Personal Page

Kai Yamamoto (山本快)

Name: Kai Yamamoto (山本快)
Region: Japan
Competitions: 25
WCA ID: Kai Yamamoto (山本快)2021YAMA01
Gender: Male
Career: 2021.12.11 - 2025.05.31
2025 Annual Summary

Current Personal Records

EventNRCRWRSingleAverageWRCRNRGoldSilverBronzeSolves/Attempts
3x3x3 Cube1573681103448.629.776706245310389/90
2x2x2 Cube792949118762.283.5279822178685/5
4x4x4 Cube992831809638.6942.2162662217755/5
5x5x5 Cube67146742281:09.881:12.34299310515415/15
6x6x6 Cube4785725362:12.222:18.322282764419/9
7x7x7 Cube4990126083:32.293:38.602313805466/6
3x3x3 Blindfolded51408125454.6759.657142222725/30
3x3x3 Fewest Moves17853272324.67178551311/12
3x3x3 One-Handed15336102210.7013.348473061549/50
Clock61235673.805.086711556123/25
Megaminx35463178351.4757.0816494303630/30
Pyraminx2250719862.285.12474914245928/30
Skewb44143758073.636.70777621557825/25
Square-130446202711.3516.3322475243810/10
4x4x4 Blindfolded151093664:31.489:07.4034486136/12
5x5x5 Blindfolded2110737113:44.0014/10
3x3x3 Multi-Blind4631012538/10 44:273/3

Sum of Ranks

 Sum of NRSum of CRSum of WR
Single8001701756451
Average6821488247914

Overall Medal Collection

GoldSilverBronze
11
3x3x3 Cube
CompetitionRoundPlaceBestAverageDetail
Kanto Spring 2025First round37 9.21 11.76
11.82     11.25     12.21     9.21      14.10
Tokai Spring 2025Final13 9.55 10.02
10.31     9.55      11.52     9.81      9.93
First round18 8.99 9.77
9.08      10.20     14.66     8.99      10.02
Shonan AM 2024Final10 8.76 10.21
9.45      10.50     8.76      12.72     10.69
Tokai Open AM 2024Final16 8.92 10.92
11.23     8.92      9.27      13.89     12.26
Kanazawa 2024Second round28 9.94 10.96
11.93     10.23     12.94     9.94      10.71
First round25 10.36 10.93
11.76     11.94     10.39     10.63     10.36
Tokyo Challenge VIII 2023Final9 9.67 10.64
10.06     10.33     9.67      11.70     11.54
Otsu Biwako Autumn 2023First round26 10.74 12.21
10.74     12.72     13.14     12.99     10.93
WCA World Championship 2023First round552 10.01 12.10
10.01     11.93     13.78     12.60     11.77
Ayase Summer 2023First round35 11.13 12.67
11.98     11.42     14.61     16.30     11.13
Hiroshima Spring 2023First round28 8.62 11.58
8.62      11.37     10.52     13.26     12.86
Tokyo Challenge Winter C 2023Final4 10.43 11.49
12.86     10.97     10.64     10.43     14.45
Ayase Autumn B 2022Second round26 10.60 13.10
10.60     14.28     12.39     14.55     12.63
First round26 11.81 13.15
12.60     11.93     17.28     11.81     14.92
Minatomirai 2022Final32 10.99 12.32
12.94     11.90     10.99     17.55     12.13
First round30 10.89 12.39
10.89     11.07     12.09     14.01     14.40
Tokai Winter PM 2021Final14 11.30 12.96
13.94     12.04     11.30     DNF       12.89
 
2x2x2 Cube
CompetitionRoundPlaceBestAverageDetail
Shonan AM 2024Final6 2.28 3.52
5.76      4.62      2.28      3.04      2.90
 
4x4x4 Cube
CompetitionRoundPlaceBestAverageDetail
Kanazawa 2024First round17 38.69 42.21
44.16     38.69     43.23     39.24     48.41
 
