Kasahara Reiko (笠原礼子)

Place: Tokyo, Japan

Rating: 1840.45, Std: 87.68, Rank: 1004

First game: 2020-08-10, Last game: 2026-02-23

Top rating: 1848.92 (2024-09-22)

Games: 100, Wins: 19, Draws: 1, Losses: 80

Gy1: 28, Gy2: 44, Gy5: 85

20th All Japan Championship
Date	2026-02-23		Rating	1840.45
Round	Color	Result	Opponent
1	Black	Loss	Fujita Maiko	2500.63
2	Black	Loss	Miyamoto Syunju	2289.32
3	Black	Loss	Yoshikawa Tomoki	2439.57
29th New Year (Mikami) Cup
Date	2026-01-11		Rating	1841.04
Round	Color	Result	Opponent
A1	Black	Loss	Iwano Fumio	2157.94
A2	White	Loss	Kishimoto Shogo	2215.06
A3	White	Loss	Ro Hayou	1899.46
A4	Black	Win	Sakai Yuuki	1852.66
A5	Black	Win	Ito Midori	1879.04
1 1dan 2dan Tournament
Date	2025-11-30		Rating	1839.69
Round	Color	Result	Opponent
1	Black	Loss	Yoshikawa Takayuki	1837.83
2	Black	Loss	Hayashi Kohei	2102.23
3	Black	Win	Suzuki Mika	1710.53
65 Suiseisen Tournament final round
Date	2025-09-28		Rating	1840.20
Round	Color	Result	Opponent
1	Black	Loss	Iwano Fumio	2159.40
2	White	Loss	Kishimoto Shogo	2216.24
3	White	Loss	Nishizawa Aoi	2177.99
4	Black	Loss	Yoshikawa Tomoki	2411.25
5	White	Loss	Suenaga Daiki	2157.67
65 Suiseisen Tournament 1st round
Date	2025-09-15		Rating	1841.08
Round	Color	Result	Opponent
1	Black	Loss	Kishimoto Shogo	2214.86
2	White	Win	Komatsu Subaru	1867.37
3	Black	Win	Miyoshi Daisuke	1671.14
4	Black	Loss	Suenaga Daiki	2156.74
42nd Kanto Championship
Date	2025-06-28		Rating	1841.48
Round	Color	Result	Opponent
1	White	Loss	Ishitani Shin-ichi	2383.14
2	Black	Loss	Iwano Fumio	2175.47
3	Black	Loss	Maruta Hiroki	2271.30
42nd Shinei Tournament
Date	2025-03-30		Rating	1844.41
Round	Color	Result	Opponent
1	Black	Loss	Yoshikawa Tomoki	2349.78
2	White	Win	Suzuki Tetsuji	1810.66
3	Black	Loss	Tanaka Akito	2028.65
4	Black	Loss	Kishimoto Shogo	2198.51
5	White	Loss	Suzuki Yoshitaka	2027.57
28th New Year (Mikami) Cup
Date	2025-01-19		Rating	1848.49
Round	Color	Result	Opponent
A1	Black	Loss	Shimura Hiroki	2232.01
A2	Black	Loss	Hayashi Kohei	2093.22
A3	Black	Win	Suzuki Tetsuji	1803.14
A4	White	Win	Suzuki Mika	1742.13
64 Suiseisen Tournament 1st round
Date	2024-09-22		Rating	1848.92
Round	Color	Result	Opponent
1	Black	Loss	Yoshikawa Tomoki	2273.37
2	Black	Win	Ito Midori	1877.53
3	Black	Win	Suzuki Yoshitaka	2007.66
4	Black	Loss	Shimura Hiroki	2197.32
41st Kanto Championship
Date	2024-07-21		Rating	1841.76
Round	Color	Result	Opponent
4	Black	Loss	Maruta Hiroki	2264.84
5	White	Loss	Yoshikawa Tomoki	2252.32
6	Black	Loss	Fujikawa Masaki	2108.02
41st Shinei Tournament
Date	2024-04-21		Rating	1834.89
Round	Color	Result	Opponent
1	White	Loss	Shimura Hiroki	2163.21
2	Black	Win	Suzuki Tetsuji	1778.84
3	Black	Win	Aoyagi Toshiki	1814.78
4	White	Loss	Kishimoto Shogo	2212.00
5	White	Loss	Tomobe Katsuhiro	2134.13
27th New Year (Mikami) Cup
Date	2024-01-14		Rating	1821.99
Round	Color	Result	Opponent
A1	Black	Loss	Suenaga Daiki	2150.21
A2	Black	Loss	Tomobe Katsuhiro	2124.11
A3	White	Win	Nakamura Keigo	1804.05
