In the past year (2025), Yul-Hok Sung (성열학) competed in 8 competitions and 29 rounds across 12 events, from Feb 8th to Aug 24th.
Solves/Attempts
He attempted 114 solves and completed 110.
| Event | Solves | Attempts |
| 3x3x3 Cube | 20 | 20 |
| 2x2x2 Cube | 15 | 15 |
| Pyraminx | 15 | 15 |
| Skewb | 10 | 10 |
| 4x4x4 Cube | 9 | 9 |
| 3x3x3 Fewest Moves | 9 | 9 |
| Clock | 9 | 10 |
| Megaminx | 9 | 9 |
| 3x3x3 One-Handed | 6 | 7 |
| 6x6x6 Cube | 3 | 3 |
| 7x7x7 Cube | 3 | 3 |
| 5x5x5 Cube | 2 | 4 |
Personal Bests
He broke his personal best 12 times across 6 events, including 4 singles and 8 averages.
| Event | Times | Single | Average |
| 2x2x2 Cube | 2 | 0 | 2 |
| 6x6x6 Cube | 2 | 1 | 1 |
| 3x3x3 Fewest Moves | 2 | 1 | 1 |
| 3x3x3 One-Handed | 2 | 1 | 1 |
| Clock | 2 | 0 | 2 |
| Megaminx | 2 | 1 | 1 |
Improvements of Single
| Event | ≤2024 | 2025 | Improvement |
| 3x3x3 One-Handed | 55.53 | 45.56 | 9.97 (21.88%) |
| 3x3x3 Fewest Moves | 47 | 40 | 7 (17.50%) |
| Megaminx | 3:03.48 | 2:40.02 | 23.46 (14.66%) |
| 6x6x6 Cube | 5:18.63 | 5:10.43 | 8.20 (2.64%) |
Improvements of Average
| Event | ≤2024 | 2025 | Improvement |
| Clock | 16.88 | 13.36 | 3.52 (26.35%) |
| 2x2x2 Cube | 8.88 | 7.52 | 1.36 (18.09%) |
| 3x3x3 One-Handed | 1:17.64 | 1:09.33 | 8.31 (11.99%) |
| Megaminx | 3:19.46 | 3:05.40 | 14.06 (7.58%) |
| 3x3x3 Fewest Moves | 50.67 | 48.67 | 2 (4.11%) |
| 6x6x6 Cube | 5:48.84 | 5:48.32 | 0.52 (0.15%) |
Cubers
He met 1020 cubers from 25 countries/regions, 251 of whom competed with him more than once. Minseo Gu (구민서) was the only one who accompanied the whole 8 competitions.
| Shared Competitions | Competitors |
| 1 | 769 |
| 2 | 128 |
| 3 | 55 |
| 4 | 36 |
| 5 | 18 |
| 6 | 7 |
| 7 | 6 |
| 8 | 1 |
| All | 1020 |
Regions
He competed in 1 country/region.
