Chau Ka Wai (周嘉偉)

Country WCA ID Gender Competitions Completed Solves
Hong Kong 2008WAIC01 Male 25 1084

Current Personal Records

Event NR CR WR Single Average WR CR NR
3x3x3 Cube 24 1298 3648 8.90 10.33 2498 856 15
2x2x2 Cube 10 577 2220 1.85 2.96 1189 321 7
4x4x4 Cube 12 419 1178 33.36 38.13 1059 371 9
5x5x5 Cube 30 1027 2710 1:20.47 1:28.66 2633 1013 28
3x3x3 Blindfolded 18 1345 3595 3:20.34
3x3x3 One-Handed 44 2672 6490 19.77 25.91 7837 3355 51
Pyraminx 29 2626 8182 5.40 9.22 10852 3638 42
Skewb 108 9373 32012 33.98
Square-1 31 1263 4411 27.22 35.76 4253 1226 32
3x3x3 Multi-Blind 11 601 2030 1/2 6:04

Medal Collection

Gold Silver Bronze
4 4 6

Record Collection

WR CR NR
4
Competition Round Place Single Average Solves
3x3x3 Cube
WCA World Championship 2019 Second round 256 9.03 11.73 10.9212.759.0311.5113.28
First round 180 9.05 10.33 10.589.0511.4710.1610.25
Hong Kong Cube Day 2019 Second round 13 10.27 11.59 12.0012.7110.5710.2712.19
First round 30 10.33 12.90 14.4312.3910.3311.8814.53
WCA Asian Championship 2018 First round 128 11.08 12.46 12.2011.0813.5613.0212.15
Cross-strait Cubing Exchange 2018 Second round 22 10.10 11.39 12.4510.3111.4012.5510.10
First round 17 9.69 11.15 12.039.6911.9610.4611.02
China's 10th Anniversary Championship 2017 Semi Final 53 10.44 11.88 11.4015.0912.9911.2410.44
Second round 54 10.49 11.87 11.1812.5512.2012.2410.49
First round 38 10.05 11.17 11.7415.9611.3210.4410.05
Hong Kong Open 2017 Final 12 9.73 11.67 9.7313.0312.7510.9811.28
First round 12 10.59 11.83 12.0010.5911.6911.8013.42
Cross-strait Cubing Exchange 2017 Second round 25 10.30 12.25 11.5715.8712.9910.3012.18
First round 22 8.93 11.64 12.1010.698.9312.1214.47
World Rubik's Cube Championship 2017 Second round 338 10.83 13.42 10.8312.8012.7616.1014.70
First round 272 9.24 12.19 14.6311.5311.2513.799.24
Hong Kong Cube Day 2017 Final 13 10.15 12.79 13.4010.1512.7412.5913.04
First round 10 11.40 11.71 11.9311.4613.9911.4011.75
Arnold Classic Asia 2016 Final 10 10.61 14.04 10.6110.8917.9113.31DNF
Second round 7 11.30 11.66 11.3017.3011.4711.7111.80
First round 8 10.72 11.42 10.7212.0010.8614.8411.39
China Championship 2015 Second round 66 10.54 12.76 10.5414.0212.4017.1211.87
First round 61 11.67 12.38 12.5011.7011.6712.9416.62
Hong Kong Summer Cube Day 2015 Final 7 12.11 12.91 12.1119.7412.1213.7812.84
Second round 4 9.83 11.02 11.599.8311.0811.6210.38
First round 8 11.88 12.69 12.0511.8812.8314.9113.19
Hong Kong Spring Cube Day 2015 Final 2 10.05 12.61 13.3815.2111.1513.3110.05
Second round 3 10.13 13.28 14.7115.2210.1314.5010.63
First round 3 10.41 12.54 14.0310.69DNF10.4112.90
Back To Cubing Hong Kong 2015 Final 4 10.52 11.90 10.5211.8411.9317.3611.93
First round 3 11.00 12.18 12.2113.1811.1614.3011.00
Guangdong Open 2014 Final 10 10.41 12.80 12.9213.3110.4113.3712.17
Semi Final 12 9.54 11.93 11.1413.099.5411.5614.58
Second round 7 9.60 11.70 9.6010.8010.9613.3415.52
