Clark Cheng

Missing avatar thumb
Country WCA ID Gender Competitions Completed Solves
United States 2011CHEN55 Male 21 659

Current Personal Records

Event NR CR WR Single Average WR CR NR
Rubik's Cube 529 705 2808 9.88 11.09 1644 424 334
4x4x4 Cube 266 357 1748 41.95 49.02 1915 393 291
5x5x5 Cube 223 294 1483 1:26.58 1:35.02 1418 277 211
6x6x6 Cube 270 356 1550 3:27.20 3:47.06 1631 385 289
7x7x7 Cube 295 393 1737 5:44.36 6:19.23 1742 410 307
3x3x3 One-Handed 104 126 467 13.11 16.88 530 134 103
Megaminx 538 873 3670 2:18.61
Square-1 89 111 340 12.93 22.54 719 217 167

Medal Collection

Gold Silver Bronze
1 6 7
Competition Round Place Single Average Solves
Rubik's Cube
Hendersonville Fall 2017 Final 7 10.39 11.99 12.5513.8411.8710.3911.55
Second 10 9.88 12.41 12.5113.2414.609.8811.47
First 13 11.24 13.88 13.5811.2414.5713.4814.69
CubingUSA Nationals 2017 Second 142 10.98 12.50 10.9814.6511.8512.9212.72
First 186 12.16 13.05 13.1312.1613.7512.3713.66
Crossroads Cubing Spring 2017 Final 3 10.62 11.09 11.0610.6211.3710.8412.95
Second 5 10.27 12.01 10.2711.6011.6113.3112.82
First 6 11.57 13.14 13.6712.4413.3011.5714.78
Unionville Open Spring 2017 Final 6 10.28 12.51 12.5612.5612.4112.9710.28
Second 5 10.82 12.81 10.8212.7813.5416.4412.11
First 7 11.37 13.07 11.3716.3511.8611.7815.56
Discovery Place 2016 Final 11 11.25 13.70 14.1214.5211.2513.6513.34
Second 10 10.74 13.12 13.7715.5314.1810.7411.40
First 17 12.16 15.53 18.7517.2113.3812.1615.99
Duke Summer 2016 Final 11 11.34 13.15 14.2813.2912.0314.1211.34
Second 5 10.46 11.50 13.9911.8110.4610.8911.79
First 7 10.23 12.77 12.2312.1813.8910.2314.77
Athens Summer Omega 2016 Final 8 12.46 13.80 12.4617.4613.1415.0913.17
Second 10 12.93 13.92 13.0112.9313.4716.8715.27
Combined First 9 11.71 13.69 13.5514.0311.7113.7413.77
Athens Fall 2015 Final 11 12.24 15.98 14.51DNF14.3312.2419.11
Second 10 12.61 13.69 13.1612.6113.7014.22DNF
First 9 12.97 14.33 15.1314.9514.7612.9713.29
Atlanta Open 2015 Final 7 11.96 13.37 13.3711.9612.1815.6314.56
First 10 13.83 14.49 18.0414.2014.7714.4913.83
US Nationals 2015 Second 100 11.92 13.72 15.0714.4911.9214.5912.07
First 72 11.66 12.62 12.0912.4913.2711.6615.61
Peach State 2015 Final 9 10.97 14.13 15.7712.0518.2310.9714.58
Second 11 12.06 14.86 12.0617.6114.1218.5512.84
First 6 12.05 12.72 12.6513.4513.0412.0512.48
Charlotte Open Fall 2014 Final 3 11.81 14.73 15.0116.2011.8114.7914.40
Second 3 11.96 12.88 15.2012.4411.9613.4112.78
First 7 13.27 16.32 18.3416.4013.2714.7617.80
US Nationals 2014 First 169 12.26 15.93 12.2617.1515.1315.6617.01
Harvard Fall 2013 Second 13 10.61 14.54 17.6313.5314.6110.6115.47
First 20 14.55 16.32 15.5616.6916.7216.9014.55
World Rubik's Cube Championship 2013 First 236 12.63 16.35 12.6317.5516.8815.1017.07
Raleigh Open 2013 Final 8 14.02 16.25 14.0215.8819.2816.9315.94
Second 7 12.08 14.99 13.2216.4412.0815.3616.40
First 8 14.03 15.87 16.1815.6115.8117.8314.03
Battle of Appalachia 2012 Final 9 12.55 19.55 18.9320.5222.8019.2112.55
Second 11 17.44 18.91 19.3017.4418.1619.2724.27
First 10 15.68 17.64 18.4718.2515.6816.1922.47
United States National Championships 2012 First 141 17.88 18.98 19.5817.8819.0218.3321.61
Raleigh Open 2012 Final 8 17.27 20.24 21.1619.3120.2717.2721.15
Second 6 13.96 16.64 15.7716.5817.5613.9618.55
First 7 15.46 16.47 16.5015.7517.1515.4622.46
Minnesota Open 2012 Final 11 16.33 19.07 20.0517.9419.9216.3319.36
Second 11 13.69 20.00 18.5613.6922.0220.2421.21
