Kai Yamamoto (山本快)
| Region | WCA ID | Gender | Competitions | Completed Solves | Japan | 2021YAMA01 | Male | 32 | 462 |
|---|
Current Personal Records
| Event | NR | CR | WR | Single | Average | WR | CR | NR | |
|---|---|---|---|---|---|---|---|---|---|
| 3x3x3 Cube | 162 | 3845 | 10702 | 8.62 | 9.77 | 6986 | 2586 | 105 | |
| 2x2x2 Cube | 55 | 1935 | 8097 | 1.97 | 2.72 | 2934 | 776 | 26 | |
| 4x4x4 Cube | 50 | 1153 | 3360 | 32.14 | 36.27 | 2805 | 987 | 46 | |
| 5x5x5 Cube | 52 | 1082 | 3106 | 1:04.62 | 1:09.70 | 2619 | 934 | 50 | |
| 6x6x6 Cube | 26 | 502 | 1419 | 1:54.49 | 2:02.59 | 1376 | 490 | 26 | |
| 7x7x7 Cube | 49 | 947 | 2717 | 3:32.29 | 3:38.60 | 2433 | 856 | 46 | |
| 3x3x3 Blindfolded | 37 | 307 | 929 | 44.64 | 59.65 | 737 | 229 | 27 | |
| 3x3x3 Fewest Moves | 5 | 20 | 84 | 20 | 23.67 | 140 | 43 | 13 | |
| 3x3x3 One-Handed | 15 | 353 | 1057 | 10.70 | 13.25 | 857 | 310 | 15 | |
| Clock | 6 | 131 | 594 | 3.80 | 5.04 | 681 | 155 | 5 | |
| Megaminx | 35 | 477 | 1862 | 51.47 | 57.08 | 1712 | 440 | 36 | |
| Pyraminx | 23 | 522 | 2052 | 2.28 | 5.12 | 4882 | 1458 | 61 | |
| Skewb | 45 | 1474 | 5958 | 3.63 | 6.65 | 7838 | 2174 | 78 | |
| Square-1 | 30 | 458 | 2070 | 11.35 | 16.33 | 2301 | 538 | 38 | |
| 4x4x4 Blindfolded | 14 | 109 | 351 | 4:21.22 | 9:07.40 | 360 | 91 | 13 | |
| 5x5x5 Blindfolded | 16 | 89 | 280 | 11:21.00 | |||||
| 3x3x3 Multi-Blind | 13 | 84 | 375 | 14/14 51:40 |
| Competition | Round | Place | Single | Average | Solves | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3x3x3 Cube | |||||||||||
| Otsu Biwako Spring 2026 | First round | 13 | 9.84 | 10.81 | 10.55 | 10.58 | 9.84 | 11.30 | 12.37 | ||
| Tokyo Spring 2026 | Second round | 28 | 10.15 | 10.60 | 10.89 | 10.45 | 13.79 | 10.45 | 10.15 | ||
| First round | 32 | 10.37 | 11.40 | 12.21 | 10.37 | 13.30 | 11.43 | 10.55 | |||
| Katano Spring 2026 | First round | 51 | 9.92 | 12.28 | 11.02 | 13.80 | 9.92 | 12.02 | 13.90 | ||
| Kanto Winter 2026 | First round | 31 | 10.58 | 11.18 | 10.97 | 10.94 | 10.58 | 11.62 | 12.76 | ||
| Kanto Spring 2025 | First round | 37 | 9.21 | 11.76 | 11.82 | 11.25 | 12.21 | 9.21 | 14.10 | ||
| Tokai Spring 2025 | Final | 13 | 9.55 | 10.02 | 10.31 | 9.55 | 11.52 | 9.81 | 9.93 | ||
| First round | 18 | 8.99 | 9.77 | 9.08 | 10.20 | 14.66 | 8.99 | 10.02 | |||
| Shonan AM 2024 | Final | 10 | 8.76 | 10.21 | 9.45 | 10.50 | 8.76 | 12.72 | 10.69 | ||
| Tokai Open AM 2024 | Final | 16 | 8.92 | 10.92 | 11.23 | 8.92 | 9.27 | 13.89 | 12.26 | ||
