Kasahara Reiko (笠原礼子)

Place: Tokyo, Japan

Rating: 1803.93, Std: 95.85, Rank: 1080

First game: 2020-08-10, Last game: 2026-04-05

Top rating: 1837.92 (2024-09-22)

Games: 108, Wins: 21, Draws: 2, Losses: 85

Gy1: 28, Gy2: 44, Gy5: 85

43rd Kanto Championship
Date	2026-04-05		Rating	1803.93
Round	Color	Result	Opponent
4	Black	Draw	Suzuki Tetsuji	1780.77
5	White	Loss	Suzuki Yoshitaka	2080.20
6	White	Loss	Tamura Kazumasa	2341.65
43rd Shinei Tournament
Date	2026-03-29		Rating	1804.13
Round	Color	Result	Opponent
1	White	Loss	Yamamoto Ousuke	2157.17
2	Black	Win	Arima Daiki	1427.11
3	Black	Loss	Terabaru Wataru	1882.06
4	White	Win	Yoshikawa Takayuki	1810.16
5	White	Loss	Miyoshi Daisuke	1716.02
20th All Japan Championship
Date	2026-02-23		Rating	1807.01
Round	Color	Result	Opponent
1	Black	Loss	Fujita Maiko	2489.01
2	Black	Loss	Miyamoto Syunju	2339.38
3	Black	Loss	Yoshikawa Tomoki	2479.34
29th New Year (Mikami) Cup
Date	2026-01-11		Rating	1811.07
Round	Color	Result	Opponent
A1	Black	Loss	Iwano Fumio	2160.91
A2	White	Loss	Kishimoto Shogo	2225.31
A3	White	Loss	Lu Yuyang	1908.80
A4	Black	Win	Sakai Yuuki	1815.66
A5	Black	Win	Ito Midori	1872.99
1 1dan 2dan Tournament
Date	2025-11-30		Rating	1812.56
Round	Color	Result	Opponent
1	Black	Loss	Yoshikawa Takayuki	1818.18
2	Black	Loss	Hayashi Kohei	2103.70
3	Black	Win	Suzuki Mika	1695.72
65 Suiseisen Tournament final round
Date	2025-09-28		Rating	1816.97
Round	Color	Result	Opponent
1	Black	Loss	Iwano Fumio	2162.12
2	White	Loss	Kishimoto Shogo	2225.07
3	White	Loss	Nishizawa Aoi	2181.77
4	Black	Loss	Yoshikawa Tomoki	2433.42
5	White	Loss	Suenaga Daiki	2159.88
65 Suiseisen Tournament 1st round
Date	2025-09-15		Rating	1818.56
Round	Color	Result	Opponent
1	Black	Loss	Kishimoto Shogo	2223.57
2	White	Win	Komatsu Subaru	1860.91
3	Black	Win	Miyoshi Daisuke	1711.26
4	Black	Loss	Suenaga Daiki	2158.91
42nd Kanto Championship
Date	2025-06-28		Rating	1822.06
Round	Color	Result	Opponent
1	White	Loss	Ishitani Shin-ichi	2373.92
2	Black	Loss	Iwano Fumio	2177.87
3	Black	Loss	Maruta Hiroki	2273.59
42nd Shinei Tournament
Date	2025-03-30		Rating	1828.28
Round	Color	Result	Opponent
1	Black	Loss	Yoshikawa Tomoki	2361.71
2	White	Win	Suzuki Tetsuji	1795.12
3	Black	Loss	Tanaka Akito	2030.15
4	Black	Loss	Kishimoto Shogo	2205.24
5	White	Loss	Suzuki Yoshitaka	2038.07
28th New Year (Mikami) Cup
Date	2025-01-19		Rating	1834.38
Round	Color	Result	Opponent
A1	Black	Loss	Shimura Hiroki	2236.70
A2	Black	Loss	Hayashi Kohei	2094.80
A3	Black	Win	Suzuki Tetsuji	1791.31
A4	White	Win	Suzuki Mika	1727.43
64 Suiseisen Tournament 1st round
Date	2024-09-22		Rating	1837.92
Round	Color	Result	Opponent
1	Black	Loss	Yoshikawa Tomoki	2280.10
2	Black	Win	Ito Midori	1873.91
3	Black	Win	Suzuki Yoshitaka	2014.18
4	Black	Loss	Shimura Hiroki	2201.69
41st Kanto Championship
Date	2024-07-21		Rating	1832.08
Round	Color	Result	Opponent
4	Black	Loss	Maruta Hiroki	2266.77
5	White	Loss	Yoshikawa Tomoki	2257.79
6	Black	Loss	Fujikawa Masaki	2110.11
41st Shinei Tournament
Date	2024-04-21		Rating	1826.90
Round	Color	Result	Opponent
1	White	Loss	Shimura Hiroki	2167.18
2	Black	Win	Suzuki Tetsuji	1777.38
3	Black	Win	Aoyagi Toshiki	1800.45
4	White	Loss	Kishimoto Shogo	2216.16
