Kai Yamamoto (山本快)

Region WCA ID Gender Competitions Completed Solves
Japan 2021YAMA01 Male 22 307

Current Personal Records

Event NR CR WR Single Average WR CR NR
3x3x3 Cube 126 3122 8942 8.62 9.77 5704 2012 83
2x2x2 Cube 68 2519 10407 2.28 3.52 6987 1826 57
4x4x4 Cube 78 2458 6950 38.69 42.21 5282 1879 57
5x5x5 Cube 46 1218 3523 1:09.88 1:12.34 2469 859 38
6x6x6 Cube 33 711 2137 2:12.22 2:18.32 1910 630 30
7x7x7 Cube 34 747 2181 3:32.29 3:38.60 1932 668 30
3x3x3 Blindfolded 57 412 1235 59.47 1:19.44 910 276 32
3x3x3 Fewest Moves 47 346 1478 30 38.67 2063 509 54
3x3x3 One-Handed 16 398 1282 11.48 14.31 1117 388 15
Clock 5 72 407 3.80 5.08 480 106 5
Megaminx 27 388 1500 51.47 57.08 1389 363 27
Pyraminx 82 2831 10641 4.43 5.48 5030 1464 51
Skewb 39 1288 5071 3.63 6.70 6927 1941 61
Square-1 24 376 1776 11.35 16.33 1980 456 31
4x4x4 Blindfolded 19 125 446 5:37.18 9:07.40 279 68 6
5x5x5 Blindfolded 18 101 355 14:33.00
3x3x3 Multi-Blind 49 313 1237 9/12 58:55