First round 9 8.90 NR 11.62 11.9513.4610.208.9012.71
Guangdong Open 2013 Final 9 10.27 12.40 13.5811.8011.8313.9710.27
Semi Final 10 10.72 12.03 11.4513.4711.1810.7214.06
Second round 9 11.27 12.47 12.7511.2714.1013.0711.58
First round 13 11.72 13.05 11.7213.8113.1312.5213.50
Asian Championship 2012 Semi Final 17 10.46 11.68 10.9311.8210.4613.6112.28
Second round 15 9.56 11.54 12.6512.4910.109.5612.02
First round 27 11.25 13.12 13.8911.2512.3615.6613.10
Hong Kong Open 2010 Final 10 9.81 14.14 DNF12.5614.949.8114.93
Second round 6 12.68 13.55 13.2712.6816.8613.5013.88
First round 4 10.68 12.87 12.9316.9613.1510.6812.53
Hong Kong Cube Day 2010 Final 11 14.52 22.04 15.0614.5236.3614.69DNF
First round 9 13.65 15.65 18.4713.65DNF14.3014.18
Guangdong Open 2009 Final 9 12.53 14.51 16.3112.5315.1115.1513.28
Second round 27 14.15 16.80 14.1514.75DNF17.7817.88
First round 9 14.03 14.93 15.3416.1115.2514.2114.03
Shenzhen Summer Open 2009 Final 12 13.46 15.88 18.7114.8313.4617.6915.13
Second round 6 13.31 14.46 14.4414.5514.3817.6913.31
First round 9 12.81 14.73 14.6117.6512.8116.7812.81
Macau Rubik's Open 2009 Final 6 13.58 15.76 16.4314.6816.16DNF13.58
Second round 5 14.15 15.20 15.0314.1515.4315.4015.16
First round 3 13.18 15.13 17.6314.4714.5213.1816.40
Hong Kong Open 2009 Second round 33 15.96 DNF DNF16.3416.84DNF15.96
First round 23 15.19 17.07 16.5615.1918.2816.3823.46
Hong Kong Open 2008 First round 55 25.50 36.1625.5033.91
2x2x2 Cube
WCA World Championship 2019 First round 273 2.36 4.84 5.466.244.402.364.67
Hong Kong Cube Day 2019 First round 47 4.80 5.83 4.817.7010.114.804.99
WCA Asian Championship 2018 First round 105 4.39 4.76 4.4713.494.394.495.33
Cross-strait Cubing Exchange 2018 Second round 31 3.58 4.88 13.274.964.443.585.23
First round 33 3.74 5.18 6.044.913.747.624.60
China's 10th Anniversary Championship 2017 Second round 67 3.49 5.25 4.466.135.745.543.49
First round 63 3.11 5.10 5.605.823.897.113.11
Hong Kong Open 2017 Final 12 4.09 4.47 4.704.096.124.604.11
First round 1 1.85 3.49 4.862.535.893.081.85
Cross-strait Cubing Exchange 2017 First round 22 3.61 4.49 3.614.524.454.495.10
World Rubik's Cube Championship 2017 First round 273 3.57 4.84 6.235.153.574.315.05
Arnold Classic Asia 2016 Final 6 2.47 5.09 4.425.327.632.475.54
Second round 8 3.04 4.30 4.465.213.524.923.04
First round 29 4.11 5.64 6.585.135.204.1110.21
China Championship 2015 Second round 43 4.35 5.13 4.374.356.785.565.47
First round 9 2.49 2.96 NR 5.902.613.402.492.88
Hong Kong Summer Cube Day 2015 Final 5 3.77 4.33 4.464.383.775.934.16
First round 14 4.20 5.44 4.616.105.604.20DNF
Hong Kong Spring Cube Day 2015 Final 9 5.47 6.28 5.477.096.535.666.65
First round 4 2.91 5.07 6.004.5210.152.914.68
Back To Cubing Hong Kong 2015 Final 8 4.59 5.36 4.596.465.305.385.41
First round 7 3.91 5.30 5.905.385.113.915.40
Guangdong Open 2014 Second round 23 4.73 5.74 6.8712.854.735.404.96
First round 20 3.62 4.95 4.875.203.625.234.78
