In the past year (2023), Katsumi Seino (清野克己) competed in 2 competitions and 5 rounds across 2 events, from Mar 25th to Aug 15th.
Podiums
He has been on the podium 1 times across 1 event, which was a silver.
| Event | Gold | Silver | Bronze |
| Megaminx | | 1 | |
Solves/Attempts
He attempted 25 solves and completed 25.
| Event | Solves | Attempts |
| 3x3x3 Cube | 15 | 15 |
| Megaminx | 10 | 10 |
Personal Bests
He broke his personal best 3 times across 1 event, including 2 singles and 1 average.
| Event | Times | Single | Average |
| Megaminx | 3 | 2 | 1 |
Improvements of Single
| Event | ≤2022 | 2023 | Improvement |
| Megaminx | 53.85 | 38.76 | 15.09 (38.93%) |
Improvements of Average
| Event | ≤2022 | 2023 | Improvement |
| Megaminx | 1:02.50 | 50.90 | 11.60 (22.79%) |
Cubers
He met 1246 cubers from 57 countries/regions, 28 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 1218 |
| 2 | 28 |
| All | 1246 |
Regions
He competed in 2 countries/regions.
| Region | Times |
| Korea | 1 |
| Japan | 1 |
