Derek Chang
Current Personal Records
| Event | NR | CR | WR | Single | Average | WR | CR | NR | Gold | Silver | Bronze | Solves/Attempts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3x3x3 Cube | 10760 | 14317 | 56462 | 14.14 | 16.49 | 51964 | 13023 | 9739 | 60/60 | |||
| 2x2x2 Cube | 8715 | 11447 | 41354 | 3.78 | 5.24 | 32787 | 9144 | 7000 | 30/30 | |||
| 4x4x4 Cube | 14352 | 18897 | 64999 | 2:01.38 | 2/2 | |||||||
| 3x3x3 One-Handed | 9638 | 13069 | 49814 | 45.18 | 59.79 | 48358 | 13008 | 9619 | 7/7 | |||
| Clock | 7642 | 9233 | 27344 | 43.70 | 2/4 | |||||||
| Megaminx | 4875 | 6648 | 22171 | 2:46.25 | 2/2 | |||||||
| Pyraminx | 5720 | 7409 | 27504 | 6.36 | 12.03 | 45978 | 12910 | 10033 | 19/20 | |||
| Skewb | 7329 | 9258 | 30451 | 8.41 | 12.85 | 30922 | 9412 | 7451 | 25/25 | |||
| Square-1 | 4791 | 5985 | 18222 | 50.79 | 2/2 |
Sum of Ranks
| Sum of NR | NR | Sum of CR | CR | Sum of WR | WR | |
|---|---|---|---|---|---|---|
| Single | 94542 | 6886 | 123723 | 9108 | 436367 | 33490 |
| Average | 81001 | 7297 | 106082 | 9643 | 376644 | 35713 |
| 3x3x3 Cube | |||||
| Competition | Round | Place | Best | Average | Detail |
|---|---|---|---|---|---|
| Berkeley Fall 2025 | Second round | 91 | 14.14 | 17.67 | 15.13 14.14 20.29 17.58 30.09 |
| First round | 88 | 15.04 | 16.49 | 16.23 18.53 16.87 16.36 15.04 | |
| Davis Summer 2025 | Second round | 69 | 16.98 | 18.64 | 22.47 17.31 19.01 16.98 19.60 |
| First round | 64 | 16.02 | 18.11 | 20.39 16.02 21.50 16.75 17.20 | |
| Warm Up Seattle 2025 | First round | 190 | 17.82 | 23.92 | 22.94 17.82 24.03 24.78 25.70 |
| Rock-Cube-Lin Qualifier 2025 | Second round | 47 | 18.62 | 20.44 | 20.46 21.75 22.79 18.62 19.12 |
| First round | 47 | 17.38 | 20.92 | 17.38 21.30 21.19 20.28 25.45 | |
| Davis Spring 2025 | Second round | 57 | 17.97 | 19.77 | 19.85 29.11 19.30 17.97 20.16 |
| First round | 67 | 15.64 | 22.94 | 19.37 25.82 15.64 24.64 24.80 | |
| Yuba City Spring 2025 | Second round | 34 | 18.03 | 21.78 | 21.99 21.71 22.03 18.03 21.63 |
| First round | 32 | 15.45 | 20.18 | 20.23 15.45 22.03 18.28 22.39 | |
| SacCubing XIX 2025 | First round | 85 | 19.68 | 24.73 | 24.97 22.56 19.68 26.65 28.23 |
| 2x2x2 Cube | |||||
| Competition | Round | Place | Best | Average | Detail |
| Berkeley Fall 2025 | First round | 59 | 3.78 | 5.24 | 4.95 5.25 5.52 6.44 3.78 |
| Davis Summer 2025 | First round | 53 | 4.56 | 5.75 | 5.40 5.46 4.56 6.38 6.82 |
| Warm Up Seattle 2025 | Second round | 94 | 5.74 | 7.02 | 8.52 6.36 6.19 5.74 9.35 |
| First round | 116 | 5.45 | 7.69 | 6.84 5.45 7.41 8.98 8.83 | |
| Yuba City Spring 2025 | First round | 28 | 4.69 | 5.75 | 6.69 19.40 4.69 5.24 5.32 |
| SacCubing XIX 2025 | First round | 65 | 4.40 | 6.83 | 4.40 6.52 8.74 5.24 10.81 |
| 4x4x4 Cube | |||||
| Competition | Round | Place | Best | Average | Detail |
| Warm Up Seattle 2025 | First round | 131 | 2:01.38 | 2:11.43 2:01.38 | |