5x5x5 Cube
CompetitionRoundPlaceBestAverageDetail
WCA World Championship 2023First round201 1:09.88 1:12.34
1:12.84   1:10.63   1:17.12   1:13.56   1:09.88
Ayase Summer 2023First round17 1:12.29 1:15.55
1:15.54   1:20.64   1:12.29   1:16.98   1:14.14
Ayase Autumn B 2022Final15 1:11.30 1:15.98
1:11.96   1:13.44   1:24.10   1:11.30   1:22.54
 
6x6x6 Cube
CompetitionRoundPlaceBestAverageDetail
Ota Spring 2025First round13 2:13.38 2:19.68
2:23.65   2:13.38   2:22.01
WCA World Championship 2023First round154 2:12.22 2:18.32
2:26.15   2:16.60   2:12.22
Ayase Autumn B 2022Final12 2:21.90 2:32.38
2:35.47   2:21.90   2:39.78
 
7x7x7 Cube
CompetitionRoundPlaceBestAverageDetail
Tokai Spring 2025First round17 3:32.29 3:38.60
3:43.16   3:40.34   3:32.29
Ota Blind Summer 2023Final9 3:35.32 3:44.16
3:41.90   3:35.32   3:55.27
 
3x3x3 Blindfolded
CompetitionRoundPlaceBestAverageDetail
Tokyo BLD Spring 2025First round18 54.67 59.65
1:08.62   55.66     54.67
Kanazawa 2024Final13 59.47 DNF
59.47     1:06.33   DNF
WCA World Championship 2023First round102 1:10.13 1:19.44
1:32.25   1:15.95   1:10.13
Ota Blind Summer 2023Second round13 1:27.52 2:01.43
1:27.52   2:10.06   2:26.72
First round21 1:33.30 1:48.82
1:40.81   1:33.30   2:12.35
Challenge BLD 2023Final18 2:58.65 DNF
DNF       2:58.65   DNF
Hiroshima Spring 2023Final8 1:11.93 DNF
1:11.93   1:29.99   DNF
Ota Blind Summer 2022Final16 1:47.57 DNF
DNF       2:43.33   1:47.57
First round20 1:50.93 2:05.36
1:50.93   2:06.10   2:19.06
Minatomirai 2022Final12 1:41.41 2:13.80
1:41.41   2:24.64   2:35.34
 
3x3x3 Fewest Moves
CompetitionRoundPlaceBestAverageDetail
Tokyo FMC Spring 2025Final11 23 24.67
23        28        23
First round7 25 26.33
27        27        25
Tokyo Open FMC Winter 2025Final25 30 DNF
DNF       30        37
Ayase FMC 2023Final14 37 38.67
42        37        37
 
3x3x3 One-Handed
CompetitionRoundPlaceBestAverageDetail
Kanto Spring 2025Final8 10.70 14.19
14.45     14.24     13.89     17.83     10.70
First round6 11.95 13.34
18.01     13.11     13.87     11.95     13.04
Tokai Open AM 2024Final7 12.98 14.50
14.79     15.29     14.06     12.98     14.66
First round9 13.54 16.63
19.37     13.54     15.86     DNF       14.66
Otsu Biwako Autumn 2023Final7 13.71 14.68
13.71     16.50     14.57     15.71     13.75
First round6 11.48 14.31
13.31     11.48     18.88     15.40     14.22
WCA World Championship 2023First round192 14.86 18.00
20.89     18.20     17.75     14.86     18.05
Ayase Summer 2023Final7 13.94 15.94
20.08     14.51     13.94     16.28     17.02
First round10 12.72 17.14
18.29     12.72     16.31     19.52     16.83
Minatomirai 2022Final11 15.42 17.45
18.43     17.34     15.42     16.57     18.62
 
Clock
CompetitionRoundPlaceBestAverageDetail
Tokai Spring 2025Final16 4.71 DNF
6.95      DNF       4.91      DNF       4.71
First round3 3.80 5.35
5.11      6.08      6.08      3.80      4.86
Tokai Challenge Gamma 2024Final6 4.01 6.36
4.01      9.39      6.82      4.28      7.98
First round3 4.28 5.08
5.44      4.85      6.78      4.95      4.28
Ota Blind New Year 2024Final2 5.14 5.51
7.25      5.14      5.36      5.56      5.61
 
