In the past year (2025), Katsumi Seino (清野克己) competed in 2 competitions and 8 rounds across 4 events, from Jul 27th to Nov 2nd.
Solves/Attempts
He attempted 40 solves and completed 40.
| Event | Solves | Attempts |
| 3x3x3 Cube | 15 | 15 |
| Megaminx | 15 | 15 |
| 5x5x5 Cube | 5 | 5 |
| 3x3x3 One-Handed | 5 | 5 |
Personal Bests
He broke his personal best 6 times across 4 events, including 4 singles and 2 averages.
| Event | Times | Single | Average |
| 5x5x5 Cube | 2 | 1 | 1 |
| 3x3x3 One-Handed | 2 | 1 | 1 |
| 3x3x3 Cube | 1 | 1 | 0 |
| Megaminx | 1 | 1 | 0 |
Improvements of Single
| Event | ≤2024 | 2025 | Improvement |
| 3x3x3 Cube | 8.87 | 8.29 | 0.58 (7.00%) |
| Megaminx | 38.76 | 38.15 | 0.61 (1.60%) |
| 5x5x5 Cube | - | 1:11.68 | - |
| 3x3x3 One-Handed | - | 21.47 | - |
Improvements of Average
| Event | ≤2024 | 2025 | Improvement |
| 5x5x5 Cube | - | 1:22.02 | - |
| 3x3x3 One-Handed | - | 26.04 | - |
Cubers
He met 166 cubers from 11 countries/regions, 34 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 132 |
| 2 | 34 |
| All | 166 |
Regions
He competed in 1 country/region.
