Joon Cha (차준혁)

Region WCA ID Gender Competitions Completed Solves
Republic of Korea 2012CHAJ01 Male 20 721

Current Personal Records

Event NR CR WR Single Average WR CR NR
3x3x3 Cube 106 1607 5012 8.13 10.06 5096 1695 107
2x2x2 Cube 28 453 2291 1.50 3.22 3643 907 46
4x4x4 Cube 90 1444 4258 36.89 41.35 3591 1234 78
5x5x5 Cube 82 1127 3361 1:13.87 1:24.62 3882 1326 93
6x6x6 Cube 99 1263 4311 2:57.49 3:06.22 4052 1206 95
7x7x7 Cube 63 792 2495 3:54.91 4:20.67 2843 882 66
3x3x3 Blindfolded 52 776 2334 1:42.62 2:30.99 1657 490 29
3x3x3 Fewest Moves 7 77 358 25 31.33 512 121 14
3x3x3 One-Handed 102 1892 5310 16.36 20.64 5675 2096 111
Clock 50 543 2379 8.26 9.55 2099 460 41
Megaminx 71 1066 3885 1:14.59 1:20.34 3420 951 62
Pyraminx 48 1568 5945 3.89 7.17 8901 2589 92
Skewb 220 4337 16686 6.87 8.11 9344 2618 149
Square-1 81 959 4329 18.90 27.35 4856 1110 91