Megaminx
CompetitionRoundPlaceBestAverageDetail
Ota Spring 2025Final10 51.47 57.53
51.47     1:01.02   56.82     54.74     1:05.04
First round12 53.42 57.08
1:01.46   1:06.87   54.97     54.82     53.42
WCA World Championship 2023First round185 58.56 1:09.91
1:20.35   1:02.86   1:06.53   1:21.60   58.56
Ayase Summer 2023First round21 1:08.71 1:13.27
1:10.78   1:08.71   1:19.17   1:28.02   1:09.85
Hiroshima Spring 2023Final21 1:07.44 1:18.04
1:12.93   1:26.08   1:20.60   1:20.60   1:07.44
Ayase Autumn B 2022First round17 1:14.39 1:34.47
1:30.53   1:49.70   1:14.39   1:51.73   1:23.18
 
Pyraminx
CompetitionRoundPlaceBestAverageDetail
Kanto Spring 2025Final23 3.12 8.58
DNF       3.12      15.21     4.45      6.09
First round11 2.28 5.12
4.96      2.28      5.55      12.66     4.84
Otsu Biwako Autumn 2023Final9 4.43 5.51
6.35      4.73      4.43      DNF       5.45
WCA World Championship 2023First round178 5.20 5.56
5.20      5.60      5.58      5.50      6.20
Hiroshima Spring 2023Final6 4.58 5.48
8.89      5.22      5.50      4.58      5.71
First round9 4.74 6.11
9.19      4.74      4.80      7.93      5.60
 
Skewb
CompetitionRoundPlaceBestAverageDetail
Tokai Spring 2025First round21 5.63 7.51
8.93      7.43      6.17      9.59      5.63
Ota Spring 2025First round16 5.35 6.90
5.35      7.53      6.85      6.31      8.96
WCA World Championship 2023First round201 3.63 6.70
7.47      3.63      9.70      6.54      6.08
Hiroshima Spring 2023Final16 5.48 9.10
6.30      18.15     10.61     5.48      10.39
Minatomirai 2022Final12 6.52 7.59
9.46      7.98      6.52      7.36      7.42
 
Square-1
CompetitionRoundPlaceBestAverageDetail
Ota Spring 2025First round14 15.92 17.36
16.55     22.76     15.92     19.47     16.06
Otsu Biwako Autumn 2023Final12 11.35 16.33
21.87     19.20     13.76     16.04     11.35
 
4x4x4 Blindfolded
CompetitionRoundPlaceBestAverageDetail
Tokyo BLD Spring 2025Final7 4:31.48 DNF
DNF       4:31.48   DNF
WCA World Championship 2023Final28 5:37.18 DNF
DNF       DNF       5:37.18
Ota Blind Summer 2023Final10 8:46.14 9:07.40
9:13.33   8:46.14   9:22.72
Ota Blind Winter 2022Final7 9:10.23 DNF
DNF       DNF       9:10.23
 
5x5x5 Blindfolded
CompetitionRoundPlaceBestAverageDetail
Tokyo BLD Spring 2025Final8 13:44.00 DNF
13:44.00   DNF       DNF
Ota Blind New Year 2024Final3 14:33.00 DNF
14:33.00   DNF       DNF
WCA World Championship 2023Final24 18:10.00 DNF
18:10.00   DNF       DNS
Ota Blind Winter 2022Final9 20:20.00 DNF
DNF       20:20.00   DNS
 
3x3x3 Multi-Blind
CompetitionRoundPlaceBestAverageDetail
Tokyo BLD Spring 2025Final7 8/10 44:27 
8/10 44:27
Ota Blind New Year 2024Final11 9/12 58:55 
9/12 58:55
Ota Blind Winter 2022Final16 2/3 15:32 
2/3 15:32
Kanto Spring 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round37 9.21 11.76
11.82     11.25     12.21     9.21      14.10
3x3x3 One-HandedFinal8 10.70 14.19
14.45     14.24     13.89     17.83     10.70
First round6 11.95 13.34
18.01     13.11     13.87     11.95     13.04
PyraminxFinal23 3.12 8.58
DNF       3.12      15.21     4.45      6.09
First round11 2.28 5.12
4.96      2.28      5.55      12.66     4.84
 
