In the past year (2025), YoonSung Choi (최윤성) competed in 8 competitions and 50 rounds across 11 events, from Jan 18th to Dec 28th.
Solves/Attempts
He attempted 244 solves and completed 237.
| Event | Solves | Attempts |
| 3x3x3 Cube | 58 | 60 |
| 2x2x2 Cube | 57 | 60 |
| 3x3x3 One-Handed | 35 | 35 |
| 4x4x4 Cube | 25 | 25 |
| Square-1 | 15 | 15 |
| Megaminx | 10 | 10 |
| Pyraminx | 10 | 10 |
| Skewb | 10 | 10 |
| 5x5x5 Cube | 8 | 10 |
| 3x3x3 Fewest Moves | 6 | 6 |
| 6x6x6 Cube | 3 | 3 |
Personal Bests
He broke his personal best 54 times across 11 events, including 27 singles and 27 averages.
| Event | Times | Single | Average |
| 3x3x3 Cube | 10 | 4 | 6 |
| 2x2x2 Cube | 9 | 6 | 3 |
| 4x4x4 Cube | 8 | 4 | 4 |
| 3x3x3 One-Handed | 5 | 2 | 3 |
| 5x5x5 Cube | 4 | 2 | 2 |
| 3x3x3 Fewest Moves | 4 | 2 | 2 |
| Skewb | 4 | 2 | 2 |
| Square-1 | 4 | 2 | 2 |
| 6x6x6 Cube | 2 | 1 | 1 |
| Megaminx | 2 | 1 | 1 |
| Pyraminx | 2 | 1 | 1 |
Improvements of Single
| Event | ≤2024 | 2025 | Improvement |
| 2x2x2 Cube | 3.02 | 1.27 | 1.75 (137.80%) |
| 3x3x3 One-Handed | 21.19 | 9.88 | 11.31 (114.47%) |
| 4x4x4 Cube | 58.46 | 37.95 | 20.51 (54.04%) |
| 5x5x5 Cube | 1:55.87 | 1:29.52 | 26.35 (29.43%) |
| Megaminx | 1:55.34 | 1:30.00 | 25.34 (28.16%) |
| 3x3x3 Cube | 8.91 | 7.13 | 1.78 (24.96%) |
| Pyraminx | 6.18 | 5.19 | 0.99 (19.08%) |
| 3x3x3 Fewest Moves | - | 33 | - |
| Skewb | - | 5.14 | - |
| Square-1 | - | 25.62 | - |
| 6x6x6 Cube | - | 3:14.83 | - |
Improvements of Average
| Event | ≤2024 | 2025 | Improvement |
| 2x2x2 Cube | 4.35 | 2.36 | 1.99 (84.32%) |
| 3x3x3 One-Handed | 24.31 | 14.24 | 10.07 (70.72%) |
| 4x4x4 Cube | 1:08.08 | 42.77 | 25.31 (59.18%) |
| 3x3x3 Cube | 12.61 | 9.26 | 3.35 (36.18%) |
| Megaminx | 2:09.51 | 1:41.48 | 28.03 (27.62%) |
| 5x5x5 Cube | 2:12.37 | 1:48.48 | 23.89 (22.02%) |
| Pyraminx | 7.81 | 7.78 | 0.03 (0.39%) |
| 3x3x3 Fewest Moves | - | 37.67 | - |
| Skewb | - | 7.00 | - |
| Square-1 | - | 29.18 | - |
| 6x6x6 Cube | - | 3:21.23 | - |
Cubers
He met 839 cubers from 15 countries/regions, 305 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 534 |
| 2 | 152 |
| 3 | 61 |
| 4 | 39 |
| 5 | 24 |
| 6 | 18 |
| 7 | 8 |
| 8 | 3 |
| All | 839 |
Regions
He competed in 1 country/region.