People · Republic of Korea
Ken Cha (차정현)
Pyraminx · top 43.1% of 129,321 all-time · competing since July 2014 · 2014CHAK01
Ken Cha (차정현) has been competing for 12 years. His best event is the Pyraminx: a personal-best single of 8.80, set at Toronto Limited Spring 2016, puts him in the top 43.1% of the 129,321 people who have ever been ranked in the event, and 638th in Republic of Korea. Across 9 competitions since July 2014, he has put 145 official solves on the record across six events. Solve to solve, his 3×3 times vary about 17% around a typical one, an early reading from 9 counted rounds. His 3×3 best has come down from 43.12 in July 2014 to 22.67, a 47% improvement. Ken has entered nine competitions, more competitions than 91% 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 | |
|---|---|---|---|---|---|
| Pyraminx | 8.80 | 14.38 | top 43.1% | 638 / 1,271 | |
| 3×3 | 22.67 | 29.90 | top 47.1% | 2,416 / 4,352 | |
| 2×2 | 6.69 | 9.14 | top 57.8% | 1,587 / 2,319 | |
| 3×3 one-handed | 47.22 | — | top 74.0% | 804 / 966 | |
| Skewb | 14.98 | 19.69 | top 78.2% | 706 / 854 | |
| 4×4 | 2:35.24 | — | early days — 2 solves | 1,262 / 1,308 |
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
- 28 Apr 2018Three personal bests in one day at Oakville Limited Spring 2018.
- 30 Apr 2016Five personal bests in one day at Toronto Limited Spring 2016.
- 28 Nov 2015First sub-30 3×3: 27.28 at Toronto Open Fall 2015.
- 28 Nov 2015Four personal bests in one day at Toronto Open Fall 2015.
- 22 Nov 2014Three personal bests in one day at Toronto Open Fall 2014.
- 5 Jul 2014First competition: CanadianCUBING Fifty 2014. A 43.12 3×3 single to start from.
Competitions
- Oakville Limited Spring 2018 · 28 Apr 2018 — 3 personal bests set
- Pickering Spring 2018 · 24 Mar 2018
- Pickering 2017 · 14 Oct 2017 — 1 personal best set
- London Limited Spring 2017 · 25 Mar 2017 — 1 personal best set
- Toronto Limited Spring 2016 · 30 Apr 2016 — 5 personal bests set
- Toronto Open Fall 2015 · 28 Nov 2015 — 4 personal bests set
- Canadian Open 2015 · 6 Jun 2015 — 1 personal best set
- Toronto Open Fall 2014 · 22 Nov 2014 — 3 personal bests set
- CanadianCUBING Fifty 2014 · 5 Jul 2014
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.
- Leo Min-Bedford — met in 35 rounds, never finished ahead
- Ryan Minjun Cho — met in 34 rounds, never finished ahead
- Jonathan Esparaz — met in 30 rounds, never finished ahead
Next targets
- A sub-8 Pyraminx single — 46,752 people have one; it is 0.80 away.
- A sub-20 3×3 single — 113,584 people have one; it is 2.67 away.
Targets move as he improves.