5	White	Loss	Tomobe Katsuhiro	2136.45
27th New Year (Mikami) Cup
Date	2024-01-14		Rating	1815.59
Round	Color	Result	Opponent
A1	Black	Loss	Suenaga Daiki	2151.60
A2	Black	Loss	Tomobe Katsuhiro	2126.27
A3	White	Win	Nakamura Keigo	1804.39
A5	Black	Loss	Shimura Hiroki	2160.28
40th Shinei Tournament
Date	2023-04-09		Rating	1780.35
Round	Color	Result	Opponent
1	White	Loss	Kinoshita Osamu	2098.18
2	White	Loss	Shimura Hiroki	2169.60
3	White	Loss	Yoshikawa Tomoki	2151.35
4	White	Loss	Nakamura Keigo	1833.14
5	White	Win	Kato Shota	2000.68
26th New Year (Mikami) Cup
Date	2023-01-15		Rating	1769.63
Round	Color	Result	Opponent
A1	Black	Loss	Toyo Koryu	2205.91
A2	White	Win	Yamamoto Ousuke	2020.20
A3	White	Loss	Okada Akihiro	1951.88
A4	Black	Win	Yamada Eiji	1843.44
A5	White	Loss	Yoshimoto Yuta	2293.76
23 Renju Emperor Tournament Kanto area 1st round
Date	2022-11-06		Rating	1752.67
Round	Color	Result	Opponent
1	Black	Loss	Yokoyama Shota	2468.21
2	Black	Loss	Maruta Koji	2183.09
3	Black	Loss	Suzuki Yoshitaka	2008.48
4	White	Loss	Okada Akihiro	1944.36
62 Suiseisen Tournament 1st round
Date	2022-09-23		Rating	1744.59
Round	Color	Result	Opponent
1	Black	Loss	Okada Akihiro	1940.19
2	Black	Loss	Kishimoto Shogo	2174.22
3	Black	Draw	Ito Midori	1819.91
4	Black	Loss	Yamada Eiji	1848.49
39 Kanto Championship
Date	2022-07-31		Rating	1738.11
Round	Color	Result	Opponent
4	Black	Loss	Kato Yasuhiro	2055.68
5	White	Loss	Kawaai Hitoshi	2076.17
6	Black	Loss	Fukazawa Shingo	1820.41
39 Kanto Shineisen Tournament
Date	2022-04-10		Rating	1732.71
Round	Color	Result	Opponent
1	Black	Loss	Tanaka Shotaro	2305.58
2	White	Loss	Suzuki Yoshitaka	2021.15
3	White	Loss	Kishimoto Shogo	2163.14
4	Black	Loss	Fujikawa Masaki	2143.00
22 Renju Emperor Tournament Kanto area 1st round
Date	2021-11-21		Rating	1731.54
Round	Color	Result	Opponent
1	Black	Loss	Fujikawa Masaki	2170.39
2	Black	Loss	Tanizaki Ryusuke	2046.72
3	Black	Loss	Fujita Maiko	2380.29
4	Black	Loss	Kato Yasuhiro	2058.66
38 Kanto Championship
Date	2021-08-08		Rating	1734.98
Round	Color	Result	Opponent
4	Black	Loss	Li Haoyang	1982.61
5	White	Win	Okada Akihiro	1925.74
6	Black	Loss	Ono Takayuki	2409.53
38 Kanto Shineisen Tournament
Date	2021-04-11		Rating	1731.78
Round	Color	Result	Opponent
1	Black	Loss	Suenaga Daiki	2271.98
2	Black	Win	Shibata Satoru	1769.46
3	Black	Loss	Shimura Hiroki	2036.98
4	Black	Loss	Kawaai Hitoshi	2020.35
5	Black	Loss	Yoshimoto Yuta	2248.02
24th New Year(Mikami)Cup
Date	2021-01-29		Rating	1728.61
Round	Color	Result	Opponent
A1	Black	Loss	Yoshimoto Yuta	2239.20
A2	White	Loss	Fujita Maiko	2370.28
A3	White	Loss	Saito Shigetoshi	2011.88
A4	White	Loss	Shibano Ryunosuke	2158.06
A5	White	Loss	Shimura Hiroki	2020.47
21 Renju Emperor Tournament Kanto area 1st round
Date	2020-11-15		Rating	1729.24
Round	Color	Result	Opponent
1	Black	Loss	Inoue Fumiya	2471.11
2	Black	Loss	Maruyama Takashi	2052.63
3	White	Loss	Kishimoto Shogo	2184.26
4	Black	Loss	Maruta Koji	2118.21
37 Kanto Championship
Date	2020-08-10		Rating	1733.43
Round	Color	Result	Opponent
1	Black	Loss	Kato Yasuhiro	2086.15
2	Black	Loss	Ito Midori	1795.58
3	Black	Win	Shimura Hiroki	1970.72
4	Black	Loss	Kawaai Hitoshi	2017.30
5	Black	Loss	Maruyama Takashi	2049.56
6	Black	Loss	Fujita Maiko	2378.53