In the past year (2025), Seung Hyeon Sung (성승현) competed in 11 competitions and 92 rounds across 10 events, from Jan 18th to Dec 28th.
Solves/Attempts
He attempted 440 solves and completed 429.
| Event | Solves | Attempts |
| 3x3x3 Cube | 112 | 115 |
| 4x4x4 Cube | 64 | 65 |
| 2x2x2 Cube | 53 | 55 |
| Square-1 | 44 | 45 |
| Megaminx | 40 | 40 |
| 5x5x5 Cube | 39 | 40 |
| Clock | 32 | 35 |
| 6x6x6 Cube | 15 | 15 |
| 7x7x7 Cube | 15 | 15 |
| Skewb | 15 | 15 |
Personal Bests
He broke his personal best 32 times across 9 events, including 18 singles and 14 averages.
| Event | Times | Single | Average |
| Square-1 | 7 | 5 | 2 |
| 3x3x3 Cube | 4 | 1 | 3 |
| 5x5x5 Cube | 4 | 2 | 2 |
| Clock | 4 | 3 | 1 |
| 4x4x4 Cube | 3 | 2 | 1 |
| 6x6x6 Cube | 3 | 1 | 2 |
| Skewb | 3 | 2 | 1 |
| 2x2x2 Cube | 2 | 1 | 1 |
| 7x7x7 Cube | 2 | 1 | 1 |
Improvements of Single
| Event | ≤2024 | 2025 | Improvement |
| Square-1 | 13.00 | 8.76 | 4.24 (48.40%) |
| Skewb | 5.47 | 4.27 | 1.20 (28.10%) |
| 6x6x6 Cube | 2:15.20 | 1:51.74 | 23.46 (21.00%) |
| 4x4x4 Cube | 31.59 | 27.96 | 3.63 (12.98%) |
| Clock | 6.77 | 6.05 | 0.72 (11.90%) |
| 3x3x3 Cube | 6.92 | 6.34 | 0.58 (9.15%) |
| 5x5x5 Cube | 59.22 | 56.67 | 2.55 (4.50%) |
| 7x7x7 Cube | 3:16.40 | 3:08.97 | 7.43 (3.93%) |
| 2x2x2 Cube | 1.83 | 1.81 | 0.02 (1.10%) |
Improvements of Average
| Event | ≤2024 | 2025 | Improvement |
| Square-1 | 15.52 | 12.44 | 3.08 (24.76%) |
| Skewb | 7.09 | 6.03 | 1.06 (17.58%) |
| Clock | 8.31 | 7.09 | 1.22 (17.21%) |
| 6x6x6 Cube | 2:25.36 | 2:07.82 | 17.54 (13.72%) |
| 5x5x5 Cube | 1:07.77 | 1:01.65 | 6.12 (9.93%) |
| 3x3x3 Cube | 8.71 | 8.04 | 0.67 (8.33%) |
| 4x4x4 Cube | 34.73 | 32.87 | 1.86 (5.66%) |
| 7x7x7 Cube | 3:24.77 | 3:20.55 | 4.22 (2.10%) |
| 2x2x2 Cube | 2.93 | 2.90 | 0.03 (1.03%) |
Cubers
He met 946 cubers from 12 countries/regions, 378 of whom competed with him more than once.
| Shared Competitions | Competitors |
| 1 | 568 |
| 2 | 161 |
| 3 | 74 |
| 4 | 47 |
| 5 | 27 |
| 6 | 21 |
| 7 | 15 |
| 8 | 16 |
| 9 | 10 |
| 10 | 3 |
| 11 | 4 |
| All | 946 |
Regions
He competed in 1 country/region.
