In the past year (2025), Kazue Kobayashi (小林和惠) competed in 6 competitions and 11 rounds across 5 events, from Mar 20th to Sep 23rd.
Solves/Attempts
She attempted 47 solves and completed 46.
| Event | Solves | Attempts |
| 3x3x3 Cube | 15 | 15 |
| 4x4x4 Cube | 14 | 15 |
| 6x6x6 Cube | 9 | 9 |
| 5x5x5 Cube | 5 | 5 |
| 7x7x7 Cube | 3 | 3 |
Personal Bests
She broke her personal best 12 times across 4 events, including 7 singles and 5 averages.
| Event | Times | Single | Average |
| 6x6x6 Cube | 5 | 3 | 2 |
| 4x4x4 Cube | 3 | 2 | 1 |
| 5x5x5 Cube | 2 | 1 | 1 |
| 7x7x7 Cube | 2 | 1 | 1 |
Improvements of Single
| Event | ≤2024 | 2025 | Improvement |
| 7x7x7 Cube | 5:00.61 | 3:52.56 | 1:08.05 (29.26%) |
| 4x4x4 Cube | 36.44 | 33.27 | 3.17 (9.53%) |
| 5x5x5 Cube | 1:22.64 | 1:15.73 | 6.91 (9.12%) |
| 6x6x6 Cube | - | 2:16.01 | - |
Improvements of Average
| Event | ≤2024 | 2025 | Improvement |
| 7x7x7 Cube | 5:55.76 | 3:58.17 | 1:57.59 (49.37%) |
| 5x5x5 Cube | 1:31.80 | 1:23.64 | 8.16 (9.76%) |
| 4x4x4 Cube | 41.13 | 39.14 | 1.99 (5.08%) |
| 6x6x6 Cube | - | 2:18.52 | - |
Cubers
She met 272 cubers from 20 countries/regions, 89 of whom competed with her more than once.
| Shared Competitions | Competitors |
| 1 | 183 |
| 2 | 41 |
| 3 | 27 |
| 4 | 9 |
| 5 | 12 |
| All | 272 |
Regions
She competed in 2 countries/regions.
| Region | Times |
| Japan | 5 |
| Philippines | 1 |
