People · Republic of Korea
Joohan Kim (김주한)
2×2 · top 1.2% of 189,179 all-time · competing since February 2025 · 2025KIMJ03
Joohan Kim (김주한) has been competing for a year. His best event is the 2×2: a personal-best single of 1.24, set at Ansan Favorites 2026, puts him in the top 1.2% of the 189,179 people who have ever been ranked in the event, and 28th in Republic of Korea. Until November 2008, no official 2×2 solve in the world had been that fast. Across 10 competitions since February 2025, he has put 227 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 71% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 17.12 in February 2025 to 7.75, a 55% improvement. Joohan has entered ten competitions, more competitions than 92% 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 | |
|---|---|---|---|---|---|
| 2×2 | 1.24 | 3.66 | top 1.2% | 28 / 2,334 | |
| 3×3 | 7.75 | 9.25 | top 2.4% | 144 / 4,390 | |
| Skewb | 3.36 | 6.11 | top 6.9% | 72 / 874 | |
| Pyraminx | 4.27 | 6.29 | top 9.0% | 146 / 1,294 | |
| 4×4 | 39.49 | 46.58 | top 11.6% | 225 / 1,316 | |
| 3×3 one-handed | 19.12 | 22.84 | top 18.2% | 261 / 981 | |
| Megaminx | 1:17.63 | 1:31.72 | top 20.3% | 137 / 526 | |
| Clock | 9.27 | 10.84 | top 21.2% | 146 / 541 | |
| 5×5 | 1:33.87 | 1:43.41 | top 30.6% | 270 / 725 |
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
- 7 Feb 2026Four personal bests in one day at Ansan Favorites 2026.
- 17 Jan 2026First sub-10 3×3: 9.68 at Seoul Winter 2026.
- 17 Jan 2026Four personal bests in one day at Seoul Winter 2026.
- 15 Aug 2025Eight personal bests in one day at Korea Open 2025.
- 8 Mar 2025First sub-15 3×3: 14.59 at Korea Newcomers PM 2025.
- 8 Feb 2025First competition: Anyang Haseyo 2025. A 17.12 3×3 single to start from.
Competitions
- Ansan Autumn 2026 · 19 Sep 2026
- Seoul Summer 2026 · 19 Jul 2026 — 2 personal bests set
- Seoul Spring 2026 · 22 Mar 2026 — 2 personal bests set
- Ansan Favorites 2026 · 7 Feb 2026 — 4 personal bests set
- Seoul Winter 2026 · 17 Jan 2026 — 4 personal bests set
- Korean Championship 2025 · 27 Dec 2025
- Korea Open 2025 · 15 Aug 2025 — 8 personal bests set
- Please Minx Korea 2025 · 5 Apr 2025 — 1 personal best set
- Korea Newcomers PM 2025 · 8 Mar 2025 — 1 personal best set
- Anyang Haseyo 2025 · 8 Feb 2025
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.
- Minjun Kim (김민준) — met in 41 rounds, finished ahead once
- Ko Youngjin (고영진) — met in 38 rounds, finished ahead 13 times
- Yijun Kim (김이준) — met in 38 rounds, finished ahead 11 times
Next targets
- A sub-1 2×2 single — 1,050 people have one; it is 0.24 away.
- A sub-6 3×3 single — 1,419 people have one; it is 1.75 away.
Targets move as he improves.