Guangdong Open 2013 Second round 28 4.18 5.84 5.305.906.3216.474.18
First round 19 4.28 5.29 4.345.615.938.914.28
Asian Championship 2012 Second round 17 4.44 5.06 4.445.575.034.975.19
First round 22 3.96 4.94 4.685.077.743.965.08
Hong Kong Open 2010 Second round 15 4.08 8.31 DNF5.4014.435.114.08
First round 12 5.05 5.74 6.945.565.346.335.05
Hong Kong Cube Day 2010 First round 13 4.25 6.71 4.255.668.555.91DNF
Guangdong Open 2009 Final 11 5.50 6.56 5.556.475.507.65DNF
First round 4 4.72 5.34 5.387.184.944.725.71
Shenzhen Summer Open 2009 Final 11 5.30 7.04 5.815.305.72DNF9.58
First round 15 4.40 6.82 5.285.864.40DNF9.33
Macau Rubik's Open 2009 Final 2 4.06 5.95 6.284.066.935.386.18
Hong Kong Open 2009 Final 11 2.96 6.97 5.758.968.716.442.96
First round 11 5.38 6.39 7.275.915.386.00DNF
4x4x4 Cube
WCA World Championship 2019 First round 245 42.71 47.79 50.7648.9352.4442.7143.69
Hong Kong Cube Day 2019 First round 19 40.65 46.84 47.7549.9342.8551.1540.65
WCA Asian Championship 2018 First round 106 42.32 46.09 50.2542.3250.5845.2542.76
Cross-strait Cubing Exchange 2018 First round 24 33.36 44.63 33.3638.9351.5752.0143.39
China's 10th Anniversary Championship 2017 First round 41 42.90 45.22 47.6747.1045.3143.2442.90
Hong Kong Open 2017 Final 5 38.37 43.68 47.0247.4838.3741.7442.27
First round 4 37.13 40.51 41.1637.1342.7837.5850.75
Cross-strait Cubing Exchange 2017 Final 12 46.02 50.25 46.0257.5951.9346.9551.88
First round 11 36.21 38.13 36.2149.2038.8937.7637.74
World Rubik's Cube Championship 2017 First round 114 38.67 41.76 41.8943.0638.6745.1040.32
Hong Kong Cube Day 2017 Final 11 41.21 45.72 49.5745.0648.2143.8941.21
Arnold Classic Asia 2016 Final 10 44.39 50.67 1:08.3048.6048.6944.3954.73
Second round 9 43.00 46.23 47.8351.4543.0046.8743.98
First round 7 36.98 44.89 43.5249.3050.8836.9841.86
China Championship 2015 Second round 45 41.55 48.39 55.9246.8641.5549.5048.81
First round 31 42.52 45.78 46.6358.1142.5244.5146.21
Hong Kong Summer Cube Day 2015 First round 9 44.52 48.40 54.2546.6950.3148.1944.52
Hong Kong Spring Cube Day 2015 Final 5 44.69 48.84 53.7846.8046.4153.3144.69
First round 3 41.71 48.07 43.5350.5850.5941.7150.11
Back To Cubing Hong Kong 2015 Final 10 52.43 55.11 52.431:00.0854.8856.9053.56
Guangdong Open 2014 Final 3 36.73 40.45 NR 36.7352.7438.5440.8242.00
Second round 10 41.58 45.94 45.5553.7843.4941.5848.78
First round 7 41.32 45.12 41.4241.3250.8743.0658.66
Guangdong Open 2013 Second round 29 49.46 DNF 1:07.03DNF49.46DNF54.15
First round 14 47.22 53.59 57.7747.2251.2153.4356.13
Asian Championship 2012 First round 31 51.96 54.45 54.0451.961:06.0956.0653.24
Hong Kong Open 2010 Final 8 52.13 56.31 58.2852.1357.581:02.0853.08
Second round 10 54.21 59.22 57.1354.2159.22DNF1:01.31
First round 16 56.44 1:08.18 1:02.271:11.271:11.001:20.8656.44
Hong Kong Cube Day 2010 Final 8 1:01.34 1:05.55 1:10.021:04.751:03.031:08.881:01.34
First round 6 53.41 1:00.48 1:04.8153.4157.091:08.0859.55
