People · Republic of Korea
Hyunseong Hwang (황현성)
Clock · top 1.4% of 32,048 all-time · competing since January 2024 · 2024HWAN01
Hyunseong Hwang (황현성) has been competing for 3 years. His best event is the Clock: a personal-best single of 3.46, set at Korean Championship 2025, puts him in the top 1.4% of the 32,048 people who have ever been ranked in the event, and 9th in Republic of Korea. Until July 2018, no official Clock solve in the world had been that fast. Across 5 competitions since January 2024, he has put 92 official solves on the record across six events. Solve to solve, his 3×3 times vary about 8% around a typical one, an early reading from 5 counted rounds. His Clock best has come down from 4.71 in August 2024 to 3.46, a 27% improvement. Hyunseong has entered five competitions, more competitions than 83% 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 | |
|---|---|---|---|---|---|
| Clock | 3.46 | 4.72 | top 1.4% | 9 / 536 | |
| 3×3 | 10.35 | 12.13 | top 8.5% | 487 / 4,352 | |
| 4×4 | 53.80 | 1:06.06 | top 29.3% | 520 / 1,308 | |
| 2×2 | 4.26 | 5.16 | top 29.8% | 888 / 2,319 | |
| 3×3 one-handed | 25.73 | 29.35 | top 36.1% | 456 / 966 | |
| Square-1 | 1:00.16 | — | early days — 2 solves | 331 / 371 |
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, Clock. Faster is higher — the axis is the right way up.
The story so far
- 15 Aug 2025Three personal bests in one day at Korea Open 2025.
- 8 Feb 2025Three personal bests in one day at Anyang Haseyo 2025.
- 6 Jan 2024First competition: Seoul Open 2024. A 14.10 3×3 single to start from.
Competitions
- Korean Championship 2025 · 27 Dec 2025 — 1 personal best set
- Korea Open 2025 · 15 Aug 2025 — 3 personal bests set
- Anyang Haseyo 2025 · 8 Feb 2025 — 3 personal bests set
- Korean Championship 2024 · 15 Aug 2024 — 1 personal best set
- Seoul Open 2024 · 6 Jan 2024 — 1 personal best set
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.
- On Yu (온유) — met in 17 rounds, finished ahead 8 times
- Hyunmin Roh (노현민) — met in 17 rounds, finished ahead 7 times
- Seonwoo Na (나선우) — met in 15 rounds, finished ahead 11 times
Next targets
- A sub-3 Clock single — 239 people have one; it is 0.46 away.
- A sub-10 3×3 single — 21,172 people have one; it is 0.35 away.
Targets move as he improves.