People · Republic of Korea
Sehyun Kim (김세현)
2×2 · top 7.1% of 186,767 all-time · competing since January 2026 · 2026KIMS02
Sehyun Kim (김세현) has been competing for 8 months. His best event is the 2×2: a personal-best single of 2.31, set at Cube Camp in Jeju 2026, puts him in the top 7.1% of the 186,767 people who have ever been ranked in the event, and 200th in Republic of Korea. Until February 2008, no official 2×2 solve in the world had been that fast. Across 3 competitions since January 2026, he has put 64 official solves on the record across five events. Sehyun 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 | |
|---|---|---|---|---|---|
| 2×2 | 2.31 | 5.17 | top 7.1% | 200 / 2,319 | |
| 3×3 | 14.46 | 16.85 | top 22.6% | 1,217 / 4,352 | |
| Pyraminx | 6.72 | 9.40 | top 25.6% | 391 / 1,271 | |
| 4×4 | 55.64 | 1:04.17 | top 31.5% | 547 / 1,308 | |
| 5×5 | 2:16.98 | 2:40.63 | top 59.3% | 480 / 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, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 19 Jul 2026First sub-15 3×3: 14.46 at Seoul Summer 2026.
- 21 Feb 2026Three personal bests in one day at Cube Camp in Jeju 2026.
- 17 Jan 2026First competition: Seoul Winter 2026. A 20.17 3×3 single to start from.
- 17 Jan 2026First sub-20 3×3: 15.12 at Seoul Winter 2026.
Competitions
- Seoul Summer 2026 · 19 Jul 2026 — 2 personal bests set
- Cube Camp in Jeju 2026 · 21 Feb 2026 — 3 personal bests set
- Seoul Winter 2026 · 17 Jan 2026 — 1 personal best set
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.
- YongGeal Lee (이용걸) — met in 13 rounds, finished ahead 12 times
- A-Jung Kim (김아정) — met in 13 rounds, finished ahead 10 times
- Keunsoo Heo (허근수) — met in 13 rounds, finished ahead 8 times
Next targets
- A sub-2 2×2 single — 8,848 people have one; it is 0.31 away.
- A sub-12 3×3 single — 39,535 people have one; it is 2.46 away.
Targets move as he improves.