Medal Collection

Gold Silver Bronze
1 0 1

Record Collection

WR CR NR
2
Competition Round Place Single Average Solves
3x3x3 Cube
Anyang Haseyo 2024 First round 25 8.66 10.68 14.488.6611.159.8911.01
Seoul Open 2024 Second round 24 9.76 10.65 9.779.7612.7412.289.89
First round 19 8.79 10.27 9.0012.768.7911.2510.55
Korean Championship 2023 Semi Final 18 8.19 10.31 11.6810.448.808.1911.75
Second round 18 9.49 10.06 10.1010.1710.509.929.49
First round 19 8.13 10.06 10.8310.4310.068.139.70
Suncheon Fall 2023 Semi Final 20 9.95 10.78 11.6710.259.9512.9310.43
Second round 24 9.37 10.75 10.4211.329.3711.8710.52
First round 20 9.55 11.12 12.0412.489.559.8011.52
Rubik's WCA World Championship 2023 Second round 316 8.86 10.42 9.8711.6313.179.768.86
First round 373 9.15 10.48 9.159.3613.8410.6811.41
Seoul Spring 2023 First round 48 11.62 12.20 13.5711.6212.8411.7112.06
Daegu Hot Spring 2023 First round 29 10.26 11.62 16.7912.2210.2611.8010.84
3x3x3 HanMaDang 2017 Final 12 9.94 10.64 9.9412.3910.5310.0511.35
First round 13 8.39 10.74 12.349.7810.5811.868.39
Busan Summer 2014 Final 6 10.12 11.57 10.1210.6313.2112.7111.38
First round 6 9.89 11.32 12.3110.409.8911.2514.15
National Capital Region 2014 Final 8 11.02 12.54 11.4014.3111.0213.6812.55
Second round 7 10.05 10.60 10.1910.9610.0511.3110.65
First round 8 11.56 12.24 12.5611.5614.9012.3111.86
Toronto Open Spring 2014 Final 6 10.50 12.33 13.3311.7510.5011.9214.30
Second round 5 9.53 11.37 11.2111.0117.229.5311.90
First round 6 10.39 11.02 11.7610.6710.3916.2010.63
Montréal Open 2014 Final 5 10.27 12.71 14.5013.2310.2712.7612.14
Second round 5 10.59 11.99 12.3812.4310.5916.2111.16
First round 5 10.00 11.46 10.0012.6810.6611.0513.06
Canadian Open 2013 Second round 27 11.68 14.27 14.9014.5611.6813.3418.40
First round 19 11.47 13.19 13.7812.9313.1511.4713.50
National Capital Region 2013 Final 9 11.81 13.59 13.4413.7214.2513.6111.81
Second round 9 12.81 14.21 14.0016.6514.3012.8114.34
First round 9 12.46 15.00 15.1514.9615.0512.4615.00
Montréal Open 2013 Final 11 11.25 15.70 16.5316.8613.7111.2518.19
Second round 8 12.31 12.98 13.3312.9417.0612.3112.68
First round 11 12.78 15.06 12.7816.0016.0915.3813.81
Toronto Open Winter 2013 Second round 25 11.69 16.39 DNF14.8011.6914.8019.58
First round 14 11.72 14.86 16.6311.7214.9013.0516.77
Toronto Summer 2012 Second round 24 15.02 16.53 18.4317.2216.0816.2815.02
First round 23 13.38 15.92 13.3814.4717.5515.7518.75
2x2x2 Cube
Korean Championship 2023 Second round 14 3.26 3.75 3.263.835.623.983.45
First round 7 2.65 3.28 3.323.854.312.682.65
Ansan Autumn 2023 First round 32 3.79 4.57 4.684.854.973.794.18
Rubik's WCA World Championship 2023 First round 245 2.92 3.92 4.343.545.602.923.88
Seoul Spring 2023 Final 64 3.50 5.43 5.325.488.423.505.49
Daegu Hot Spring 2023 Final 10 2.90 3.57 5.183.092.903.933.70
Busan Summer 2014 Final 3 2.32 3.22 2.324.433.542.803.31
First round 2 2.22 3.60 3.644.093.362.223.80
National Capital Region 2014 Final 5 2.25 3.88 4.442.254.632.814.40
Second round 4 2.77 3.69 3.664.724.192.773.22
First round 6 2.30 4.18 3.274.592.306.614.68
Toronto Open Spring 2014 Second round 13 3.21 4.84 4.396.075.174.963.21
First round 10 3.19 4.29 3.983.875.223.195.02
Montréal Open 2014 Final 5 3.64 4.45 5.613.923.6410.353.81
Second round 4 3.96 4.52 4.584.476.103.964.52
First round 5 3.76 5.24 6.13DNF3.764.804.78
Canadian Open 2013 Second round 14 4.59 5.03 5.115.274.595.344.71
First round 16 3.93 4.80 4.976.845.153.934.28
National Capital Region 2013 Final 7 1.50 NR 4.24 4.691.504.255.653.78
Second round 6 4.78 5.20 4.906.214.785.255.44
