In the past year (2025), Kai Harada (原田櫂) competed in 7 competitions and 12 rounds across 2 events, from Feb 7th to Nov 8th.
Solves/Attempts
He attempted 60 solves and completed 60.
| Event | Solves | Attempts |
| 3x3x3 Cube | 50 | 50 |
| 2x2x2 Cube | 10 | 10 |
Personal Bests
He broke his personal best 6 times across 2 events, including 3 singles and 3 averages.
| Event | Times | Single | Average |
| 3x3x3 Cube | 3 | 1 | 2 |
| 2x2x2 Cube | 3 | 2 | 1 |
Improvements of Single
| Event | ≤2024 | 2025 | Improvement |
| 2x2x2 Cube | 4.10 | 3.81 | 0.29 (7.61%) |
| 3x3x3 Cube | 8.51 | 8.25 | 0.26 (3.15%) |
Improvements of Average
| Event | ≤2024 | 2025 | Improvement |
| 3x3x3 Cube | 11.81 | 10.47 | 1.34 (12.80%) |
| 2x2x2 Cube | 5.57 | 5.32 | 0.25 (4.70%) |
Cubers
He met 503 cubers from 25 countries/regions, 116 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 387 |
| 2 | 64 |
| 3 | 37 |
| 4 | 14 |
| 5 | 1 |
| All | 503 |
Regions
He competed in 2 countries/regions.
| Region | Times |
| Japan | 6 |
| Singapore | 1 |
