In the past year (2025), Kazumasa Tsutsui (筒井一雅) competed in 7 competitions and 19 rounds across 6 events, from Apr 12th to Nov 8th.
Solves/Attempts
He attempted 95 solves and completed 91.
| Event | Solves | Attempts |
| 3x3x3 Cube | 40 | 40 |
| Pyraminx | 22 | 25 |
| Skewb | 15 | 15 |
| 3x3x3 One-Handed | 5 | 5 |
| Megaminx | 5 | 5 |
| Clock | 4 | 5 |
Personal Bests
He broke his personal best 21 times across 6 events, including 11 singles and 10 averages.
| Event | Times | Single | Average |
| 3x3x3 Cube | 7 | 3 | 4 |
| Pyraminx | 5 | 3 | 2 |
| Skewb | 3 | 2 | 1 |
| 3x3x3 One-Handed | 2 | 1 | 1 |
| Clock | 2 | 1 | 1 |
| Megaminx | 2 | 1 | 1 |
Improvements of Single
| Event | ≤2024 | 2025 | Improvement |
| 3x3x3 Cube | - | 14.55 | - |
| Pyraminx | - | 4.65 | - |
| Skewb | - | 7.23 | - |
| 3x3x3 One-Handed | - | 42.60 | - |
| Clock | - | 8.42 | - |
| Megaminx | - | 2:06.26 | - |
Improvements of Average
| Event | ≤2024 | 2025 | Improvement |
| 3x3x3 Cube | - | 20.65 | - |
| Pyraminx | - | 7.05 | - |
| Skewb | - | 10.79 | - |
| 3x3x3 One-Handed | - | 46.57 | - |
| Clock | - | 12.87 | - |
| Megaminx | - | 2:21.59 | - |
Cubers
He met 508 cubers from 25 countries/regions, 180 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 328 |
| 2 | 86 |
| 3 | 53 |
| 4 | 23 |
| 5 | 10 |
| 6 | 3 |
| 7 | 5 |
| All | 508 |
Regions
He competed in 1 country/region.
