People · Republic of Korea
JeongYun Ham (함정윤)
Skewb · top 38.3% of 73,281 all-time · competing since October 2015 · 2015HAMJ01
JeongYun Ham (함정윤) has been competing for 11 years. His best event is the Skewb: a personal-best single of 7.61, set at KAIST Spring 2017, puts him in the top 38.3% of the 73,281 people who have ever been ranked in the event, and 387th in Republic of Korea. Across 6 competitions since October 2015, he has put 75 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 14% around a typical one, an early reading from 5 counted rounds. JeongYun 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 | |
|---|---|---|---|---|---|
| Skewb | 7.61 | 12.89 | top 38.3% | 387 / 854 | |
| Clock | 12.88 | 16.46 | top 39.1% | 259 / 536 | |
| 3×3 | 20.37 | 23.26 | top 41.0% | 2,119 / 4,352 | |
| 4×4 | 1:15.09 | 1:25.94 | top 51.7% | 851 / 1,308 | |
| 2×2 | 7.02 | 8.48 | top 60.6% | 1,642 / 2,319 | |
| Square-1 | 48.65 | 1:05.77 | top 74.8% | 298 / 371 | |
| 3×3 one-handed | 57.12 | 1:07.20 | top 82.2% | 866 / 966 |
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
- 9 Oct 2015First competition: Korean KAIST Style 2015. A 20.61 3×3 single to start from.
Competitions
- Seoul Winter 2024 · 14 Dec 2024 — 1 personal best set
- Rubik's WCA World Championship 2023 · 12 Aug 2023
- KAIST Spring 2017 · 9 Apr 2017 — 1 personal best set
- 3x3x3 HanMaDang 2017 · 18 Feb 2017
- Korea Winter 2015 · 19 Dec 2015 — 1 personal best set
- Korean KAIST Style 2015 · 9 Oct 2015
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.
- Choi Goho (최고호) — met in 14 rounds, never finished ahead
- Minseo Gu (구민서) — met in 13 rounds, finished ahead once
- Doyul Kim (김도율) — met in 11 rounds, never finished ahead
Next targets
- A sub-6 Skewb single — 18,841 people have one; it is 1.61 away.
- A sub-12 Clock single — 11,202 people have one; it is 0.88 away.
Targets move as he improves.