In the past year (2024), Zhengkai Xu (徐正凯) competed in 9 competitions and 46 rounds across 12 events, from Mar 30th to Dec 21st.
Solves/Attempts
He attempted 217 solves and completed 213.
| Event | Solves | Attempts |
| 3x3x3 Cube | 60 | 60 |
| Skewb | 45 | 45 |
| 4x4x4 Cube | 30 | 30 |
| 3x3x3 One-Handed | 19 | 20 |
| 2x2x2 Cube | 15 | 15 |
| 5x5x5 Cube | 15 | 15 |
| Pyraminx | 10 | 10 |
| 6x6x6 Cube | 6 | 6 |
| 7x7x7 Cube | 5 | 6 |
| Clock | 4 | 5 |
| 3x3x3 Fewest Moves | 2 | 3 |
| Megaminx | 2 | 2 |
Personal Bests
He broke his personal best 21 times across 8 events, including 11 singles and 10 averages.
| Event | Times | Single | Average |
| 4x4x4 Cube | 5 | 3 | 2 |
| 5x5x5 Cube | 5 | 2 | 3 |
| 6x6x6 Cube | 3 | 2 | 1 |
| 3x3x3 Cube | 2 | 1 | 1 |
| 2x2x2 Cube | 2 | 1 | 1 |
| Clock | 2 | 1 | 1 |
| 3x3x3 Fewest Moves | 1 | 1 | 0 |
| 3x3x3 One-Handed | 1 | 0 | 1 |
Improvements of Single
| Event | ≤2023 | 2024 | Improvement |
| 2x2x2 Cube | 2.71 | 2.44 | 0.27 (11.07%) |
| 6x6x6 Cube | 2:50.07 | 2:35.40 | 14.67 (9.44%) |
| 4x4x4 Cube | 40.52 | 37.45 | 3.07 (8.20%) |
| 5x5x5 Cube | 1:23.19 | 1:17.94 | 5.25 (6.74%) |
| 3x3x3 Cube | 10.52 | 10.28 | 0.24 (2.33%) |
| Clock | 19.48 | 19.31 | 0.17 (0.88%) |
| 3x3x3 Fewest Moves | - | 42 | - |
Improvements of Average
| Event | ≤2023 | 2024 | Improvement |
| Clock | 26.11 | 22.77 | 3.34 (14.67%) |
| 6x6x6 Cube | 2:58.93 | 2:45.81 | 13.12 (7.91%) |
| 4x4x4 Cube | 45.51 | 42.41 | 3.10 (7.31%) |
| 5x5x5 Cube | 1:31.14 | 1:26.22 | 4.92 (5.71%) |
| 3x3x3 One-Handed | 22.77 | 21.69 | 1.08 (4.98%) |
| 3x3x3 Cube | 11.73 | 11.46 | 0.27 (2.36%) |
| 2x2x2 Cube | 4.77 | 4.71 | 0.06 (1.27%) |
Cubers
He met 1536 cubers from 29 countries/regions, 296 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 1240 |
| 2 | 183 |
| 3 | 74 |
| 4 | 22 |
| 5 | 12 |
| 6 | 3 |
| 7 | 2 |
| All | 1536 |
Regions
He competed in 2 countries/regions.
| Region | Times |
| China | 8 |
| Malaysia | 1 |
Cities
In China, he visited 6 cities while competing.
| City | Times |
| Huzhou | 2 |
| Shenzhen | 1 |
| Zibo | 1 |
| Xuzhou | 1 |
| Hangzhou | 1 |
| Yancheng | 1 |
