People · Republic of Korea
Hyeonwoo Seong (성현우)
3×3 · top 2.3% of 284,439 all-time · competing since July 2024 · 2024SEON04
Hyeonwoo Seong (성현우) has been competing for 2 years. His best event is the 3×3: a personal-best single of 7.73, set at Korea Open 2026, puts him in the top 2.3% of the 284,439 people who have ever been ranked in the event, and 139th in Republic of Korea. Until July 2008, no official 3×3 solve in the world had been that fast. Across 8 competitions since July 2024, he has put 163 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 14% around a typical one; 69% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 11.04 in July 2024 to 7.73, a 30% improvement. Hyeonwoo has entered eight competitions, more competitions than 90% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Republic of Korea | |
|---|---|---|---|---|---|
| 3×3 | 7.73 | 8.50 | top 2.3% | 139 / 4,352 | |
| 2×2 | 2.74 | 3.25 | top 11.4% | 332 / 2,319 | |
| Clock | 8.41 | 9.46 | top 17.1% | 119 / 536 | |
| 4×4 | 47.65 | 55.19 | top 21.7% | 388 / 1,308 | |
| 3×3 one-handed | 23.53 | 27.09 | top 30.2% | 394 / 966 | |
| 5×5 | 1:45.88 | 1:55.40 | top 39.8% | 343 / 716 | |
| Pyraminx | 9.13 | 11.24 | top 46.0% | 675 / 1,271 | |
| 6×6 | 5:12.49 | — | early days — 1 solve | 290 / 329 |
Percentile against all competitors ever ranked in each event, a fairer measure than raw rank, because the pools differ by a factor of ten.
The line so far
Best single per competition, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 15 Aug 2026Three personal bests in one day at Korea Open 2026.
- 14 Dec 2024First sub-10 3×3: 9.01 at Seoul Winter 2024.
- 20 Jul 2024First competition: Ansan Summer 2024. A 11.04 3×3 single to start from.
Competitions
- Korea Open 2026 · 15 Aug 2026 — 3 personal bests set
- Ansan Favorites 2026 · 7 Feb 2026 — 2 personal bests set
- Seoul Winter 2026 · 17 Jan 2026 — 2 personal bests set
- Korean Championship 2025 · 27 Dec 2025 — 1 personal best set
- Korea Open 2025 · 15 Aug 2025 — 2 personal bests set
- Seoul Winter 2024 · 14 Dec 2024 — 2 personal bests set
- Brown Fall Seongnam 2024 · 21 Sep 2024 — 2 personal bests set
- Ansan Summer 2024 · 20 Jul 2024
Reading this page: a single is one solve's time · an average is the middle three of five solves, best and worst discarded · a PB is a personal best · a DNF (did not finish) is an attempt with no valid result: a popped piece, an unsolved face, an over-limit memorisation · top X% compares against everyone ever ranked in that event, which is fairer than raw rank because event pools differ tenfold.
The circuit
The people whose scorecards keep turning up next to his.
- Geunyeong Lee (이근영) — met in 34 rounds, finished ahead 8 times
- Minjun Kim (김민준) — met in 34 rounds, finished ahead 7 times
- DongSoo Park (박동수) — met in 33 rounds, never finished ahead
Next targets
- A sub-6 3×3 single — 1,376 people have one; it is 1.73 away.
- A sub-2 2×2 single — 8,848 people have one; it is 0.74 away.
Targets move as he improves.