People · Republic of Korea
Jimin Ko (고지민)
3×3 · top 35.6% of 284,439 all-time · competing since February 2024 · 2024KOJI01
Jimin Ko (고지민) has been competing for 3 years. His best event is the 3×3: a personal-best single of 18.49, set at Korea Open 2026, puts him in the top 35.6% of the 284,439 people who have ever been ranked in the event, and 1,869th in Republic of Korea. Across 3 competitions since February 2024, he has put 74 official solves on the record across six events. His 2×2 best has come down from 7.13 in February 2024 to 5.65, a 21% improvement. Jimin has entered three competitions, more competitions than 69% 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 | |
|---|---|---|---|---|---|
| 3×3 | 18.49 | 21.16 | top 35.6% | 1,869 / 4,352 | |
| Skewb | 7.27 | 10.24 | top 35.8% | 368 / 854 | |
| Pyraminx | 8.53 | 11.84 | top 40.8% | 604 / 1,271 | |
| 4×4 | 1:07.73 | 1:16.43 | top 44.6% | 740 / 1,308 | |
| 2×2 | 5.65 | 8.26 | top 47.1% | 1,342 / 2,319 | |
| 5×5 | 2:13.33 | 2:24.38 | top 57.3% | 465 / 716 |
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, 2×2. Faster is higher — the axis is the right way up.
The story so far
- 15 Aug 2026First sub-20 3×3: 18.49 at Korea Open 2026.
- 15 Aug 2026Five personal bests in one day at Korea Open 2026.
- 21 Feb 2026Three personal bests in one day at Cube Camp in Jeju 2026.
- 3 Feb 2024First competition: Daegu Cold Winter 2024. A 24.88 3×3 single to start from.
Competitions
- Korea Open 2026 · 15 Aug 2026 — 5 personal bests set
- Cube Camp in Jeju 2026 · 21 Feb 2026 — 3 personal bests set
- Daegu Cold Winter 2024 · 3 Feb 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.
- Keunsoo Heo (허근수) — met in 16 rounds, finished ahead 5 times
- Gyutae Park (박규태) — met in 16 rounds, finished ahead once
- Ko Youngjin (고영진) — met in 16 rounds, never finished ahead
Next targets
- A sub-15 3×3 single — 69,493 people have one; it is 3.49 away.
- A sub-6 Skewb single — 18,841 people have one; it is 1.27 away.
Targets move as he improves.