| Kanazawa 2024 | Second round | 28 | 9.94 | 10.96 | 11.93 | 10.23 | 12.94 | 9.94 | 10.71 | ||
| First round | 25 | 10.36 | 10.93 | 11.76 | 11.94 | 10.39 | 10.63 | 10.36 | |||
| Tokyo Challenge VIII 2023 | Final | 9 | 9.67 | 10.64 | 10.06 | 10.33 | 9.67 | 11.70 | 11.54 | ||
| Otsu Biwako Autumn 2023 | First round | 26 | 10.74 | 12.21 | 10.74 | 12.72 | 13.14 | 12.99 | 10.93 | ||
| Rubik's WCA World Championship 2023 | First round | 552 | 10.01 | 12.10 | 10.01 | 11.93 | 13.78 | 12.60 | 11.77 | ||
| Ayase Summer 2023 | First round | 35 | 11.13 | 12.67 | 11.98 | 11.42 | 14.61 | 16.30 | 11.13 | ||
| Hiroshima Spring 2023 | First round | 28 | 8.62 | 11.58 | 8.62 | 11.37 | 10.52 | 13.26 | 12.86 | ||
| Tokyo Challenge Winter C 2023 | Final | 4 | 10.43 | 11.49 | 12.86 | 10.97 | 10.64 | 10.43 | 14.45 | ||
| Ayase Autumn B 2022 | Second round | 26 | 10.60 | 13.10 | 10.60 | 14.28 | 12.39 | 14.55 | 12.63 | ||
| First round | 26 | 11.81 | 13.15 | 12.60 | 11.93 | 17.28 | 11.81 | 14.92 | |||
| Minatomirai 2022 | Final | 32 | 10.99 | 12.32 | 12.94 | 11.90 | 10.99 | 17.55 | 12.13 | ||
| First round | 30 | 10.89 | 12.39 | 10.89 | 11.07 | 12.09 | 14.01 | 14.40 | |||
| Tokai Winter PM 2021 | Final | 14 | 11.30 | 12.96 | 13.94 | 12.04 | 11.30 | DNF | 12.89 | ||
| 2x2x2 Cube | |||||||||||
| Tokyo Spring 2026 | Final | 7 | 1.97 | 2.72 | 2.00 | 3.28 | DNF | 1.97 | 2.89 | ||
| First round | 8 | 1.97 | 2.86 | 1.97 | 2.96 | 3.87 | 2.62 | 3.01 | |||
| Shonan AM 2024 | Final | 6 | 2.28 | 3.52 | 5.76 | 4.62 | 2.28 | 3.04 | 2.90 | ||
| 4x4x4 Cube | |||||||||||
| Katano Spring 2026 | First round | 18 | 32.14 | 36.27 | 40.74 | 34.16 | 33.90 | 44.77 | 32.14 | ||
| Kanto Winter 2026 | First round | 15 | 34.41 | 36.85 | 36.02 | 34.41 | 37.23 | 37.42 | 37.31 | ||
| Kanazawa 2024 | First round | 17 | 38.69 | 42.21 | 44.16 | 38.69 | 43.23 | 39.24 | 48.41 | ||
| 5x5x5 Cube | |||||||||||
| Katano Spring 2026 | First round | 21 | 1:04.62 | 1:09.70 | 1:15.43 | 1:14.92 | 1:09.47 | 1:04.70 | 1:04.62 | ||
| Rubik's WCA World Championship 2023 | First round | 201 | 1:09.88 | 1:12.34 | 1:12.84 | 1:10.63 | 1:17.12 | 1:13.56 | 1:09.88 | ||
| Ayase Summer 2023 | First round | 17 | 1:12.29 | 1:15.55 | 1:15.54 | 1:20.64 | 1:12.29 | 1:16.98 | 1:14.14 | ||
| Ayase Autumn B 2022 | Final | 15 | 1:11.30 | 1:15.98 | 1:11.96 | 1:13.44 | 1:24.10 | 1:11.30 | 1:22.54 | ||
| 6x6x6 Cube | |||||||||||
| Katano Spring 2026 | First round | 18 | 1:54.49 | 2:02.59 | 2:04.73 | 1:54.49 | 2:08.55 | ||||
| Ota Spring 2025 | First round | 13 | 2:13.38 | 2:19.68 | 2:23.65 | 2:13.38 | 2:22.01 | ||||