Tokyo FMC Spring 2025
EventRoundPlaceBestAverageDetail
3x3x3 Fewest MovesFinal11 23 24.67
23        28        23
First round7 25 26.33
27        27        25
 
Tokyo BLD Spring 2025
EventRoundPlaceBestAverageDetail
3x3x3 BlindfoldedFirst round18 54.67 59.65
1:08.62   55.66     54.67
4x4x4 BlindfoldedFinal7 4:31.48 DNF
DNF       4:31.48   DNF
5x5x5 BlindfoldedFinal8 13:44.00 DNF
13:44.00   DNF       DNF
3x3x3 Multi-BlindFinal7 8/10 44:27 
8/10 44:27
 
Tokai Spring 2025
EventRoundPlaceBestAverageDetail
3x3x3 CubeFinal13 9.55 10.02
10.31     9.55      11.52     9.81      9.93
First round18 8.99 9.77
9.08      10.20     14.66     8.99      10.02
7x7x7 CubeFirst round17 3:32.29 3:38.60
3:43.16   3:40.34   3:32.29
ClockFinal16 4.71 DNF
6.95      DNF       4.91      DNF       4.71
First round3 3.80 5.35
5.11      6.08      6.08      3.80      4.86
SkewbFirst round21 5.63 7.51
8.93      7.43      6.17      9.59      5.63
 
Ota Spring 2025
EventRoundPlaceBestAverageDetail
6x6x6 CubeFirst round13 2:13.38 2:19.68
2:23.65   2:13.38   2:22.01
MegaminxFinal10 51.47 57.53
51.47     1:01.02   56.82     54.74     1:05.04
First round12 53.42 57.08
1:01.46   1:06.87   54.97     54.82     53.42
SkewbFirst round16 5.35 6.90
5.35      7.53      6.85      6.31      8.96
Square-1First round14 15.92 17.36
16.55     22.76     15.92     19.47     16.06
 
Tokyo Open FMC Winter 2025
EventRoundPlaceBestAverageDetail
3x3x3 Fewest MovesFinal25 30 DNF
DNF       30        37
 
Shonan AM 2024
EventRoundPlaceBestAverageDetail
3x3x3 CubeFinal10 8.76 10.21
9.45      10.50     8.76      12.72     10.69
2x2x2 CubeFinal6 2.28 3.52
5.76      4.62      2.28      3.04      2.90
 
Tokai Open AM 2024
EventRoundPlaceBestAverageDetail
3x3x3 CubeFinal16 8.92 10.92
11.23     8.92      9.27      13.89     12.26
3x3x3 One-HandedFinal7 12.98 14.50
14.79     15.29     14.06     12.98     14.66
First round9 13.54 16.63
19.37     13.54     15.86     DNF       14.66
 
Kanazawa 2024
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round28 9.94 10.96
11.93     10.23     12.94     9.94      10.71
First round25 10.36 10.93
11.76     11.94     10.39     10.63     10.36
4x4x4 CubeFirst round17 38.69 42.21
44.16     38.69     43.23     39.24     48.41
3x3x3 BlindfoldedFinal13 59.47 DNF
59.47     1:06.33   DNF
 
Tokai Challenge Gamma 2024
EventRoundPlaceBestAverageDetail
ClockFinal6 4.01 6.36
4.01      9.39      6.82      4.28      7.98
First round3 4.28 5.08
5.44      4.85      6.78      4.95      4.28
 
Ota Blind New Year 2024
EventRoundPlaceBestAverageDetail
ClockFinal2 5.14 5.51
7.25      5.14      5.36      5.56      5.61
5x5x5 BlindfoldedFinal3 14:33.00 DNF
14:33.00   DNF       DNF
3x3x3 Multi-BlindFinal11 9/12 58:55 
9/12 58:55
 
Ayase FMC 2023
EventRoundPlaceBestAverageDetail
3x3x3 Fewest MovesFinal14 37 38.67
42        37        37
 
