In the past year (2025), Jason Chang (章維祐) competed in 27 competitions and 125 rounds across 13 events, from Jan 4th to Dec 21st.
Solves/Attempts
He attempted 517 solves and completed 489.
| Event | Solves | Attempts |
| 3x3x3 Cube | 98 | 100 |
| Pyraminx | 54 | 55 |
| Megaminx | 50 | 52 |
| 7x7x7 Cube | 46 | 46 |
| 4x4x4 Cube | 42 | 42 |
| 5x5x5 Cube | 39 | 39 |
| 2x2x2 Cube | 38 | 40 |
| Clock | 36 | 40 |
| 6x6x6 Cube | 30 | 32 |
| 3x3x3 One-Handed | 26 | 26 |
| Skewb | 20 | 20 |
| 3x3x3 Fewest Moves | 6 | 7 |
| 3x3x3 Blindfolded | 4 | 18 |
Personal Bests
He broke his personal best 43 times across 13 events, including 24 singles and 19 averages.
| Event | Times | Single | Average |
| 7x7x7 Cube | 8 | 3 | 5 |
| Pyraminx | 7 | 3 | 4 |
| 4x4x4 Cube | 5 | 3 | 2 |
| Clock | 5 | 2 | 3 |
| 6x6x6 Cube | 4 | 3 | 1 |
| 5x5x5 Cube | 3 | 2 | 1 |
| Megaminx | 3 | 2 | 1 |
| 2x2x2 Cube | 2 | 1 | 1 |
| 3x3x3 Fewest Moves | 2 | 1 | 1 |
| 3x3x3 Cube | 1 | 1 | 0 |
| 3x3x3 Blindfolded | 1 | 1 | 0 |
| 3x3x3 One-Handed | 1 | 1 | 0 |
| Skewb | 1 | 1 | 0 |
Improvements of Single
| Event | ≤2024 | 2025 | Improvement |
| Pyraminx | 11.32 | 3.14 | 8.18 (260.51%) |
| 3x3x3 Fewest Moves | 57 | 39 | 18 (46.15%) |
| 3x3x3 One-Handed | 38.70 | 30.81 | 7.89 (25.61%) |
| 3x3x3 Blindfolded | 8:14.64 | 6:39.26 | 1:35.38 (23.89%) |
| Clock | 11.86 | 10.41 | 1.45 (13.93%) |
| Megaminx | 1:19.73 | 1:12.29 | 7.44 (10.29%) |
| 5x5x5 Cube | 1:30.08 | 1:22.63 | 7.45 (9.02%) |
| 4x4x4 Cube | 1:03.20 | 58.07 | 5.13 (8.83%) |
| 2x2x2 Cube | 3.99 | 3.72 | 0.27 (7.26%) |
| 7x7x7 Cube | 3:21.22 | 3:08.21 | 13.01 (6.91%) |
| Skewb | 9.31 | 8.79 | 0.52 (5.92%) |
| 6x6x6 Cube | 2:26.64 | 2:20.84 | 5.80 (4.12%) |
| 3x3x3 Cube | 14.05 | 13.56 | 0.49 (3.61%) |
Improvements of Average
| Event | ≤2024 | 2025 | Improvement |
| Pyraminx | 18.99 | 6.58 | 12.41 (188.60%) |
| Clock | 13.64 | 12.06 | 1.58 (13.10%) |
| 4x4x4 Cube | 1:14.15 | 1:05.72 | 8.43 (12.83%) |
| Megaminx | 1:28.61 | 1:20.83 | 7.78 (9.63%) |
| 7x7x7 Cube | 3:37.28 | 3:18.78 | 18.50 (9.31%) |
| 2x2x2 Cube | 7.21 | 6.73 | 0.48 (7.13%) |
| 5x5x5 Cube | 1:37.49 | 1:31.59 | 5.90 (6.44%) |
| 6x6x6 Cube | 2:33.61 | 2:25.23 | 8.38 (5.77%) |
| 3x3x3 Fewest Moves | - | 49.33 | - |
Cubers
He met 2965 cubers from 78 countries/regions, 447 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 2518 |
| 2 | 261 |
| 3 | 85 |
| 4 | 31 |
| 5 | 22 |
| 6 | 17 |
| 7 | 9 |
| 8 | 5 |
| 9 | 3 |
| 10 | 4 |
| 11 | 1 |
| 12 | 1 |
| 14 | 2 |
| 15 | 2 |
| 16 | 2 |
| 19 | 1 |
| 21 | 1 |
| All | 2965 |
Regions
He competed in 3 countries/regions.
| Region | Times |
| USA | 24 |
| Taiwan | 1 |
| Mexico | 1 |
Cities
In China, he visited 1 city while competing.
| City | Times |
| New Taipei City | 1 |
