In the past year (2025), Zac Chung competed in 6 competitions and 52 rounds across 9 events, from May 31st to Dec 21st.
Solves/Attempts
He attempted 260 solves and completed 256.
| Event | Solves | Attempts |
| 3x3x3 Cube | 69 | 70 |
| 2x2x2 Cube | 49 | 50 |
| Pyraminx | 49 | 50 |
| 4x4x4 Cube | 30 | 30 |
| 5x5x5 Cube | 20 | 20 |
| Skewb | 20 | 20 |
| 3x3x3 One-Handed | 10 | 10 |
| Megaminx | 5 | 5 |
| Clock | 4 | 5 |
Personal Bests
He broke his personal best 48 times across 9 events, including 21 singles and 27 averages.
| Event | Times | Single | Average |
| 2x2x2 Cube | 9 | 3 | 6 |
| Pyraminx | 8 | 4 | 4 |
| 3x3x3 Cube | 7 | 3 | 4 |
| 4x4x4 Cube | 7 | 3 | 4 |
| Skewb | 5 | 2 | 3 |
| 5x5x5 Cube | 4 | 2 | 2 |
| 3x3x3 One-Handed | 4 | 2 | 2 |
| Clock | 2 | 1 | 1 |
| Megaminx | 2 | 1 | 1 |
Improvements of Single
| Event | ≤2024 | 2025 | Improvement |
| 2x2x2 Cube | - | 1.57 | - |
| Pyraminx | - | 4.04 | - |
| 3x3x3 Cube | - | 7.87 | - |
| 4x4x4 Cube | - | 37.54 | - |
| Skewb | - | 5.18 | - |
| 5x5x5 Cube | - | 1:17.10 | - |
| 3x3x3 One-Handed | - | 20.89 | - |
| Clock | - | 9.12 | - |
| Megaminx | - | 1:29.68 | - |
Improvements of Average
| Event | ≤2024 | 2025 | Improvement |
| 2x2x2 Cube | - | 3.08 | - |
| Pyraminx | - | 5.50 | - |
| 3x3x3 Cube | - | 10.26 | - |
| 4x4x4 Cube | - | 42.53 | - |
| Skewb | - | 9.02 | - |
| 5x5x5 Cube | - | 1:24.72 | - |
| 3x3x3 One-Handed | - | 25.19 | - |
| Clock | - | 11.77 | - |
| Megaminx | - | 1:43.41 | - |
Cubers
He met 865 cubers from 25 countries/regions, 282 of whom competed with him more than once. Isaac Chung was the only one who accompanied the whole 6 competitions.
| Shared Competitions | Competitors |
| 1 | 583 |
| 2 | 208 |
| 3 | 58 |
| 4 | 15 |
| 6 | 1 |
| All | 865 |
Regions
He competed in 2 countries/regions.
| Region | Times |
| Australia | 4 |
| Taiwan | 2 |
Cities
In China, he visited 2 cities while competing.
| City | Times |
| New Taipei City | 1 |
| Taoyuan | 1 |
