People · Republic of Korea
Woo Seongmin (우성민)
Clock · top 0.79% of 32,048 all-time · competing since July 2022 · 2022SEON01
Woo Seongmin (우성민) has been competing for 4 years. His best event is the Clock: a personal-best single of 3.04, set at Korean Championship 2025, puts him in the top 0.79% of the 32,048 people who have ever been ranked in the event, and 6th in Republic of Korea. Until May 2021, no official Clock solve in the world had been that fast. Across 14 competitions since July 2022, he has put 228 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 72% of the 35,811 competitors with ten or more counted rounds. That figure sets aside his 3 DNFs. His Clock best has come down from 7.42 in March 2023 to 3.04, a 59% improvement. Woo has entered 14 competitions, more competitions than 95% 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 | 3.04 | 3.94 | top 0.79% | 6 / 536 | |
| 2×2 | 2.37 | 3.67 | top 7.7% | 216 / 2,319 | |
| 3×3 | 10.84 | 14.81 | top 10.0% | 573 / 4,352 | |
| Skewb | 6.26 | 10.16 | top 27.8% | 278 / 854 | |
| Pyraminx | 7.50 | 9.85 | top 32.0% | 485 / 1,271 | |
| 4×4 | 57.06 | 1:05.69 | top 33.2% | 576 / 1,308 | |
| 3×3 one-handed | 29.40 | 43.53 | top 45.3% | 568 / 966 |
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.
- 23 Jul 2022First competition: Seoul Summer 2022. A 14.03 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
- Suwon Summer 2025 · 13 Jul 2025
- Anyang Haseyo 2025 · 8 Feb 2025
- Brown Fall Seongnam 2024 · 21 Sep 2024 — 1 personal best set
- Korean Championship 2024 · 15 Aug 2024 — 1 personal best set
- Daegu Cold Winter 2024 · 3 Feb 2024
- Korean Championship 2023 · 15 Dec 2023 — 1 personal best set
- Ansan Autumn 2023 · 24 Sep 2023
- Rubik's WCA World Championship 2023 · 12 Aug 2023 — 1 personal best set
- Seoul Spring 2023 · 7 May 2023 — 1 personal best set
- Daegu Hot Spring 2023 · 15 Apr 2023
- Ansan Spring 2023 · 26 Mar 2023
- Seoul Summer 2022 · 23 Jul 2022
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.
- Ko Youngjin (고영진) — met in 39 rounds, finished ahead 14 times
- Minseo Gu (구민서) — met in 39 rounds, finished ahead 9 times
- On Yu (온유) — met in 37 rounds, finished ahead 11 times
Next targets
- A sub-3 Clock single — 239 people have one; it is 0.04 away.
- A sub-2 2×2 single — 8,848 people have one; it is 0.37 away.
Targets move as he improves.