In the past year (2025), Zhengkai Xu (徐正凯) competed in 3 competitions and 18 rounds across 6 events, from Jun 7th to Nov 16th.
Solves/Attempts
He attempted 90 solves and completed 86.
| Event | Solves | Attempts |
| 3x3x3 Cube | 30 | 30 |
| Skewb | 18 | 20 |
| 2x2x2 Cube | 14 | 15 |
| 3x3x3 One-Handed | 14 | 15 |
| 4x4x4 Cube | 5 | 5 |
| Pyraminx | 5 | 5 |
Personal Bests
He broke his personal best 4 times across 2 events, including 2 singles and 2 averages.
| Event | Times | Single | Average |
| 2x2x2 Cube | 3 | 1 | 2 |
| 4x4x4 Cube | 1 | 1 | 0 |
Improvements of Single
| Event | ≤2024 | 2025 | Improvement |
| 4x4x4 Cube | 37.45 | 35.80 | 1.65 (4.61%) |
| 2x2x2 Cube | 2.44 | 2.43 | 0.01 (0.41%) |
Improvements of Average
| Event | ≤2024 | 2025 | Improvement |
| 2x2x2 Cube | 4.71 | 4.52 | 0.19 (4.20%) |
Cubers
He met 471 cubers from 7 countries/regions, 82 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 389 |
| 2 | 60 |
| 3 | 22 |
| All | 471 |
Regions
He competed in 1 country/region.
Cities
In China, he visited 3 cities while competing.
| City | Times |
| Yancheng | 1 |
| Hefei | 1 |
| Xuzhou | 1 |
