In the past year (2023), Ruei-Jyun Chang (張睿鈞) competed in 5 competitions and 42 rounds across 14 events, from Apr 23rd to Dec 10th.
Solves/Attempts
He attempted 189 solves and completed 181.
| Event | Solves | Attempts |
| 3x3x3 Cube | 34 | 35 |
| 2x2x2 Cube | 30 | 30 |
| Square-1 | 23 | 25 |
| 4x4x4 Cube | 15 | 15 |
| Pyraminx | 15 | 15 |
| Skewb | 15 | 15 |
| Clock | 14 | 15 |
| 5x5x5 Cube | 9 | 10 |
| 6x6x6 Cube | 6 | 6 |
| 7x7x7 Cube | 6 | 6 |
| 3x3x3 Fewest Moves | 6 | 7 |
| 3x3x3 One-Handed | 5 | 5 |
| Megaminx | 2 | 2 |
| 3x3x3 Blindfolded | 1 | 3 |
Personal Bests
He broke his personal best 17 times across 9 events, including 10 singles and 7 averages.
| Event | Times | Single | Average |
| 4x4x4 Cube | 4 | 2 | 2 |
| 5x5x5 Cube | 3 | 2 | 1 |
| 3x3x3 Cube | 2 | 2 | 0 |
| 6x6x6 Cube | 2 | 1 | 1 |
| 7x7x7 Cube | 2 | 1 | 1 |
| 3x3x3 Blindfolded | 1 | 1 | 0 |
| 3x3x3 Fewest Moves | 1 | 0 | 1 |
| 3x3x3 One-Handed | 1 | 0 | 1 |
| Square-1 | 1 | 1 | 0 |
Improvements of Single
| Event | ≤2022 | 2023 | Improvement |
| 6x6x6 Cube | 1:35.86 | 1:26.28 | 9.58 (11.10%) |
| Square-1 | 10.43 | 9.63 | 0.80 (8.31%) |
| 4x4x4 Cube | 33.27 | 30.93 | 2.34 (7.57%) |
| 5x5x5 Cube | 58.72 | 54.76 | 3.96 (7.23%) |
| 7x7x7 Cube | 2:27.76 | 2:18.11 | 9.65 (6.99%) |
| 3x3x3 Cube | 8.80 | 8.52 | 0.28 (3.29%) |
| 3x3x3 Blindfolded | - | 3:17.27 | - |
Improvements of Average
| Event | ≤2022 | 2023 | Improvement |
| 6x6x6 Cube | 1:41.88 | 1:32.59 | 9.29 (10.03%) |
| 7x7x7 Cube | 2:33.46 | 2:20.34 | 13.12 (9.35%) |
| 5x5x5 Cube | 1:03.38 | 58.33 | 5.05 (8.66%) |
| 4x4x4 Cube | 37.99 | 35.13 | 2.86 (8.14%) |
| 3x3x3 One-Handed | 23.93 | 23.38 | 0.55 (2.35%) |
| 3x3x3 Fewest Moves | - | 37.33 | - |
Cubers
He met 1563 cubers from 58 countries/regions, 145 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 1418 |
| 2 | 91 |
| 3 | 28 |
| 4 | 19 |
| 5 | 7 |
| All | 1563 |
Regions
He competed in 2 countries/regions.
| Region | Times |
| Taiwan | 4 |
| Korea | 1 |
Cities
In China, he visited 3 cities while competing.
| City | Times |
| Taipei | 2 |
| New Taipei City | 1 |
| Kaohsiung | 1 |
