In the past year (2025), Kazuhiko Kusano (草野一彦) competed in 11 competitions and 29 rounds across 16 events, from Feb 16th to Dec 7th.
Solves/Attempts
He attempted 113 solves and completed 109.
| Event | Solves | Attempts |
| 3x3x3 Cube | 30 | 30 |
| 2x2x2 Cube | 10 | 10 |
| 4x4x4 Cube | 10 | 10 |
| Pyraminx | 10 | 10 |
| Square-1 | 10 | 10 |
| 3x3x3 Fewest Moves | 9 | 9 |
| Megaminx | 6 | 7 |
| Clock | 5 | 5 |
| Skewb | 5 | 5 |
| 3x3x3 One-Handed | 4 | 4 |
| 7x7x7 Cube | 3 | 3 |
| 5x5x5 Cube | 2 | 2 |
| 3x3x3 Blindfolded | 2 | 3 |
| 6x6x6 Cube | 1 | 1 |
| 4x4x4 Blindfolded | 1 | 3 |
| 3x3x3 Multi-Blind | 1 | 1 |
Personal Bests
He broke his personal best 35 times across 16 events, including 20 singles and 15 averages.
| Event | Times | Single | Average |
| 2x2x2 Cube | 4 | 2 | 2 |
| 3x3x3 Fewest Moves | 4 | 2 | 2 |
| Pyraminx | 4 | 2 | 2 |
| 4x4x4 Cube | 3 | 1 | 2 |
| Megaminx | 3 | 2 | 1 |
| Square-1 | 3 | 1 | 2 |
| 3x3x3 Cube | 2 | 1 | 1 |
| 7x7x7 Cube | 2 | 1 | 1 |
| Clock | 2 | 1 | 1 |
| Skewb | 2 | 1 | 1 |
| 5x5x5 Cube | 1 | 1 | 0 |
| 6x6x6 Cube | 1 | 1 | 0 |
| 3x3x3 Blindfolded | 1 | 1 | 0 |
| 3x3x3 One-Handed | 1 | 1 | 0 |
| 4x4x4 Blindfolded | 1 | 1 | 0 |
| 3x3x3 Multi-Blind | 1 | 1 | 0 |
Improvements of Single
| Event | ≤2024 | 2025 | Improvement |
| 3x3x3 Blindfolded | 5:47.19 | 3:12.34 | 2:34.85 (80.51%) |
| Clock | 17.33 | 10.36 | 6.97 (67.28%) |
| 2x2x2 Cube | 7.69 | 5.78 | 1.91 (33.04%) |
| 3x3x3 Fewest Moves | 33 | 25 | 8 (32.00%) |
| 3x3x3 Cube | 19.45 | 15.60 | 3.85 (24.68%) |
| Pyraminx | - | 7.95 | - |
| 4x4x4 Cube | - | 1:12.94 | - |
| Megaminx | - | 1:40.17 | - |
| Square-1 | - | 38.64 | - |
| 7x7x7 Cube | - | 6:17.89 | - |
| Skewb | - | 8.50 | - |
| 5x5x5 Cube | - | 2:43.01 | - |
| 6x6x6 Cube | - | 5:42.49 | - |
| 3x3x3 One-Handed | - | 53.22 | - |
| 4x4x4 Blindfolded | - | 31:24.00 | - |
| 3x3x3 Multi-Blind | - | 4/4 38:52 | - |
Improvements of Average
| Event | ≤2024 | 2025 | Improvement |
| Clock | 21.16 | 11.99 | 9.17 (76.48%) |
| 2x2x2 Cube | 8.56 | 6.42 | 2.14 (33.33%) |
| 3x3x3 Cube | 22.10 | 19.51 | 2.59 (13.28%) |
| 3x3x3 Fewest Moves | - | 26.67 | - |
| Pyraminx | - | 9.52 | - |
| 4x4x4 Cube | - | 1:20.06 | - |
| Megaminx | - | 1:44.89 | - |
| Square-1 | - | 53.37 | - |
| 7x7x7 Cube | - | 6:50.49 | - |
| Skewb | - | 13.15 | - |
Cubers
He met 388 cubers from 25 countries/regions, 175 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 213 |
| 2 | 73 |
| 3 | 35 |
| 4 | 22 |
| 5 | 19 |
| 6 | 11 |
| 7 | 6 |
| 8 | 6 |
| 9 | 2 |
| 10 | 1 |
| All | 388 |
Regions
He competed in 1 country/region.