| 5x5x5 Cube | |||||
| Competition | Round | Place | Best | Average | Detail |
| Berkeley Fall 2025 | First round | 77 | DNF | DNF DNF | |
| 3x3x3 One-Handed | |||||
| Competition | Round | Place | Best | Average | Detail |
| Davis Spring 2025 | First round | 54 | 48.59 | 1:09.58 48.59 | |
| Yuba City Spring 2025 | First round | 36 | 45.18 | 59.79 | 47.72 50.28 1:21.36 1:32.56 45.18 |
| Clock | |||||
| Competition | Round | Place | Best | Average | Detail |
| Rock-Cube-Lin Qualifier 2025 | Final | 43 | 43.70 | 43.70 DNF | |
| Yuba City Spring 2025 | First round | 35 | 52.39 | 52.39 DNF | |
| Megaminx | |||||
| Competition | Round | Place | Best | Average | Detail |
| Warm Up Seattle 2025 | First round | 53 | 2:46.25 | 2:46.25 3:23.91 | |
| Pyraminx | |||||
| Competition | Round | Place | Best | Average | Detail |
| Warm Up Seattle 2025 | Second round | 61 | 6.36 | 12.34 | DNF 6.36 13.17 9.04 14.82 |
| First round | 68 | 11.03 | 12.03 | 12.54 14.85 12.17 11.39 11.03 | |
| Davis Spring 2025 | First round | 44 | 11.68 | 14.15 | 13.51 14.83 11.68 17.03 14.12 |
| SacCubing XIX 2025 | First round | 56 | 9.08 | 12.37 | 12.29 12.92 11.91 14.34 9.08 |
| Skewb | |||||
| Competition | Round | Place | Best | Average | Detail |
| Warm Up Seattle 2025 | First round | 54 | 11.74 | 12.85 | 13.24 13.29 12.01 17.40 11.74 |
| Rock-Cube-Lin Qualifier 2025 | First round | 36 | 12.62 | 16.35 | 17.31 15.56 33.19 12.62 16.18 |
| Davis Spring 2025 | Second round | 32 | 8.41 | 13.70 | 17.25 8.41 11.81 12.05 25.51 |
| First round | 41 | 14.17 | 15.12 | 14.52 21.13 14.82 14.17 16.02 | |
| Yuba City Spring 2025 | First round | 29 | 10.52 | 15.71 | 10.52 29.00 17.72 14.55 14.85 |
| Square-1 | |||||
| Competition | Round | Place | Best | Average | Detail |
| Berkeley Fall 2025 | First round | 42 | 50.79 | 56.40 50.79 | |
| Berkeley Fall 2025 | |||||
| Event | Round | Place | Best | Average | Detail |
|---|---|---|---|---|---|
| 3x3x3 Cube | Second round | 91 | 14.14 | 17.67 | 15.13 14.14 20.29 17.58 30.09 |
| First round | 88 | 15.04 | 16.49 | 16.23 18.53 16.87 16.36 15.04 | |
| 2x2x2 Cube | First round | 59 | 3.78 | 5.24 | 4.95 5.25 5.52 6.44 3.78 |
| 5x5x5 Cube | First round | 77 | DNF | DNF DNF | |
| Square-1 | First round | 42 | 50.79 | 56.40 50.79 | |
| Davis Summer 2025 | |||||
| Event | Round | Place | Best | Average | Detail |
| 3x3x3 Cube | Second round | 69 | 16.98 | 18.64 | 22.47 17.31 19.01 16.98 19.60 |
| First round | 64 | 16.02 | 18.11 | 20.39 16.02 21.50 16.75 17.20 | |
| 2x2x2 Cube | First round | 53 | 4.56 | 5.75 | 5.40 5.46 4.56 6.38 6.82 |
| Warm Up Seattle 2025 | |||||
| Event | Round | Place | Best | Average | Detail |
| 3x3x3 Cube | First round | 190 | 17.82 | 23.92 | 22.94 17.82 24.03 24.78 25.70 |
| 2x2x2 Cube | Second round | 94 | 5.74 | 7.02 | 8.52 6.36 6.19 5.74 9.35 |
| First round | 116 | 5.45 | 7.69 | 6.84 5.45 7.41 8.98 8.83 | |