First round 4 3.93 4.54 4.054.753.937.774.83
Montréal Open 2013 Final 6 2.96 4.61 4.554.934.634.662.96
Second round 6 3.61 5.10 6.905.653.614.974.68
First round 6 3.52 4.93 5.133.525.535.434.22
Toronto Open Winter 2013 Final 7 3.66 4.39 4.654.113.664.418.00
Second round 8 4.13 4.65 4.504.865.314.134.59
First round 12 4.11 4.81 5.034.596.464.814.11
Toronto Summer 2012 First round 24 6.00 6.90 6.228.728.066.006.43
4x4x4 Cube
Seoul Open 2024 First round 22 36.89 43.00 43.1536.8947.9542.7543.10
Korean Championship 2023 First round 15 38.61 41.35 40.7643.2140.0838.6145.25
Rubik's WCA World Championship 2023 First round 475 48.18 53.52 55.4051.2053.9648.181:00.60
Daegu Hot Spring 2023 First round 15 38.97 45.26 48.4843.4438.9746.5045.85
National Capital Region 2014 Final 6 42.96 49.63 50.1152.0242.9652.3346.77
Toronto Open Spring 2014 Final 11 44.27 53.06 53.5644.2754.2851.3455.24
Montréal Open 2014 Final 5 41.66 46.31 45.9254.7441.6644.9748.05
Canadian Open 2013 First round 13 53.91 56.29 56.6554.831:01.1953.9157.38
National Capital Region 2013 Final 7 54.27 1:02.10 59.361:05.6154.271:03.381:03.56
First round 7 54.33 59.61 54.3356.911:01.971:10.8059.96
Montréal Open 2013 Final 9 1:02.72 1:10.57 1:03.751:18.131:10.691:17.281:02.72
Toronto Open Winter 2013 Final 40 DNF DNFDNF
Toronto Summer 2012 Final 23 1:21.59 1:21.591:24.84
5x5x5 Cube
Korean Championship 2023 First round 25 1:20.69 1:26.61 1:25.201:27.151:27.481:28.271:20.69
Ansan Autumn 2023 First round 21 1:13.87 1:24.62 1:26.311:13.871:17.511:30.601:30.03
Rubik's WCA World Championship 2023 First round 372 1:24.95 1:34.07 1:37.671:24.951:41.021:38.671:25.88
Daegu Hot Spring 2023 First round 21 1:30.42 1:34.84 1:36.151:37.781:31.891:30.421:36.48
Toronto Open Spring 2014 Final 12 1:53.32 2:02.50 1:55.892:20.042:02.792:08.811:53.32
Canadian Open 2013 First round 17 1:45.78 1:58.30 2:04.181:54.502:05.381:56.211:45.78
Montréal Open 2013 Final 10 2:52.44 2:52.932:52.44
Toronto Open Winter 2013 Final 13 2:22.69 2:22.692:28.28
6x6x6 Cube
Rubik's WCA World Championship 2023 First round 277 3:09.79 3:09.79
Daegu Hot Spring 2023 Final 15 2:57.49 3:06.22 3:17.452:57.493:03.73
Montréal Open 2014 Final 6 3:53.62 4:00.19 3:53.624:02.254:04.71
Canadian Open 2013 Final 12 4:09.19 4:19.73 4:09.194:18.694:31.30
7x7x7 Cube
Rubik's WCA World Championship 2023 First round 179 3:54.91 4:20.67 3:54.914:59.004:08.11
Seoul Spring 2023 Final 21 4:12.75 4:26.66 4:43.594:12.754:23.65
Canadian Open 2013 Final 21 DNF DNF
3x3x3 Blindfolded
Korean Championship 2023 First round 9 1:42.62 DNF DNF1:42.62DNF
Rubik's WCA World Championship 2023 First round 142 2:12.85 DNF DNF2:16.752:12.85
Seoul Spring 2023 Final 13 2:22.34 2:30.99 2:22.342:35.712:34.93
3x3x3 HanMaDang 2017 Final 13 5:37.08 DNF DNF5:37.086:14.90
Busan Summer 2014 Final 5 2:51.09 4:16.70 5:41.114:17.902:51.09
National Capital Region 2014 Final 7 3:30.33 DNF DNFDNF3:30.33
Toronto Open Spring 2014 Final 8 3:26.40 DNF 3:26.40DNF3:56.93
Canadian Open 2013 First round 13 4:12.96 DNF 4:12.96DNFDNF
National Capital Region 2013 Final 7 5:22.21 DNF 5:22.21DNFDNF
3x3x3 Fewest Moves
Korean FMC Championship 2023 Final 5 29 31.67 293333
First round 7 29 32.67 293732
Rubik's WCA World Championship 2023 Final 38 29 31.33 293431
FMC Korea 2023 Final 4 31 34.33 313339
3x3x3 HanMaDang 2017 Final 8 44 44
Montréal Open 2013 Final 1 25 NR 25
3x3x3 One-Handed
Korean Championship 2023 First round 20 18.61 21.51 26.0522.2618.6122.6619.61
Rubik's WCA World Championship 2023 First round 306 19.12 22.13 22.6419.5634.2619.1224.20