| Rubik's WCA World Championship 2023 | First round | 154 | 2:12.22 | 2:18.32 | 2:26.15 | 2:16.60 | 2:12.22 | ||||
| Ayase Autumn B 2022 | Final | 12 | 2:21.90 | 2:32.38 | 2:35.47 | 2:21.90 | 2:39.78 | ||||
| 7x7x7 Cube | |||||||||||
| Tokai Spring 2025 | First round | 17 | 3:32.29 | 3:38.60 | 3:43.16 | 3:40.34 | 3:32.29 | ||||
| Ota Blind Summer 2023 | Final | 9 | 3:35.32 | 3:44.16 | 3:41.90 | 3:35.32 | 3:55.27 | ||||
| 3x3x3 Blindfolded | |||||||||||
| Tokyo BLD Spring 2026 | Final | 17 | 44.64 | DNF | 1:32.80 | DNF | 56.87 | 44.64 | DNF | ||
| Second round | 19 | 51.64 | DNF | 51.64 | DNF | DNF | 1:10.27 | 1:09.02 | |||
| First round | 21 | 53.84 | DNF | DNF | 53.84 | DNF | 1:08.61 | DNF | |||
| Kanto Winter 2026 | First round | 14 | 47.84 | 1:10.33 | 47.84 | DNF | 56.86 | 58.52 | 1:35.60 | ||
| Tokyo BLD Spring 2025 | First round | 18 | 54.67 | 59.65 | 1:08.62 | 55.66 | 54.67 | ||||
| Kanazawa 2024 | Final | 13 | 59.47 | DNF | 59.47 | 1:06.33 | DNF | ||||
| Rubik's WCA World Championship 2023 | First round | 102 | 1:10.13 | 1:19.44 | 1:32.25 | 1:15.95 | 1:10.13 | ||||
| Ota Blind Summer 2023 | Second round | 13 | 1:27.52 | 2:01.43 | 1:27.52 | 2:10.06 | 2:26.72 | ||||
| First round | 21 | 1:33.30 | 1:48.82 | 1:40.81 | 1:33.30 | 2:12.35 | |||||
| Tokyo Challenge BLD I 2023 | Final | 18 | 2:58.65 | DNF | DNF | 2:58.65 | DNF | ||||
| Hiroshima Spring 2023 | Final | 8 | 1:11.93 | DNF | 1:11.93 | 1:29.99 | DNF | ||||
| Ota Blind Summer 2022 | Final | 16 | 1:47.57 | DNF | DNF | 2:43.33 | 1:47.57 | ||||
| First round | 20 | 1:50.93 | 2:05.36 | 1:50.93 | 2:06.10 | 2:19.06 | |||||
| Minatomirai 2022 | Final | 12 | 1:41.41 | 2:13.80 | 1:41.41 | 2:24.64 | 2:35.34 | ||||
| 3x3x3 Fewest Moves | |||||||||||
| Tokyo FMC Spring 2026 | Final | 8 | 20 | 23.67 | 26 | 25 | 20 | ||||
| First round | 6 | 21 | 23.67 | 21 | 24 | 26 | |||||
| Tokyo FMC Spring 2025 | Final | 11 | 23 | 24.67 | 23 | 28 | 23 | ||||
| First round | 7 | 25 | 26.33 | 27 | 27 | 25 | |||||
| Tokyo Open FMC Winter 2025 | Final | 25 | 30 | DNF | DNF | 30 | 37 | ||||
| Ayase FMC 2023 | Final | 14 | 37 | 38.67 | 42 | 37 | 37 | ||||
| 3x3x3 One-Handed | |||||||||||
| Katano Spring 2026 | Final | 14 | 12.82 | 15.76 | 12.82 | 14.42 | 18.58 | 14.29 | 34.44 | ||
| First round | 7 | 12.15 | 13.25 | 16.07 | 13.61 | 12.56 | 13.57 | 12.15 | |||
| Kanto Spring 2025 | Final | 8 | 10.70 | 14.19 | 14.45 | 14.24 | 13.89 | 17.83 | 10.70 | ||
| First round | 6 | 11.95 | 13.34 | 18.01 | 13.11 | 13.87 | 11.95 | 13.04 | |||