| 4x4x4 Cube | First round | 131 | 2:01.38 | 2:11.43 2:01.38 | |
| Megaminx | First round | 53 | 2:46.25 | 2:46.25 3:23.91 | |
| Pyraminx | Second round | 61 | 6.36 | 12.34 | DNF 6.36 13.17 9.04 14.82 |
| First round | 68 | 11.03 | 12.03 | 12.54 14.85 12.17 11.39 11.03 | |
| Skewb | First round | 54 | 11.74 | 12.85 | 13.24 13.29 12.01 17.40 11.74 |
| Rock-Cube-Lin Qualifier 2025 | |||||
| Event | Round | Place | Best | Average | Detail |
| 3x3x3 Cube | Second round | 47 | 18.62 | 20.44 | 20.46 21.75 22.79 18.62 19.12 |
| First round | 47 | 17.38 | 20.92 | 17.38 21.30 21.19 20.28 25.45 | |
| Clock | Final | 43 | 43.70 | 43.70 DNF | |
| Skewb | First round | 36 | 12.62 | 16.35 | 17.31 15.56 33.19 12.62 16.18 |
| Davis Spring 2025 | |||||
| Event | Round | Place | Best | Average | Detail |
| 3x3x3 Cube | Second round | 57 | 17.97 | 19.77 | 19.85 29.11 19.30 17.97 20.16 |
| First round | 67 | 15.64 | 22.94 | 19.37 25.82 15.64 24.64 24.80 | |
| 3x3x3 One-Handed | First round | 54 | 48.59 | 1:09.58 48.59 | |
| Pyraminx | First round | 44 | 11.68 | 14.15 | 13.51 14.83 11.68 17.03 14.12 |
| Skewb | Second round | 32 | 8.41 | 13.70 | 17.25 8.41 11.81 12.05 25.51 |
| First round | 41 | 14.17 | 15.12 | 14.52 21.13 14.82 14.17 16.02 | |
| Yuba City Spring 2025 | |||||
| Event | Round | Place | Best | Average | Detail |
| 3x3x3 Cube | Second round | 34 | 18.03 | 21.78 | 21.99 21.71 22.03 18.03 21.63 |
| First round | 32 | 15.45 | 20.18 | 20.23 15.45 22.03 18.28 22.39 | |
| 2x2x2 Cube | First round | 28 | 4.69 | 5.75 | 6.69 19.40 4.69 5.24 5.32 |
| 3x3x3 One-Handed | First round | 36 | 45.18 | 59.79 | 47.72 50.28 1:21.36 1:32.56 45.18 |
| Clock | First round | 35 | 52.39 | 52.39 DNF | |
| Skewb | First round | 29 | 10.52 | 15.71 | 10.52 29.00 17.72 14.55 14.85 |
| SacCubing XIX 2025 | |||||
| Event | Round | Place | Best | Average | Detail |
| 3x3x3 Cube | First round | 85 | 19.68 | 24.73 | 24.97 22.56 19.68 26.65 28.23 |
| 2x2x2 Cube | First round | 65 | 4.40 | 6.83 | 4.40 6.52 8.74 5.24 10.81 |
| Pyraminx | First round | 56 | 9.08 | 12.37 | 12.29 12.92 11.91 14.34 9.08 |
| No. | Date | Name | Region | City |
|---|---|---|---|---|
| 7 | 2025-10-04 | Berkeley Fall 2025 | United States | Berkeley, California |
| 6 | 2025-08-02 | Davis Summer 2025 | United States | Davis, California |
| 5 | 2025-06-28~29 | Warm Up Seattle 2025 | United States | Lynnwood, Washington |
| 4 | 2025-04-27 | Rock-Cube-Lin Qualifier 2025 | United States | Rocklin, California |
| 3 | 2025-04-06 | Davis Spring 2025 | United States | Davis, California |
| 2 | 2025-03-08 | Yuba City Spring 2025 | United States | Yuba City, California |
| 1 | 2025-01-19 | SacCubing XIX 2025 | United States | Sacramento, California |
Closest Cubers
Seen Cubers
| Times | Competitors |
|---|---|
| 1 | 586 |
| 2 | 57 |
| 3 | 27 |
| 4 | 17 |
| 5 | 3 |
| 6 | 6 |
| All | 696 |