Daegu Hot Spring 2023 Final 37 22.65 28.51 33.6228.9423.6122.6532.97
3x3x3 HanMaDang 2017 First round 18 19.93 21.64 21.9122.1125.1019.9320.90
National Capital Region 2014 Final 8 20.72 24.35 26.4022.4326.7524.2120.72
Second round 8 16.36 21.97 21.4122.0922.4016.3624.86
First round 8 23.19 25.51 27.0324.1823.1929.4625.33
Toronto Open Spring 2014 Second round 9 21.43 24.22 21.7428.6526.9723.9521.43
First round 8 20.59 25.13 20.5921.9223.88DNF29.60
Montréal Open 2014 Final 5 19.52 20.64 19.5219.8120.7021.4122.38
Canadian Open 2013 Second round 19 21.02 27.30 21.0222.1624.0835.6538.11
First round 17 22.97 24.15 23.3122.9724.3325.6624.80
National Capital Region 2013 Final 12 27.50 33.86 35.9627.5032.9736.9132.65
Second round 12 25.28 29.24 41.2228.8625.2827.5931.27
First round 14 29.56 35.63 39.5046.9034.5832.8129.56
Montréal Open 2013 Final 11 26.78 30.92 30.8627.5034.4026.7838.11
First round 12 29.52 33.60 36.6533.9148.8629.5230.25
Toronto Open Winter 2013 Second round 20 28.46 33.67 40.0930.3328.4646.1530.59
First round 19 25.05 30.66 40.3634.3132.1325.0525.53
Clock
Anyang Haseyo 2024 First round 20 8.26 9.55 16.829.249.398.2610.01
Ansan Autumn 2023 Final 10 10.27 10.92 10.4010.6314.8911.7410.27
First round 12 9.15 9.76 14.079.519.159.6810.10
Megaminx
Rubik's WCA World Championship 2023 First round 230 1:14.59 1:20.34 1:22.881:19.031:26.901:14.591:19.12
Daegu Hot Spring 2023 Final 16 1:18.04 1:26.97 1:29.821:29.231:31.681:21.861:18.04
National Capital Region 2014 Final 4 1:26.19 1:30.49 1:26.191:26.581:46.221:32.331:32.56
Montréal Open 2014 Final 5 1:23.46 1:30.94 1:32.971:24.311:23.461:37.611:35.53
Canadian Open 2013 Final 6 1:24.15 1:35.19 2:07.271:36.311:24.151:36.301:32.96
National Capital Region 2013 Final 4 1:29.47 1:35.81 1:40.221:52.781:30.691:36.521:29.47
Montréal Open 2013 Final 6 2:13.59 2:22.10 2:23.432:16.522:13.592:30.062:26.34
Toronto Open Winter 2013 Final 10 2:26.22 3:04.692:26.22
Pyraminx
Korean Championship 2023 First round 35 7.37 8.76 8.149.119.327.379.02
Rubik's WCA World Championship 2023 First round 360 8.14 9.03 8.148.159.639.3011.85
Busan Summer 2014 Final 5 3.89 7.17 16.1711.224.523.895.77
National Capital Region 2014 Final 5 7.61 9.26 8.777.6110.0011.009.02
Toronto Open Spring 2014 Final 11 7.66 8.81 10.728.0010.917.707.66
Montréal Open 2014 Final 4 8.15 8.47 8.448.558.1511.438.43
Canadian Open 2013 Final 10 7.22 9.34 11.559.569.289.197.22
First round 12 6.88 9.20 9.186.889.9712.688.44
National Capital Region 2013 Final 6 7.09 7.88 7.289.217.097.1611.15
First round 7 6.25 9.15 11.699.156.256.9611.34
Montréal Open 2013 Final 5 7.58 9.76 11.529.348.4112.277.58
Toronto Open Winter 2013 Final 10 10.43 11.29 10.4310.4312.0211.4711.97
Skewb
Anyang Haseyo 2024 First round 33 7.18 8.11 7.187.308.999.098.05
Rubik's WCA World Championship 2023 First round 336 6.87 10.15 8.896.8710.8710.6815.35
Daegu Hot Spring 2023 Final 39 8.21 11.03 15.3013.8010.728.218.57
Busan Summer 2014 Final 7 8.48 11.86 11.6712.298.4811.6112.58
First round 5 7.94 11.12 10.7913.687.948.8814.05
National Capital Region 2014 Final 4 7.81 11.39 7.8110.1611.1914.3112.83
Toronto Open Spring 2014 Final 5 7.18 11.23 11.3110.817.1811.5817.50
Montréal Open 2014 Final 4 8.07 10.15 8.0711.5110.798.1512.35
Square-1
Anyang Haseyo 2024 First round 18 18.90 27.35 37.8918.9026.4827.1428.43
Canadian Open 2013 Final 13 39.40 40.49 41.251:00.9040.0240.1939.40

History of National Records

Single Average Competition Round Solves
2x2x2 Cube
1.50 National Capital Region 2013 Final
3x3x3 Fewest Moves
25 Montréal Open 2013 Final
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