| Tokai Open AM 2024 | Final | 7 | 12.98 | 14.50 | 14.79 | 15.29 | 14.06 | 12.98 | 14.66 | ||
| First round | 9 | 13.54 | 16.63 | 19.37 | 13.54 | 15.86 | DNF | 14.66 | |||
| Otsu Biwako Autumn 2023 | Final | 7 | 13.71 | 14.68 | 13.71 | 16.50 | 14.57 | 15.71 | 13.75 | ||
| First round | 6 | 11.48 | 14.31 | 13.31 | 11.48 | 18.88 | 15.40 | 14.22 | |||
| Rubik's WCA World Championship 2023 | First round | 192 | 14.86 | 18.00 | 20.89 | 18.20 | 17.75 | 14.86 | 18.05 | ||
| Ayase Summer 2023 | Final | 7 | 13.94 | 15.94 | 20.08 | 14.51 | 13.94 | 16.28 | 17.02 | ||
| First round | 10 | 12.72 | 17.14 | 18.29 | 12.72 | 16.31 | 19.52 | 16.83 | |||
| Minatomirai 2022 | Final | 11 | 15.42 | 17.45 | 18.43 | 17.34 | 15.42 | 16.57 | 18.62 | ||
| Clock | |||||||||||
| Otsu Biwako Spring 2026 | Final | 3 | 4.77 | 5.04 | 5.19 | 4.77 | 4.91 | 11.67 | 5.02 | ||
| Tokai Spring 2025 | Final | 16 | 4.71 | DNF | 6.95 | DNF | 4.91 | DNF | 4.71 | ||
| First round | 3 | 3.80 | 5.35 | 5.11 | 6.08 | 6.08 | 3.80 | 4.86 | |||
| Tokai Challenge Gamma 2024 | Final | 6 | 4.01 | 6.36 | 4.01 | 9.39 | 6.82 | 4.28 | 7.98 | ||
| First round | 3 | 4.28 | 5.08 | 5.44 | 4.85 | 6.78 | 4.95 | 4.28 | |||
| Ota Blind New Year 2024 | Final | 2 | 5.14 | 5.51 | 7.25 | 5.14 | 5.36 | 5.56 | 5.61 | ||
| Megaminx | |||||||||||
| Ota Spring 2025 | Final | 10 | 51.47 | 57.53 | 51.47 | 1:01.02 | 56.82 | 54.74 | 1:05.04 | ||
| First round | 12 | 53.42 | 57.08 | 1:01.46 | 1:06.87 | 54.97 | 54.82 | 53.42 | |||
| Rubik's WCA World Championship 2023 | First round | 185 | 58.56 | 1:09.91 | 1:20.35 | 1:02.86 | 1:06.53 | 1:21.60 | 58.56 | ||
| Ayase Summer 2023 | First round | 21 | 1:08.71 | 1:13.27 | 1:10.78 | 1:08.71 | 1:19.17 | 1:28.02 | 1:09.85 | ||
| Hiroshima Spring 2023 | Final | 21 | 1:07.44 | 1:18.04 | 1:12.93 | 1:26.08 | 1:20.60 | 1:20.60 | 1:07.44 | ||
| Ayase Autumn B 2022 | First round | 17 | 1:14.39 | 1:34.47 | 1:30.53 | 1:49.70 | 1:14.39 | 1:51.73 | 1:23.18 | ||
| Pyraminx | |||||||||||
| Otsu Biwako Spring 2026 | First round | 16 | 4.38 | 6.48 | 4.38 | 7.05 | 7.54 | 4.84 | 14.82 | ||
| Tokyo Spring 2026 | Final | 7 | 4.20 | 5.16 | 4.20 | 5.56 | 5.13 | 6.34 | 4.79 | ||
| First round | 9 | 3.50 | 5.40 | 6.18 | 4.80 | 6.18 | 5.23 | 3.50 | |||
| Katano Spring 2026 | First round | 28 | 5.13 | 6.69 | 5.13 | 8.06 | 6.44 | DNF | 5.56 | ||
| Kanto Spring 2025 | Final | 23 | 3.12 | 8.58 | DNF | 3.12 | 15.21 | 4.45 | 6.09 | ||
| First round | 11 | 2.28 | 5.12 | 4.96 | 2.28 | 5.55 | 12.66 | 4.84 | |||