Tokyo Challenge VIII 2023
EventRoundPlaceBestAverageDetail
3x3x3 CubeFinal9 9.67 10.64
10.06     10.33     9.67      11.70     11.54
 
Otsu Biwako Autumn 2023
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round26 10.74 12.21
10.74     12.72     13.14     12.99     10.93
3x3x3 One-HandedFinal7 13.71 14.68
13.71     16.50     14.57     15.71     13.75
First round6 11.48 14.31
13.31     11.48     18.88     15.40     14.22
PyraminxFinal9 4.43 5.51
6.35      4.73      4.43      DNF       5.45
Square-1Final12 11.35 16.33
21.87     19.20     13.76     16.04     11.35
 
WCA World Championship 2023
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round552 10.01 12.10
10.01     11.93     13.78     12.60     11.77
5x5x5 CubeFirst round201 1:09.88 1:12.34
1:12.84   1:10.63   1:17.12   1:13.56   1:09.88
6x6x6 CubeFirst round154 2:12.22 2:18.32
2:26.15   2:16.60   2:12.22
3x3x3 BlindfoldedFirst round102 1:10.13 1:19.44
1:32.25   1:15.95   1:10.13
3x3x3 One-HandedFirst round192 14.86 18.00
20.89     18.20     17.75     14.86     18.05
MegaminxFirst round185 58.56 1:09.91
1:20.35   1:02.86   1:06.53   1:21.60   58.56
PyraminxFirst round178 5.20 5.56
5.20      5.60      5.58      5.50      6.20
SkewbFirst round201 3.63 6.70
7.47      3.63      9.70      6.54      6.08
4x4x4 BlindfoldedFinal28 5:37.18 DNF
DNF       DNF       5:37.18
5x5x5 BlindfoldedFinal24 18:10.00 DNF
18:10.00   DNF       DNS
 
Ayase Summer 2023
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round35 11.13 12.67
11.98     11.42     14.61     16.30     11.13
5x5x5 CubeFirst round17 1:12.29 1:15.55
1:15.54   1:20.64   1:12.29   1:16.98   1:14.14
3x3x3 One-HandedFinal7 13.94 15.94
20.08     14.51     13.94     16.28     17.02
First round10 12.72 17.14
18.29     12.72     16.31     19.52     16.83
MegaminxFirst round21 1:08.71 1:13.27
1:10.78   1:08.71   1:19.17   1:28.02   1:09.85
 
Ota Blind Summer 2023
EventRoundPlaceBestAverageDetail
7x7x7 CubeFinal9 3:35.32 3:44.16
3:41.90   3:35.32   3:55.27
3x3x3 BlindfoldedSecond round13 1:27.52 2:01.43
1:27.52   2:10.06   2:26.72
First round21 1:33.30 1:48.82
1:40.81   1:33.30   2:12.35
4x4x4 BlindfoldedFinal10 8:46.14 9:07.40
9:13.33   8:46.14   9:22.72
 
Challenge BLD 2023
EventRoundPlaceBestAverageDetail
3x3x3 BlindfoldedFinal18 2:58.65 DNF
DNF       2:58.65   DNF
 
Hiroshima Spring 2023
EventRoundPlaceBestAverageDetail
3x3x3 CubeFirst round28 8.62 11.58
8.62      11.37     10.52     13.26     12.86
3x3x3 BlindfoldedFinal8 1:11.93 DNF
1:11.93   1:29.99   DNF
MegaminxFinal21 1:07.44 1:18.04
1:12.93   1:26.08   1:20.60   1:20.60   1:07.44
PyraminxFinal6 4.58 5.48
8.89      5.22      5.50      4.58      5.71
First round9 4.74 6.11
9.19      4.74      4.80      7.93      5.60
SkewbFinal16 5.48 9.10
6.30      18.15     10.61     5.48      10.39
 
Tokyo Challenge Winter C 2023
EventRoundPlaceBestAverageDetail
3x3x3 CubeFinal4 10.43 11.49
12.86     10.97     10.64     10.43     14.45
 