Guangdong Open 2009 Final 10 56.61 1:07.66 1:09.331:05.1156.611:08.531:18.61
First round 3 52.38 58.14 52.381:00.801:00.3053.31DNF
Shenzhen Summer Open 2009 Final 12 1:01.58 1:13.65 1:11.831:10.211:01.581:18.91DNF
First round 7 1:01.65 1:06.95 1:06.431:07.531:01.651:06.90DNF
Macau Rubik's Open 2009 Final 3 53.19 1:02.80 1:00.151:19.6853.191:09.3458.90
Hong Kong Open 2009 First round 10 1:00.41 1:14.88 1:07.431:00.411:08.861:37.881:28.36
5x5x5 Cube
WCA World Championship 2019 First round 224 1:22.15 1:32.29 1:43.591:22.151:34.781:36.231:25.86
WCA Asian Championship 2018 First round 112 1:31.81 1:36.97 1:31.81DNF1:35.011:41.661:34.23
Cross-strait Cubing Exchange 2018 First round 26 1:28.53 1:32.92 1:31.701:28.531:33.001:35.011:34.06
China's 10th Anniversary Championship 2017 First round 43 1:25.52 1:28.66 1:27.271:27.171:34.511:31.551:25.52
Cross-strait Cubing Exchange 2017 First round 39 1:26.56 1:35.44 1:35.401:37.161:40.751:33.761:26.56
World Rubik's Cube Championship 2017 First round 209 1:33.53 1:39.65 1:49.961:37.641:33.531:39.331:41.98
Hong Kong Cube Day 2017 Final 20 1:39.86 1:48.44 1:39.861:44.431:42.311:58.57DNF
Arnold Classic Asia 2016 First round 10 1:20.47 1:35.41 1:35.241:36.541:20.471:44.111:34.45
China Championship 2015 First round 47 1:25.75 1:38.06 1:40.811:41.731:32.571:40.811:25.75
Hong Kong Summer Cube Day 2015 Final 15 1:29.46 2:00.07 1:59.721:29.462:00.382:11.002:00.10
Hong Kong Spring Cube Day 2015 Final 5 1:33.97 1:41.35 1:48.961:52.811:33.971:37.531:37.55
Back To Cubing Hong Kong 2015 Final 9 1:40.40 1:47.75 1:44.411:50.191:40.401:59.001:48.65
Guangdong Open 2014 Second round 22 1:50.45 1:59.05 2:04.712:14.732:01.281:51.161:50.45
First round 22 1:43.84 1:50.49 1:51.981:43.841:45.662:09.901:53.84
Guangdong Open 2013 Final 12 1:35.02 1:53.42 2:12.881:44.591:35.022:21.241:42.80
First round 12 1:37.13 1:43.62 1:48.751:37.131:49.881:42.781:39.33
Asian Championship 2012 First round 42 1:39.51 2:14.03 1:39.512:07.682:55.431:39.632:54.79
Hong Kong Cube Day 2010 First round 13 1:54.78 2:13.99 2:12.942:27.11DNF2:01.911:54.78
Shenzhen Summer Open 2009 First round 16 2:15.91 2:42.29 2:42.112:43.802:15.912:47.802:40.96
Hong Kong Open 2009 Final 16 2:29.15 2:41.36 2:41.272:43.382:29.152:54.152:39.44
3x3x3 Blindfolded
Hong Kong Open 2017 Final 11 DNF DNF DNFDNSDNS
China Championship 2015 First round 30 DNF DNF DNFDNFDNF
Hong Kong Summer Cube Day 2015 Final 6 DNF DNF DNFDNFDNF
Back To Cubing Hong Kong 2015 Final 6 4:26.24 DNF DNFDNF4:26.24
Guangdong Open 2014 First round 15 DNF DNF DNFDNFDNF
Guangdong Open 2013 First round 10 4:50.07 DNF DNFDNF4:50.07
Asian Championship 2012 First round 14 4:00.88 DNF DNF4:00.88DNF
Hong Kong Open 2010 Final 3 3:20.34 DNF DNF3:20.344:46.53
Guangdong Open 2009 First round 10 DNF DNF DNFDNFDNF
Shenzhen Summer Open 2009 Final 7 DNF DNF DNFDNFDNF
Macau Rubik's Open 2009 Final 4 5:01.28 DNF DNFDNF5:01.28
Hong Kong Open 2009 Final 8 DNF DNF DNFDNFDNF
3x3x3 Fewest Moves
