In the past year (2025), Kai-Chien Hsu (徐愷謙) competed in 3 competitions and 8 rounds across 4 events, from Aug 17th to Nov 30th.
Solves/Attempts
He attempted 37 solves and completed 36.
| Event | Solves | Attempts |
| 3x3x3 Cube | 19 | 20 |
| 2x2x2 Cube | 10 | 10 |
| Pyraminx | 5 | 5 |
| 4x4x4 Cube | 2 | 2 |
Personal Bests
He broke his personal best 10 times across 4 events, including 5 singles and 5 averages.
| Event | Times | Single | Average |
| 3x3x3 Cube | 4 | 2 | 2 |
| 2x2x2 Cube | 3 | 1 | 2 |
| Pyraminx | 2 | 1 | 1 |
| 4x4x4 Cube | 1 | 1 | 0 |
Improvements of Single
| Event | ≤2024 | 2025 | Improvement |
| 3x3x3 Cube | - | 10.48 | - |
| 2x2x2 Cube | - | 2.25 | - |
| Pyraminx | - | 7.72 | - |
| 4x4x4 Cube | - | 1:29.58 | - |
Improvements of Average
| Event | ≤2024 | 2025 | Improvement |
| 3x3x3 Cube | - | 13.26 | - |
| 2x2x2 Cube | - | 4.77 | - |
| Pyraminx | - | 11.46 | - |
Cubers
He met 462 cubers from 8 countries/regions, 93 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 369 |
| 2 | 62 |
| 3 | 31 |
| All | 462 |
Regions
He competed in 1 country/region.
Cities
In China, he visited 3 cities while competing.
| City | Times |
| Taoyuan | 1 |
| Taichung | 1 |
| Hsinchu | 1 |
