People · Republic of Korea
Um Jun Ha
Skewb · top 8.0% of 73,281 all-time · competing since October 2015 · 2015HAUM01
Um Jun Ha has been competing for 11 years. His best event is the Skewb: a personal-best single of 3.55, set at Jeonju Spring 2016, puts him in the top 8.0% of the 73,281 people who have ever been ranked in the event, and 83rd in Republic of Korea. Until February 2014, no official Skewb solve in the world had been that fast. Across 4 competitions since October 2015, he has put 90 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 15% around a typical one, an early reading from 5 counted rounds. His 3×3 best has come down from 18.76 in October 2015 to 12.41, a 34% improvement. Um has entered four competitions, more competitions than 78% 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 | 3.55 | 5.69 | top 8.0% | 83 / 854 | |
| 3×3 | 12.41 | 14.75 | top 15.3% | 854 / 4,352 | |
| 4×4 | 48.51 | 52.81 | top 22.8% | 410 / 1,308 | |
| 5×5 | 1:28.59 | 1:31.91 | top 26.1% | 239 / 716 | |
| 2×2 | 4.68 | 7.32 | top 35.2% | 1,041 / 2,319 | |
| Pyraminx | 10.00 | 12.97 | top 53.0% | 757 / 1,271 | |
| 3×3 one-handed | 36.28 | 45.24 | top 59.6% | 686 / 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
- 16 Aug 2019First sub-15 3×3: 12.41 at Korean Championship 2019.
- 16 Aug 2019Three personal bests in one day at Korean Championship 2019.
- 2 Apr 2016Four personal bests in one day at Jeonju Spring 2016.
- 9 Oct 2015First competition: Korean KAIST Style 2015. A 18.76 3×3 single to start from.
Competitions
- Korean Championship 2019 · 16 Aug 2019 — 3 personal bests set
- Jeonju Spring 2016 · 2 Apr 2016 — 4 personal bests set
- Korea Winter 2015 · 19 Dec 2015
- 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 16 rounds, finished ahead 3 times
- Shin Myeong Park (박신명) — met in 15 rounds, finished ahead twice
- Yu Byeong-Seon (유병선) — met in 15 rounds, finished ahead once
Next targets
- A sub-3 Skewb single — 3,646 people have one; it is 0.55 away.
- A sub-12 3×3 single — 39,535 people have one; it is 0.41 away.
Targets move as he improves.