| Otsu Biwako Autumn 2023 | Final | 9 | 4.43 | 5.51 | 6.35 | 4.73 | 4.43 | DNF | 5.45 | ||
| Rubik's WCA World Championship 2023 | First round | 178 | 5.20 | 5.56 | 5.20 | 5.60 | 5.58 | 5.50 | 6.20 | ||
| Hiroshima Spring 2023 | Final | 6 | 4.58 | 5.48 | 8.89 | 5.22 | 5.50 | 4.58 | 5.71 | ||
| First round | 9 | 4.74 | 6.11 | 9.19 | 4.74 | 4.80 | 7.93 | 5.60 | |||
| Skewb | |||||||||||
| Otsu Biwako Spring 2026 | First round | 15 | 5.44 | 6.65 | 8.04 | 6.36 | 5.44 | 5.55 | 8.98 | ||
| Kanto Winter 2026 | First round | 21 | 5.10 | 7.74 | 5.10 | 7.21 | 8.57 | 7.43 | 8.91 | ||
| Tokai Spring 2025 | First round | 21 | 5.63 | 7.51 | 8.93 | 7.43 | 6.17 | 9.59 | 5.63 | ||
| Ota Spring 2025 | First round | 16 | 5.35 | 6.90 | 5.35 | 7.53 | 6.85 | 6.31 | 8.96 | ||
| Rubik's WCA World Championship 2023 | First round | 201 | 3.63 | 6.70 | 7.47 | 3.63 | 9.70 | 6.54 | 6.08 | ||
| Hiroshima Spring 2023 | Final | 16 | 5.48 | 9.10 | 6.30 | 18.15 | 10.61 | 5.48 | 10.39 | ||
| Minatomirai 2022 | Final | 12 | 6.52 | 7.59 | 9.46 | 7.98 | 6.52 | 7.36 | 7.42 | ||
| Square-1 | |||||||||||
| Ota Spring 2025 | First round | 14 | 15.92 | 17.36 | 16.55 | 22.76 | 15.92 | 19.47 | 16.06 | ||
| Otsu Biwako Autumn 2023 | Final | 12 | 11.35 | 16.33 | 21.87 | 19.20 | 13.76 | 16.04 | 11.35 | ||
| 4x4x4 Blindfolded | |||||||||||
| Tokyo BLD Spring 2026 | Final | 8 | 4:21.22 | DNF | 4:21.22 | DNF | DNF | ||||
| Tokyo BLD Spring 2025 | Final | 7 | 4:31.48 | DNF | DNF | 4:31.48 | DNF | ||||
| Rubik's WCA World Championship 2023 | Final | 28 | 5:37.18 | DNF | DNF | DNF | 5:37.18 | ||||
| Ota Blind Summer 2023 | Final | 10 | 8:46.14 | 9:07.40 | 9:13.33 | 8:46.14 | 9:22.72 | ||||
| Ota Blind Winter 2022 | Final | 7 | 9:10.23 | DNF | DNF | DNF | 9:10.23 | ||||
| 5x5x5 Blindfolded | |||||||||||
| Tokyo BLD Spring 2026 | Final | 8 | 11:21.00 | DNF | 11:21.00 | DNF | DNF | ||||
| Tokyo BLD Spring 2025 | Final | 8 | 13:44.00 | DNF | 13:44.00 | DNF | DNF | ||||
| Ota Blind New Year 2024 | Final | 3 | 14:33.00 | DNF | 14:33.00 | DNF | DNF | ||||
| Rubik's WCA World Championship 2023 | Final | 24 | 18:10.00 | DNF | 18:10.00 | DNF | DNS | ||||
| Ota Blind Winter 2022 | Final | 9 | 20:20.00 | DNF | DNF | 20:20.00 | DNS | ||||
| 3x3x3 Multi-Blind | |||||||||||
| Tokyo BLD Winter 2026 | Final | 13 | 10/17 1:00:00 | 10/17 1:00:00 | |||||||
| First round | 5 | 14/14 51:40 | 14/17 58:05 | 14/14 51:40 | |||||||
| Tokyo BLD Spring 2025 | Final | 7 | 8/10 44:27 | 8/10 44:27 | |||||||
| 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 | |||||||