A5	Black	Loss	Shimura Hiroki	2156.74
40th Shinei Tournament
Date	2023-04-09		Rating	1783.05
Round	Color	Result	Opponent
1	White	Loss	Kinoshita Osamu	2097.39
2	White	Loss	Shimura Hiroki	2167.25
3	White	Loss	Yoshikawa Tomoki	2148.90
4	White	Loss	Nakamura Keigo	1832.71
5	White	Win	Kato Shota	1998.73
26th New Year (Mikami) Cup
Date	2023-01-15		Rating	1771.38
Round	Color	Result	Opponent
A1	Black	Loss	Toyo Koryu	2205.38
A2	White	Win	Yamamoto Ousuke	2015.18
A3	White	Loss	Okada Akihiro	1935.40
A4	Black	Win	Yamada Eiji	1841.33
A5	White	Loss	Yoshimoto Yuta	2293.45
23 Renju Emperor Tournament Kanto area 1st round
Date	2022-11-06		Rating	1753.89
Round	Color	Result	Opponent
1	Black	Loss	Yokoyama Shota	2478.59
2	Black	Loss	Maruta Koji	2186.33
3	Black	Loss	Suzuki Yoshitaka	2006.19
4	White	Loss	Okada Akihiro	1929.42
62 Suiseisen Tournament 1st round
Date	2022-09-23		Rating	1745.57
Round	Color	Result	Opponent
1	Black	Loss	Okada Akihiro	1926.02
2	Black	Loss	Kishimoto Shogo	2171.66
3	Black	Draw	Ito Midori	1820.78
4	Black	Loss	Yamada Eiji	1846.57
39 Kanto Championship
Date	2022-07-31		Rating	1738.92
Round	Color	Result	Opponent
4	Black	Loss	Kato Yasuhiro	2055.11
5	White	Loss	Kawaai Hitoshi	2074.75
6	Black	Loss	Fukazawa Shingo	1819.56
39 Kanto Shineisen Tournament
Date	2022-04-10		Rating	1733.24
Round	Color	Result	Opponent
1	Black	Loss	Tanaka Shotaro	2304.63
2	White	Loss	Suzuki Yoshitaka	2019.05
3	White	Loss	Kishimoto Shogo	2160.90
4	Black	Loss	Fujikawa Masaki	2141.90
22 Renju Emperor Tournament Kanto area 1st round
Date	2021-11-21		Rating	1731.79
Round	Color	Result	Opponent
1	Black	Loss	Fujikawa Masaki	2169.49
2	Black	Loss	Tanizaki Ryusuke	2046.07
3	Black	Loss	Fujita Maiko	2380.18
4	Black	Loss	Kato Yasuhiro	2057.83
38 Kanto Championship
Date	2021-08-08		Rating	1735.04
Round	Color	Result	Opponent
4	Black	Loss	Li Haoyang	1981.77
5	White	Win	Okada Akihiro	1916.08
6	Black	Loss	Ono Takayuki	2409.61
38 Kanto Shineisen Tournament
Date	2021-04-11		Rating	1731.78
Round	Color	Result	Opponent
1	Black	Loss	Suenaga Daiki	2271.85
2	Black	Win	Shibata Satoru	1769.09
3	Black	Loss	Shimura Hiroki	2036.10
4	Black	Loss	Kawaai Hitoshi	2019.89
5	Black	Loss	Yoshimoto Yuta	2247.73
24th New Year(Mikami)Cup
Date	2021-01-29		Rating	1728.57
Round	Color	Result	Opponent
A1	Black	Loss	Yoshimoto Yuta	2238.91
A2	White	Loss	Fujita Maiko	2369.67
A3	White	Loss	Saito Shigetoshi	2011.47
A4	White	Loss	Shibano Ryunosuke	2156.89
A5	White	Loss	Shimura Hiroki	2019.69
21 Renju Emperor Tournament Kanto area 1st round
Date	2020-11-15		Rating	1729.19
Round	Color	Result	Opponent
1	Black	Loss	Inoue Fumiya	2471.06
2	Black	Loss	Maruyama Takashi	2051.87
3	White	Loss	Kishimoto Shogo	2182.74
4	Black	Loss	Maruta Koji	2118.54
37 Kanto Championship
Date	2020-08-10		Rating	1733.37
Round	Color	Result	Opponent
1	Black	Loss	Kato Yasuhiro	2085.26
2	Black	Loss	Ito Midori	1795.97
3	Black	Win	Shimura Hiroki	1970.05
4	Black	Loss	Kawaai Hitoshi	2016.89
5	Black	Loss	Maruyama Takashi	2048.86
6	Black	Loss	Fujita Maiko	2377.94