People · Republic of Korea
Ji-Yu Kim
3×3 · top 6.3% of 284,439 all-time · competing since May 2016 · 2016KIMJ08
Ji-Yu Kim has been competing for 10 years. His best event is the 3×3: a personal-best single of 9.58, set at Korean Championship 2018, puts him in the top 6.3% of the 284,439 people who have ever been ranked in the event, and 370th in Republic of Korea. Until November 2007, no official 3×3 solve in the world had been that fast. Across 6 competitions since May 2016, he has put 110 official solves on the record across six events. Solve to solve, his 3×3 times vary about 13% around a typical one; 54% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 12.47 in May 2016 to 9.58, a 23% improvement. He has entered six competitions, more competitions than 86% 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 | 9.58 | 11.60 | top 6.3% | 370 / 4,352 | |
| 3×3 one-handed | 16.12 | 21.49 | top 10.5% | 154 / 966 | |
| 4×4 | 41.44 | 47.76 | top 13.8% | 263 / 1,308 | |
| 2×2 | 3.08 | 4.25 | top 15.2% | 453 / 2,319 | |
| Skewb | 5.25 | 7.98 | top 20.1% | 203 / 854 | |
| Megaminx | 1:23.54 | 1:28.59 | top 24.1% | 165 / 524 |
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
- 24 Feb 2018First sub-10 3×3: 9.75 at CWR Winter 2018.
- 24 Feb 2018Three personal bests in one day at CWR Winter 2018.
- 12 Aug 2016Four personal bests in one day at Korean Championship 2016.
- 22 May 2016First competition: Cube Is Good 2016. A 12.47 3×3 single to start from.
Competitions
- Korean Championship 2018 · 20 Jul 2018 — 2 personal bests set
- CWR Winter 2018 · 24 Feb 2018 — 3 personal bests set
- Cubedu Korea 2018 · 26 Jan 2018 — 2 personal bests set
- CWR Fall 2017 · 28 Oct 2017
- Korean Championship 2016 · 12 Aug 2016 — 4 personal bests set
- Cube Is Good 2016 · 22 May 2016
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.
- Minseo Gu (구민서) — met in 22 rounds, finished ahead once
- Choi Goho (최고호) — met in 19 rounds, finished ahead 14 times
- Doyul Kim (김도율) — met in 19 rounds, finished ahead once
Next targets
- A sub-8 3×3 single — 7,931 people have one; it is 1.58 away.
- A sub-15 3×3 one-handed single — 5,987 people have one; it is 1.12 away.
Targets move as he improves.