People · Republic of Korea
Seonwoo Na (나선우)
Clock · top 5.4% of 32,048 all-time · competing since January 2024 · 2024NASE01
Seonwoo Na (나선우) has been competing for 3 years. His best event is the Clock: a personal-best single of 5.36, set at Korea Open 2025, puts him in the top 5.4% of the 32,048 people who have ever been ranked in the event, and 33rd in Republic of Korea. Until December 2011, no official Clock solve in the world had been that fast. Across 12 competitions since January 2024, he has put 297 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 14% around a typical one; 67% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 28.81 in January 2024 to 10.12, a 65% improvement. Seonwoo has entered twelve competitions, more competitions than 94% 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 | 5.36 | 6.38 | top 5.4% | 33 / 536 | |
| 3×3 | 10.12 | 11.99 | top 7.8% | 449 / 4,352 | |
| 2×2 | 2.46 | 3.92 | top 8.5% | 244 / 2,319 | |
| Pyraminx | 4.27 | 6.10 | top 9.0% | 139 / 1,271 | |
| 4×4 | 42.14 | 44.36 | top 14.7% | 283 / 1,308 | |
| Square-1 | 15.52 | 18.65 | top 17.6% | 74 / 371 | |
| 3×3 one-handed | 19.70 | 23.56 | top 19.7% | 272 / 966 | |
| 5×5 | 1:26.47 | 1:36.55 | top 24.5% | 228 / 716 | |
| Skewb | 6.14 | 7.90 | top 26.8% | 266 / 854 | |
| Megaminx | 1:32.19 | 1:43.62 | top 29.6% | 191 / 524 | |
| 6×6 | 2:53.86 | 3:03.00 | top 38.0% | 161 / 329 | |
| 7×7 | 4:59.09 | 5:05.53 | top 50.3% | 161 / 254 |
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
- 17 Jan 2026Four personal bests in one day at Seoul Winter 2026.
- 15 Aug 202513 personal bests in one day at Korea Open 2025.
- 10 May 2025Three personal bests in one day at Please Big Cubes Korea 2025.
- 8 Feb 2025Four personal bests in one day at Anyang Haseyo 2025.
- 14 Dec 2024Three personal bests in one day at Seoul Winter 2024.
- 15 Aug 2024First sub-15 3×3: 14.06 at Korean Championship 2024.
Competitions
- Seoul Winter 2026 · 17 Jan 2026 — 4 personal bests set
- Korea Open 2025 · 15 Aug 2025 — 13 personal bests set
- Please Big Cubes Korea 2025 · 10 May 2025 — 3 personal bests set
- Please Be Quiet Korea Spring 2025 · 27 Apr 2025
- Please Minx Korea 2025 · 5 Apr 2025 — 2 personal bests set
- Anyang Haseyo 2025 · 8 Feb 2025 — 4 personal bests set
- Seoul Winter 2024 · 14 Dec 2024 — 3 personal bests set
- Korean Championship 2024 · 15 Aug 2024 — 7 personal bests set
- Korea Qualifier - Seoul C 2024 · 22 Jun 2024 — 1 personal best set
- Busan Spring 2024 · 6 Apr 2024 — 1 personal best set
- Daegu Cold Winter 2024 · 3 Feb 2024 — 1 personal best set
- Seoul Open 2024 · 6 Jan 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.
- Choi Goho (최고호) — met in 68 rounds, finished ahead 23 times
- Ko Youngjin (고영진) — met in 67 rounds, finished ahead 11 times
- Minseo Gu (구민서) — met in 67 rounds, finished ahead 11 times
Next targets
- A sub-5 Clock single — 1,421 people have one; it is 0.36 away.
- A sub-10 3×3 single — 21,172 people have one; it is 0.12 away.
Targets move as he improves.