Ota Blind Winter 2022
EventRoundPlaceBestAverageDetail
4x4x4 BlindfoldedFinal7 9:10.23 DNF
DNF       DNF       9:10.23
5x5x5 BlindfoldedFinal9 20:20.00 DNF
DNF       20:20.00   DNS
3x3x3 Multi-BlindFinal16 2/3 15:32 
2/3 15:32
 
Ayase Autumn B 2022
EventRoundPlaceBestAverageDetail
3x3x3 CubeSecond round26 10.60 13.10
10.60     14.28     12.39     14.55     12.63
First round26 11.81 13.15
12.60     11.93     17.28     11.81     14.92
5x5x5 CubeFinal15 1:11.30 1:15.98
1:11.96   1:13.44   1:24.10   1:11.30   1:22.54
6x6x6 CubeFinal12 2:21.90 2:32.38
2:35.47   2:21.90   2:39.78
MegaminxFirst round17 1:14.39 1:34.47
1:30.53   1:49.70   1:14.39   1:51.73   1:23.18
 
Ota Blind Summer 2022
EventRoundPlaceBestAverageDetail
3x3x3 BlindfoldedFinal16 1:47.57 DNF
DNF       2:43.33   1:47.57
First round20 1:50.93 2:05.36
1:50.93   2:06.10   2:19.06
 
Minatomirai 2022
EventRoundPlaceBestAverageDetail
3x3x3 CubeFinal32 10.99 12.32
12.94     11.90     10.99     17.55     12.13
First round30 10.89 12.39
10.89     11.07     12.09     14.01     14.40
3x3x3 BlindfoldedFinal12 1:41.41 2:13.80
1:41.41   2:24.64   2:35.34
3x3x3 One-HandedFinal11 15.42 17.45
18.43     17.34     15.42     16.57     18.62
SkewbFinal12 6.52 7.59
9.46      7.98      6.52      7.36      7.42
 
Tokai Winter PM 2021
EventRoundPlaceBestAverageDetail
3x3x3 CubeFinal14 11.30 12.96
13.94     12.04     11.30     DNF       12.89
No.DateNameRegionCity
252025-05-31Kanto Spring 2025JapanOta, Tokyo
242025-05-17Tokyo FMC Spring 2025JapanOta, Tokyo
232025-05-10Tokyo BLD Spring 2025JapanOta, Tokyo
222025-04-12Tokai Spring 2025JapanTokai, Aichi
212025-03-20Ota Spring 2025JapanOta, Tokyo
202025-02-16Tokyo Open FMC Winter 2025JapanOta, Tokyo
192024-12-07Shonan AM 2024JapanFujisawa, Kanagawa
182024-09-15Tokai Open AM 2024JapanKariya, Aichi
172024-05-25Kanazawa 2024JapanKanazawa, Ishikawa
162024-03-31Tokai Challenge Gamma 2024JapanKariya, Aichi
152024-01-20Ota Blind New Year 2024JapanOta, Tokyo
142023-11-26Ayase FMC 2023JapanAdachi, Tokyo
132023-11-04Tokyo Challenge VIII 2023JapanOta, Tokyo
122023-09-23Otsu Biwako Autumn 2023JapanOtsu, Shiga
112023-08-12~15WCA World Championship 2023Republic of Korea인천광역시 (Incheon)
102023-07-17Ayase Summer 2023JapanAdachi, Tokyo
92023-07-08Ota Blind Summer 2023JapanOta, Tokyo
82023-04-09Challenge BLD 2023JapanOta, Tokyo
72023-03-25Hiroshima Spring 2023JapanFukuyama, Hiroshima
62023-02-12Tokyo Challenge Winter C 2023JapanOta, Tokyo
52022-12-18Ota Blind Winter 2022JapanOta, Tokyo
42022-11-06Ayase Autumn B 2022JapanAdachi, Tokyo
32022-07-30Ota Blind Summer 2022JapanOta, Tokyo
22022-04-29Minatomirai 2022JapanYokohama, Kanagawa
12021-12-11Tokai Winter PM 2021JapanKariya, Aichi