First 13 18.86 20.40 19.6126.9321.1318.8620.46
MIT Fall 2011 First 36 22.05 25.36 24.1626.1322.0525.7826.80
4x4x4 Cube
Hendersonville Fall 2017 Combined First 10 47.72 53.81 47.7248.1954.9058.7558.35
CubingUSA Nationals 2017 Combined First 136 43.56 52.93 43.5655.181:39.7451.4652.16
Crossroads Cubing Spring 2017 Combined Final 7 46.49 51.85 59.2851.1051.5146.4952.93
Unionville Open Spring 2017 Final 6 47.03 54.15 58.4651.211:51.5052.7747.03
Combined First 7 47.44 58.17 47.441:06.2556.091:01.1857.23
Discovery Place 2016 Combined Final 8 47.01 52.63 53.6452.3953.6851.8747.01
Duke Summer 2016 Combined Final 8 48.94 54.81 52.871:00.2748.9458.2653.30
Athens Summer Omega 2016 Final 7 50.85 55.10 1:02.7753.6350.8557.8653.81
Combined First 9 53.43 55.15 55.3756.3553.4354.9855.10
Athens Fall 2015 Combined Final 7 49.50 51.69 49.5051.6551.1552.2756.16
Atlanta Open 2015 Combined Final 5 41.95 49.02 48.7050.4641.9547.901:00.06
US Nationals 2015 Second 65 51.03 53.21 57.3551.0351.9954.4053.23
Combined First 80 51.31 54.12 57.2252.3358.6752.8251.31
Peach State 2015 Combined Final 7 52.17 56.89 56.6557.9256.1052.1758.20
Charlotte Open Fall 2014 Combined Final 2 51.58 58.84 53.0151.581:05.2058.601:04.90
US Nationals 2014 Combined First 101 54.81 58.40 58.7856.4559.961:09.0154.81
Harvard Fall 2013 Combined First 13 57.69 1:08.79 57.691:09.021:09.341:15.841:08.02
World Rubik's Cube Championship 2013 Combined First 226 1:15.45 1:30.831:15.45
Raleigh Open 2013 Combined Final 8 58.91 1:07.14 1:01.911:04.91DNF58.911:14.61
Battle of Appalachia 2012 Final 4 54.33 1:06.81 1:05.801:24.681:11.5854.331:03.05
First 3 1:05.38 1:09.66 1:07.591:05.381:11.521:09.861:21.86
United States National Championships 2012 Combined First 92 1:08.44 1:15.00 1:15.971:14.181:14.841:08.441:16.38
Raleigh Open 2012 Combined First 9 1:01.38 1:16.24 1:28.221:17.361:09.611:21.751:01.38
Minnesota Open 2012 Final 7 1:19.27 1:22.86 2:05.801:19.271:23.211:22.531:22.83
MIT Fall 2011 Combined First 19 1:40.11 2:05.281:40.11
5x5x5 Cube
CubingUSA Nationals 2017 Combined First 88 1:29.30 1:35.02 1:29.301:43.651:33.721:37.031:34.32
Unionville Open Spring 2017 Combined Final 5 1:26.58 1:42.02 1:46.871:41.651:26.581:45.191:39.21
Athens Summer Omega 2016 Final 8 1:43.16 1:51.15 1:54.341:52.151:43.161:52.381:48.92
Combined First 11 1:46.26 1:54.00 2:02.881:48.801:54.271:46.261:58.94
Athens Fall 2015 Combined Final 10 1:50.52 2:14.53 1:51.791:50.522:21.68DNF2:30.12
Atlanta Open 2015 Combined Final 11 1:44.38 2:06.11 2:01.792:12.052:07.572:08.971:44.38
US Nationals 2015 Combined First 97 1:44.66 2:02.10 2:00.672:00.361:44.662:05.272:13.97
Charlotte Open Fall 2014 Combined Final 2 1:42.70 1:58.55 1:56.972:09.731:42.701:53.232:05.46
US Nationals 2014 Combined First 88 1:54.79 2:01.45 2:09.731:59.181:54.792:05.871:59.30
Harvard Fall 2013 Combined Final 11 1:54.34 1:58.54 2:00.561:59.582:19.251:54.341:55.47
World Rubik's Cube Championship 2013 Combined First 124 1:49.18 2:00.59 1:58.311:53.982:09.491:49.182:13.46
Raleigh Open 2013 Combined Final 8 1:54.03 2:19.07 3:04.532:30.832:25.271:54.032:01.11
Battle of Appalachia 2012 Final 4 1:54.71 2:10.32 1:54.712:24.032:16.612:00.022:14.33
United States National Championships 2012 Combined First 76 1:56.25 2:20.71 1:56.252:24.942:11.882:30.152:25.31
Raleigh Open 2012 First 9 2:13.77 2:24.18 2:16.942:25.552:40.802:13.772:30.05
Minnesota Open 2012 Final 6 2:23.03 2:38.07 2:23.032:29.362:44.462:40.382:49.19
