	Kato Yasuhiro	2053.85
5	White	Loss	Kawaai Hitoshi	2075.23
6	Black	Loss	Fukazawa Shingo	1818.53
39 Kanto Shineisen Tournament
Date	2022-04-10		Rating	1733.66
Round	Color	Result	Opponent
1	Black	Loss	Tanaka Shotaro	2304.21
2	White	Loss	Suzuki Yoshitaka	2020.30
3	White	Loss	Kishimoto Shogo	2160.28
4	Black	Loss	Fujikawa Masaki	2140.94
22 Renju Emperor Tournament Kanto area 1st round
Date	2021-11-21		Rating	1731.93
Round	Color	Result	Opponent
1	Black	Loss	Fujikawa Masaki	2168.51
2	Black	Loss	Tanizaki Ryusuke	2045.73
3	Black	Loss	Fujita Maiko	2379.13
4	Black	Loss	Kato Yasuhiro	2056.65
38 Kanto Championship
Date	2021-08-08		Rating	1735.00
Round	Color	Result	Opponent
4	Black	Loss	Li Haoyang	1981.05
5	White	Win	Okada Akihiro	1909.48
6	Black	Loss	Ono Takayuki	2408.43
38 Kanto Shineisen Tournament
Date	2021-04-11		Rating	1731.64
Round	Color	Result	Opponent
1	Black	Loss	Suenaga Daiki	2271.02
2	Black	Win	Shibata Satoru	1768.44
3	Black	Loss	Shimura Hiroki	2035.27
4	Black	Loss	Kawaai Hitoshi	2019.23
5	Black	Loss	Yoshimoto Yuta	2246.77
24th New Year(Mikami)Cup
Date	2021-01-29		Rating	1728.39
Round	Color	Result	Opponent
A1	Black	Loss	Yoshimoto Yuta	2237.97
A2	White	Loss	Fujita Maiko	2369.29
A3	White	Loss	Saito Shigetoshi	2010.83
A4	White	Loss	Shibano Ryunosuke	2156.12
A5	White	Loss	Shimura Hiroki	2018.86
21 Renju Emperor Tournament Kanto area 1st round
Date	2020-11-15		Rating	1728.97
Round	Color	Result	Opponent
1	Black	Loss	Inoue Fumiya	2470.15
2	Black	Loss	Maruyama Takashi	2050.96
3	White	Loss	Kishimoto Shogo	2182.13
4	Black	Loss	Maruta Koji	2116.77
37 Kanto Championship
Date	2020-08-10		Rating	1733.12
Round	Color	Result	Opponent
1	Black	Loss	Kato Yasuhiro	2084.36
2	Black	Loss	Ito Midori	1794.62
3	Black	Win	Shimura Hiroki	1969.24
4	Black	Loss	Kawaai Hitoshi	2016.18
5	Black	Loss	Maruyama Takashi	2048.00
6	Black	Loss	Fujita Maiko	2377.53