Guangdong Open 2013 Final 9 DNF DNF
Asian Championship 2012 Final 14 DNF DNF
3x3x3 One-Handed
China's 10th Anniversary Championship 2017 First round 94 30.23 31.9930.23
China Championship 2015 First round 124 22.91 28.05 31.3122.9129.0827.4927.59
Hong Kong Summer Cube Day 2015 First round 18 30.08 33.66 36.5930.0836.9132.2232.18
Hong Kong Spring Cube Day 2015 First round 6 21.90 27.34 21.9028.6323.0030.3832.91
Back To Cubing Hong Kong 2015 Final 9 19.77 26.87 23.0831.0826.4431.3619.77
Guangdong Open 2014 Second round 19 21.25 25.91 21.2526.41DNF24.8226.49
First round 31 23.18 26.19 23.3226.1029.5229.1623.18
Guangdong Open 2013 Second round 26 25.22 29.34 26.5025.2228.0833.4342.90
First round 22 23.64 26.64 29.9627.8423.6426.2925.80
Asian Championship 2012 First round 35 22.59 26.63 29.8022.5927.0225.2827.60
Hong Kong Open 2010 Final 11 24.36 28.03 30.1829.0832.0824.8324.36
Second round 10 24.06 26.67 24.41DNF24.0629.3426.27
First round 13 25.05 28.88 29.0628.8128.7730.1325.05
Hong Kong Cube Day 2010 Final 7 23.13 31.44 DNF23.1326.8037.1830.33
First round 8 26.44 30.17 31.5531.4426.4430.2828.78
Guangdong Open 2009 Final 9 22.27 29.13 22.2728.1632.6929.3129.93
First round 8 24.96 28.77 30.4024.9627.5528.7230.03
Shenzhen Summer Open 2009 Final 13 28.90 53.28 39.52DNF1:18.7741.5528.90
First round 8 25.75 30.80 30.0330.1934.9132.1925.75
Macau Rubik's Open 2009 Final 12 38.11 38.60 38.46DNF38.6838.6538.11
Hong Kong Open 2009 First round 20 30.88 36.34 36.5830.8834.7237.71DNF
Pyraminx
Cross-strait Cubing Exchange 2018 First round 39 11.65 12.34 15.5511.6511.8113.2311.99
China's 10th Anniversary Championship 2017 First round 82 7.55 10.69 23.827.558.0814.139.86
Cross-strait Cubing Exchange 2017 First round 32 8.00 10.50 9.3512.558.0028.169.59
World Rubik's Cube Championship 2017 First round 357 5.40 11.43 12.865.4013.1210.1311.29
Hong Kong Side Event Day 2017 Final 25 10.25 14.36 13.9414.9710.2518.4414.18
Arnold Classic Asia 2016 First round 18 10.40 12.59 13.0610.4010.65DNF14.07
China Championship 2015 First round 75 9.22 10.96 20.499.2210.5510.1612.18
Hong Kong Summer Cube Day 2015 Final 11 9.00 11.61 13.0810.0517.7211.699.00
Hong Kong Spring Cube Day 2015 Final 3 8.46 11.65 14.9610.509.508.4616.91
Back To Cubing Hong Kong 2015 Final 6 10.05 12.10 12.8010.0520.3810.9312.56
Guangdong Open 2014 Second round 12 6.23 9.22 9.0313.826.236.6212.02
First round 21 8.84 11.34 10.4713.498.8410.2513.30
Guangdong Open 2013 First round 20 7.60 14.36 16.1319.8915.5011.457.60
Asian Championship 2012 First round 31 9.73 DNF DNF20.599.73DNF22.33
Guangdong Open 2009 First round 28 14.56 32.34 32.6632.5814.5632.1132.33
Skewb
Guangdong Open 2014 First round 46 33.98 33.98DNF
Square-1
China's 10th Anniversary Championship 2017 First round 32 42.97 47.3642.97
Hong Kong Open 2017 Final 18 32.89 35.76 35.8734.9232.8940.9836.49
Cross-strait Cubing Exchange 2017 First round 25 30.89 40.91 33.891:02.1542.9645.8730.89
