In the past year (2025), Yiyun Chen (陈毅昀) competed in 14 competitions and 43 rounds across 8 events, from Jun 15th to Jan 1st.
Solves/Attempts
He attempted 202 solves and completed 200.
| Event | Solves | Attempts |
| Pyraminx | 64 | 65 |
| Skewb | 50 | 50 |
| 3x3x3 Cube | 35 | 35 |
| 3x3x3 One-Handed | 15 | 15 |
| 3x3x3 Fewest Moves | 14 | 15 |
| 2x2x2 Cube | 10 | 10 |
| 4x4x4 Cube | 7 | 7 |
| Clock | 5 | 5 |
Personal Bests
He broke his personal best 13 times across 5 events, including 6 singles and 7 averages.
| Event | Times | Single | Average |
| 3x3x3 Fewest Moves | 5 | 2 | 3 |
| Pyraminx | 5 | 3 | 2 |
| 3x3x3 Cube | 1 | 0 | 1 |
| 3x3x3 One-Handed | 1 | 0 | 1 |
| Skewb | 1 | 1 | 0 |
Improvements of Single
| Event | ≤2024 | 2025 | Improvement |
| Pyraminx | 2.57 | 1.69 | 0.88 (52.07%) |
| 3x3x3 Fewest Moves | 29 | 26 | 3 (11.54%) |
| Skewb | 3.96 | 3.71 | 0.25 (6.74%) |
Improvements of Average
| Event | ≤2024 | 2025 | Improvement |
| 3x3x3 Fewest Moves | 36.00 | 30.33 | 5.67 (18.69%) |
| Pyraminx | 3.21 | 3.15 | 0.06 (1.90%) |
| 3x3x3 One-Handed | 18.49 | 18.27 | 0.22 (1.20%) |
| 3x3x3 Cube | 12.33 | 12.33 | - |
Cubers
He met 1492 cubers from 41 countries/regions, 385 of whom competed with him more than once. Ming Zheng (郑鸣) was the only one who accompanied the whole 14 competitions.
| Shared Competitions | Competitors |
| 1 | 1107 |
| 2 | 193 |
| 3 | 83 |
| 4 | 46 |
| 5 | 25 |
| 6 | 12 |
| 7 | 13 |
| 8 | 5 |
| 9 | 1 |
| 10 | 3 |
| 11 | 3 |
| 14 | 1 |
| All | 1492 |
Regions
He competed in 1 country/region.
Cities
In China, he visited 6 cities while competing.
| City | Times |
| Guangzhou | 5 |
| Zhengzhou | 2 |
| Zhuhai | 1 |
| Jiangmen | 1 |
| Guilin | 1 |
| Nanchang | 1 |