MIT Fall 2011 Combined Final 13 2:55.52 2:56.562:55.52
6x6x6 Cube
CubingUSA Nationals 2017 Combined First 120 4:35.80 4:35.80
Unionville Open Spring 2017 Combined Final 9 3:33.83 3:47.06 3:33.833:44.614:02.73
Athens Summer Omega 2016 Combined First 11 3:38.40 4:04.13 4:14.004:20.003:38.40
US Nationals 2015 Combined First 55 3:27.20 3:55.50 3:27.204:26.203:53.11
Peach State 2015 Combined Final 3 3:35.83 3:57.78 4:28.873:48.633:35.83
US Nationals 2014 Combined First 59 3:54.02 4:04.19 4:01.183:54.024:17.37
World Rubik's Cube Championship 2013 Combined First 71 3:35.89 3:48.57 3:51.023:35.893:58.81
United States National Championships 2012 Combined First 46 4:09.30 4:31.18 4:36.094:48.154:09.30
7x7x7 Cube
Unionville Open Spring 2017 Combined Final 8 6:39.57 6:39.57
Athens Summer Omega 2016 Combined Final 11 6:21.57 6:36.34 6:21.576:56.656:30.80
US Nationals 2015 Combined First 66 6:30.28 6:30.28
Peach State 2015 Combined Final 2 5:44.36 6:19.23 6:37.265:44.366:36.08
World Rubik's Cube Championship 2013 Combined First 110 7:08.69 7:08.69
3x3x3 One-Handed
Hendersonville Fall 2017 Final 3 14.18 17.09 DNF19.4416.8814.9414.18
Combined First 3 14.36 17.23 17.0517.5920.1114.3617.04
CubingUSA Nationals 2017 Semi Final 43 16.18 19.60 19.5516.1822.2023.3317.04
Second 36 16.11 18.23 16.5416.1119.8219.6818.46
First 70 15.53 20.61 20.9029.0317.0323.8915.53
Crossroads Cubing Spring 2017 Combined Final 2 16.25 18.91 18.9720.1516.2520.4117.60
Duke Summer 2016 Final 3 15.69 18.06 18.4319.1916.5515.6920.00
Combined First 5 16.93 18.76 18.8318.3620.6419.1016.93
Athens Summer Omega 2016 Final 4 16.19 19.72 16.1923.1721.0421.0617.05
Combined First 3 14.90 16.88 19.0914.9016.0917.2017.35
Athens Fall 2015 Final 4 16.76 18.07 17.0919.4719.1616.7617.96
Combined First 3 16.02 17.55 17.9021.2817.3117.4416.02
US Nationals 2015 Semi Final 21 18.13 18.59 19.3118.3318.1318.1319.98
Second 24 14.97 19.18 14.9719.9216.8520.9120.77
Combined First 25 17.99 19.53 19.9918.1321.4817.9920.48
Peach State 2015 Combined Final 1 16.21 17.47 18.2816.7319.5816.2117.40
Charlotte Open Fall 2014 Final 2 13.11 18.04 13.1120.4717.5523.2916.11
US Nationals 2014 Second 41 17.41 21.14 17.4120.2324.8918.2925.58
Combined First 40 18.39 20.15 18.9120.3118.3921.2422.65
Harvard Fall 2013 Final 3 20.21 21.74 28.8420.4122.0622.7520.21
Combined First 5 20.77 21.42 20.9721.8720.7722.7121.43
World Rubik's Cube Championship 2013 Second 74 20.73 22.78 22.6423.6923.6520.7322.06
Combined First 63 17.47 21.88 29.4024.1119.7121.8217.47
Raleigh Open 2013 Final 3 21.36 23.36 27.2124.9022.5221.3622.65
Combined First 1 21.18 22.97 22.5221.1822.8028.0523.59
Battle of Appalachia 2012 Final 4 24.08 29.33 24.0831.7727.9731.5028.53
First 4 22.40 26.64 26.5222.4025.8427.5637.46
Megaminx
US Nationals 2014 Combined First 73 2:18.61 DNF 2:18.612:50.372:30.72DNSDNS
Square-1
CubingUSA Nationals 2017 Combined First 69 12.93 23.07 12.9323.6324.4822.3523.22
Unionville Open Spring 2017 Final 2 18.26 22.54 24.6018.2624.8920.4722.56
Combined First 3 15.79 23.04 18.8527.7924.2326.0315.79
Athens Summer Omega 2016 Second 7 23.78 28.32 26.8026.3431.8123.7831.95
Combined First 8 25.16 32.46 30.4325.1629.7137.2345.36
US Nationals 2015 Combined First 20 22.99 30.34 34.0943.2827.5229.4022.99
US Nationals 2014 Combined First 29 18.52 34.19 38.6130.3518.5238.2633.96
World Rubik's Cube Championship 2013 Combined First 50 21.28 43.20 21.28DNF1:00.3434.3934.88