People · Republic of Korea
Jongwon Kook (국종원)
Clock · top 0.51% of 32,048 all-time · competing since April 2023 · 2023KOOK01
Jongwon Kook (국종원) has been competing for 3 years. His best event is the Clock: a personal-best single of 2.78, set at All Rounders Katowice I 2026, puts him in the top 0.51% of the 32,048 people who have ever been ranked in the event, and 3rd in Republic of Korea. Until March 2023, no official Clock solve in the world had been that fast. Across 30 competitions since April 2023, he has put 1,402 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 16% around a typical one; 93% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 22.91 in April 2023 to 7.26, a 68% improvement. Jongwon has entered 30 competitions, more competitions than 98% 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 | 2.78 | 3.63 | top 0.51% | 3 / 536 | |
| Pyraminx | 1.86 | 3.53 | top 0.92% | 18 / 1,271 | |
| 2×2 | 1.25 | 3.01 | top 1.2% | 28 / 2,319 | |
| 3×3 | 7.26 | 9.43 | top 1.6% | 102 / 4,352 | |
| Skewb | 2.79 | 3.79 | top 4.0% | 45 / 854 | |
| 4×4 | 33.18 | 39.21 | top 5.1% | 105 / 1,308 | |
| Megaminx | 54.15 | 1:02.36 | top 7.1% | 54 / 524 | |
| 3×3 one-handed | 14.83 | 16.69 | top 7.8% | 107 / 966 | |
| Square-1 | 12.10 | 15.42 | top 10.1% | 41 / 371 | |
| 5×5 | 1:08.81 | 1:21.82 | top 10.8% | 114 / 716 | |
| 6×6 | 2:36.60 | 2:49.39 | top 29.0% | 130 / 329 | |
| 7×7 | 4:25.68 | 4:50.31 | top 39.7% | 129 / 254 | |
| 3×3 Fewest Moves | 49 moves | — | early days — 1 solve | 147 / 173 | |
| 3×3 blindfolded | 5:54.78 | — | early days — 1 solve | 195 / 217 |
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
- 1 May 2026Three personal bests in one day at All Rounders Katowice I 2026.
- 28 Feb 2026Four personal bests in one day at WIW at Opole 2026.
- 21 Feb 2026Five personal bests in one day at CF Goes Sideways Brzeziny 2026.
- 31 Jan 2026Six personal bests in one day at Żory Open 2026.
- 5 Sep 2025Three personal bests in one day at Polish Open 2025.
- 29 Jun 2025Three personal bests in one day at Osan Summer 2025.
Competitions
- All Rounders Katowice II 2026 · 15 Aug 2026 — 2 personal bests set
- Vltava Cube: July 2026 · 12 Jul 2026 — 1 personal best set
- Stockholmsligan 7: Peber - 2026 · 7 Jul 2026 — 1 personal best set
- Gniezno Open 2026 · 4 Jul 2026 — 2 personal bests set
- Żmigród Open 2026 · 20 Jun 2026 — 1 personal best set
- Beskidy Cubing Days 2026 · 30 May 2026 — 2 personal bests set
- All Rounders Katowice I 2026 · 1 May 2026 — 3 personal bests set
- Cubing Mine Rybnik IV 2026 · 25 Apr 2026 — 1 personal best set
- Głuszyca Open 2026 · 7 Mar 2026 — 1 personal best set
- WIW at Opole 2026 · 28 Feb 2026 — 4 personal bests set
- CF Goes Sideways Brzeziny 2026 · 21 Feb 2026 — 5 personal bests set
- Żory Open 2026 · 31 Jan 2026 — 6 personal bests set
- Korean Championship 2025 · 27 Dec 2025
- Cube Factory League Final Łódź 2025 · 18 Oct 2025 — 1 personal best set
- Polish Open 2025 · 5 Sep 2025 — 3 personal bests set
- Osan Summer 2025 · 29 Jun 2025 — 3 personal bests set
- Daejeon Spring 2025 · 25 May 2025
- Żory Open 2025 · 1 Feb 2025 — 4 personal bests set
- Seoul Winter 2024 · 14 Dec 2024 — 1 personal best set
- Hamchang Winter 2024 · 23 Nov 2024
- Daegu Autumn 2024 · 26 Oct 2024 — 2 personal bests set
- Norwegian Championship 2024 · 9 Aug 2024 — 11 personal bests set
- Silesian Cubing Pawłowice 2024 · 3 Aug 2024 — 9 personal bests set
- Busan Spring 2024 · 6 Apr 2024 — 6 personal bests set
- Chorzów Open 2024 · 10 Feb 2024 — 3 personal bests set
- SLS Styczeń 2024 · 20 Jan 2024 — 2 personal bests set
- Hamchang Open 2023 · 18 Nov 2023 — 3 personal bests set
- Suncheon Fall 2023 · 29 Oct 2023 — 1 personal best set
- Rubik's WCA World Championship 2023 · 12 Aug 2023 — 1 personal best set
- Daegu Hot Spring 2023 · 15 Apr 2023
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.
- Filip Śliwa — met in 179 rounds, finished ahead 24 times
- Karol Zakrzewski — met in 153 rounds, finished ahead 29 times
- Aleksander Sołonczak — met in 149 rounds, finished ahead 24 times
Next targets
- A sub-2 Clock single — 17 people have one; it is 0.78 away.
- A sub-1 Pyraminx single — 49 people have one; it is 0.86 away.
Targets move as he improves.