Medal Collection

Gold Silver Bronze
0 1 1
Competition Round Place Single Average Solves
3x3x3 Cube
Tokai Spring 2025 Final 13 9.55 10.02 10.319.5511.529.819.93
First round 18 8.99 9.77 9.0810.2014.668.9910.02
Shonan AM 2024 Final 10 8.76 10.21 9.4510.508.7612.7210.69
Tokai Open AM 2024 Final 16 8.92 10.92 11.238.929.2713.8912.26
Kanazawa 2024 Second round 28 9.94 10.96 11.9310.2312.949.9410.71
First round 25 10.36 10.93 11.7611.9410.3910.6310.36
Tokyo Challenge VIII 2023 Final 9 9.67 10.64 10.0610.339.6711.7011.54
Otsu Biwako Autumn 2023 First round 26 10.74 12.21 10.7412.7213.1412.9910.93
Rubik's WCA World Championship 2023 First round 552 10.01 12.10 10.0111.9313.7812.6011.77
Ayase Summer 2023 First round 35 11.13 12.67 11.9811.4214.6116.3011.13
Hiroshima Spring 2023 First round 28 8.62 11.58 8.6211.3710.5213.2612.86
Tokyo Challenge Winter C 2023 Final 4 10.43 11.49 12.8610.9710.6410.4314.45
Ayase Autumn B 2022 Second round 26 10.60 13.10 10.6014.2812.3914.5512.63
First round 26 11.81 13.15 12.6011.9317.2811.8114.92
Minatomirai 2022 Final 32 10.99 12.32 12.9411.9010.9917.5512.13
First round 30 10.89 12.39 10.8911.0712.0914.0114.40
Tokai Winter PM 2021 Final 14 11.30 12.96 13.9412.0411.30DNF12.89
2x2x2 Cube
Shonan AM 2024 Final 6 2.28 3.52 5.764.622.283.042.90
4x4x4 Cube
Kanazawa 2024 First round 17 38.69 42.21 44.1638.6943.2339.2448.41
5x5x5 Cube
Rubik's WCA World Championship 2023 First round 201 1:09.88 1:12.34 1:12.841:10.631:17.121:13.561:09.88
Ayase Summer 2023 First round 17 1:12.29 1:15.55 1:15.541:20.641:12.291:16.981:14.14
Ayase Autumn B 2022 Final 15 1:11.30 1:15.98 1:11.961:13.441:24.101:11.301:22.54
6x6x6 Cube
Ota Spring 2025 First round 13 2:13.38 2:19.68 2:23.652:13.382:22.01
Rubik's WCA World Championship 2023 First round 154 2:12.22 2:18.32 2:26.152:16.602:12.22
Ayase Autumn B 2022 Final 12 2:21.90 2:32.38 2:35.472:21.902:39.78
7x7x7 Cube
Tokai Spring 2025 First round 17 3:32.29 3:38.60 3:43.163:40.343:32.29
Ota Blind Summer 2023 Final 9 3:35.32 3:44.16 3:41.903:35.323:55.27
3x3x3 Blindfolded
Kanazawa 2024 Final 13 59.47 DNF 59.471:06.33DNF
Rubik's WCA World Championship 2023 First round 102 1:10.13 1:19.44 1:32.251:15.951:10.13
Ota Blind Summer 2023 Second round 13 1:27.52 2:01.43 1:27.522:10.062:26.72
First round 21 1:33.30 1:48.82 1:40.811:33.302:12.35
Tokyo Challenge BLD I 2023 Final 18 2:58.65 DNF DNF2:58.65DNF
Hiroshima Spring 2023 Final 8 1:11.93 DNF 1:11.931:29.99DNF
Ota Blind Summer 2022 Final 16 1:47.57 DNF DNF2:43.331:47.57
First round 20 1:50.93 2:05.36 1:50.932:06.102:19.06
Minatomirai 2022 Final 12 1:41.41 2:13.80 1:41.412:24.642:35.34
3x3x3 Fewest Moves
Tokyo Open FMC Winter 2025 Final 25 30 DNF DNF3037
Ayase FMC 2023 Final 14 37 38.67 423737
3x3x3 One-Handed
Tokai Open AM 2024 Final 7 12.98 14.50 14.7915.2914.0612.9814.66
First round 9 13.54 16.63 19.3713.5415.86DNF14.66
Otsu Biwako Autumn 2023 Final 7 13.71 14.68 13.7116.5014.5715.7113.75
First round 6 11.48 14.31 13.3111.4818.8815.4014.22
Rubik's WCA World Championship 2023 First round 192 14.86 18.00 20.8918.2017.7514.8618.05
Ayase Summer 2023 Final 7 13.94 15.94 20.0814.5113.9416.2817.02
First round 10 12.72 17.14 18.2912.7216.3119.5216.83
Minatomirai 2022 Final 11 15.42 17.45 18.4317.3415.4216.5718.62
Clock
Tokai Spring 2025 Final 16 4.71 DNF 6.95DNF4.91DNF4.71
First round 3 3.80 5.35 5.116.086.083.804.86
Tokai Challenge Gamma 2024 Final 6 4.01 6.36 4.019.396.824.287.98
First round 3 4.28 5.08 5.444.856.784.954.28
Ota Blind New Year 2024 Final 2 5.14 5.51 7.255.145.365.565.61
Megaminx
Ota Spring 2025 Final 10 51.47 57.53 51.471:01.0256.8254.741:05.04
First round 12 53.42 57.08 1:01.461:06.8754.9754.8253.42
Rubik's WCA World Championship 2023 First round 185 58.56 1:09.91 1:20.351:02.861:06.531:21.6058.56
Ayase Summer 2023 First round 21 1:08.71 1:13.27 1:10.781:08.711:19.171:28.021:09.85
Hiroshima Spring 2023 Final 21 1:07.44 1:18.04 1:12.931:26.081:20.601:20.601:07.44
Ayase Autumn B 2022 First round 17 1:14.39 1:34.47 1:30.531:49.701:14.391:51.731:23.18
Pyraminx
Otsu Biwako Autumn 2023 Final 9 4.43 5.51 6.354.734.43DNF5.45
Rubik's WCA World Championship 2023 First round 178 5.20 5.56 5.205.605.585.506.20
Hiroshima Spring 2023 Final 6 4.58 5.48 8.895.225.504.585.71
First round 9 4.74 6.11 9.194.744.807.935.60
Skewb
Tokai Spring 2025 First round 21 5.63 7.51 8.937.436.179.595.63
Ota Spring 2025 First round 16 5.35 6.90 5.357.536.856.318.96
Rubik's WCA World Championship 2023 First round 201 3.63 6.70 7.473.639.706.546.08
Hiroshima Spring 2023 Final 16 5.48 9.10 6.3018.1510.615.4810.39
Minatomirai 2022 Final 12 6.52 7.59 9.467.986.527.367.42
Square-1
Ota Spring 2025 First round 14 15.92 17.36 16.5522.7615.9219.4716.06
Otsu Biwako Autumn 2023 Final 12 11.35 16.33 21.8719.2013.7616.0411.35
4x4x4 Blindfolded
Rubik's WCA World Championship 2023 Final 28 5:37.18 DNF DNFDNF5:37.18
Ota Blind Summer 2023 Final 10 8:46.14 9:07.40 9:13.338:46.149:22.72
Ota Blind Winter 2022 Final 7 9:10.23 DNF DNFDNF9:10.23
5x5x5 Blindfolded
Ota Blind New Year 2024 Final 3 14:33.00 DNF 14:33.00DNFDNF
Rubik's WCA World Championship 2023 Final 24 18:10.00 DNF 18:10.00DNFDNS
Ota Blind Winter 2022 Final 9 20:20.00 DNF DNF20:20.00DNS
3x3x3 Multi-Blind
Ota Blind New Year 2024 Final 11 9/12 58:55 9/12 58:55
Ota Blind Winter 2022 Final 16 2/3 15:32 2/3 15:32
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