Hong Kong Side Event Day 2017 Final 15 27.22 40.50 41.6559.2646.8727.2232.97
Hong Kong Cube Day 2017 Final 12 28.10 46.47 56.4344.811:24.7038.1728.10
Guangdong Open 2014 First round 21 DNF DNFDNF
Asian Championship 2012 First round 15 36.15 49.69 55.6853.4636.1552.4743.13
Hong Kong Open 2010 Final 4 30.43 40.81 34.9741.3046.1630.431:17.84
3x3x3 Multi-Blind
Guangdong Open 2013 Final 8 DNF DNF
Asian Championship 2012 Final 7 1/2 6:04 1/2 6:04
Guangdong Open 2009 Final 5 DNF DNF
Magic
Asian Championship 2012 Final 3 1.00 1.14 2.691.381.031.001.00
First round 2 0.95 1.05 1.081.691.001.060.95
Hong Kong Open 2010 First round 25 0.86 DNF 2.90DNFDNFDNF0.86
Hong Kong Cube Day 2010 Final 1 0.91 1.01 0.93DNF0.961.130.91
First round 1 0.84 0.91 0.910.960.900.910.84
Guangdong Open 2009 Final 1 0.90 0.92 0.941.020.900.930.90
First round 1 0.93 1.03 0.93DNF1.030.941.11
Shenzhen Summer Open 2009 Final 1 0.94 0.99 1.001.341.000.940.97
First round 1 0.90 0.93 0.940.940.900.930.91
Macau Rubik's Open 2009 Final 2 1.00 1.03 1.001.061.031.161.00
First round 1 1.02 1.06 1.021.811.081.061.03
Hong Kong Open 2009 Final 14 0.93 2.32 2.903.033.051.020.93
First round 3 0.97 1.01 0.972.970.971.061.00
Hong Kong Open 2008 Final 10 1.05 3.05 DNF3.063.053.051.05
First round 1 1.05 1.05DNF3.25
Master Magic
Asian Championship 2012 Final 5 2.80 3.27 DNF3.053.403.352.80
First round 9 2.86 4.07 5.673.515.853.022.86
Hong Kong Open 2010 First round 10 2.93 4.02 3.052.934.884.164.84
Hong Kong Cube Day 2010 Final 4 2.50 2.79 2.883.362.502.712.77
First round 1 2.46 2.79 2.582.942.843.182.46
Guangdong Open 2009 Final 4 2.65 3.78 3.053.964.33DNF2.65
First round 1 2.81 2.96 2.813.112.945.562.84
Shenzhen Summer Open 2009 Final 1 2.59 2.71 NR 2.652.772.592.7111.94
First round 2 2.58 2.76 3.054.632.632.592.58
Macau Rubik's Open 2009 Final 2 2.72 3.11 2.804.932.722.773.75
First round 2 2.96 3.26 3.473.285.582.963.02
Hong Kong Open 2009 Final 3 2.59 2.96 3.832.713.312.862.59
First round 9 2.93 4.66 DNF4.364.942.934.68
Hong Kong Open 2008 Final 4 3.94 4.47 6.064.344.363.944.71

History of National Records

Single Average Competition Round Solves
3x3x3 Cube
8.90 Guangdong Open 2014 First round
2x2x2 Cube
2.96 China Championship 2015 First round 5.902.613.402.492.88
4x4x4 Cube
40.45 Guangdong Open 2014 Final 36.7352.7438.5440.8242.00
Master Magic
2.71 Shenzhen Summer Open 2009 Final 2.652.772.592.7111.94

Continental Championship Podiums

Event Place Single Average Solves
Asian Championship 2012
Magic 3 1.00 1.14 2.691.381.031.001.00

National Championship Podiums

Event Place Single Average Solves
Arnold Classic Asia 2016
2x2x2 Cube 2 2.47 5.09 4.425.327.632.475.54
Asian Championship 2012
3x3x3 Multi-Blind 3 1/2 6:04 1/2 6:04
Magic 3 1.00 1.14 2.691.381.031.001.00
Master Magic 2 2.80 3.27 DNF3.053.403.352.80
Hong Kong Open 2010
3x3x3 Blindfolded 3 3:20.34 DNF DNF3:20.344:46.53
Hong Kong Open 2009
Master Magic 3 2.59 2.96 3.832.713.312.862.59