People · China
Han Chu (储菡)
Pyraminx · top 4.2% of 129,321 all-time · competing since April 2018 · 2018CHUH01
Han Chu (储菡) has been competing for 8 years. Her best event is the Pyraminx: a personal-best single of 3.15, set at Kunshan Side Events 2021, puts her in the top 4.2% of the 129,321 people who have ever been ranked in the event, and 502nd in China. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 6 competitions since April 2018, she has put 120 official solves on the record across six events. Solve to solve, her 3×3 times vary about 16% around a typical one, an early reading from 6 counted rounds. Her Pyraminx best has come down from 11.58 in April 2018 to 3.15, a 73% improvement. Han 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 | China | |
|---|---|---|---|---|---|
| Pyraminx | 3.15 | 3.82 | top 4.2% | 502 / 10,224 | |
| 3×3 | 11.98 | 13.27 | top 13.8% | 5,462 / 28,153 | |
| 2×2 | 3.34 | 6.23 | top 18.3% | 2,966 / 15,796 | |
| 3×3 one-handed | 19.68 | 22.74 | top 19.6% | 1,965 / 5,922 | |
| Clock | 10.70 | 12.51 | top 28.6% | 668 / 1,843 | |
| Skewb | 9.76 | 10.51 | top 53.4% | 2,980 / 5,004 |
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, Pyraminx. Faster is higher — the axis is the right way up.
The story so far
- 4 Aug 2019Three personal bests in one day at Suzhou Open 2019.
- 20 Apr 2019First sub-20 3×3: 14.69 at Kunshan Open 2019.
- 20 Apr 2019First sub-15 3×3: 14.69 at Kunshan Open 2019.
- 20 Apr 2019Five personal bests in one day at Kunshan Open 2019.
- 21 Apr 2018First competition: Kunshan Open 2018. A 23.23 3×3 single to start from.
Competitions
- Shanghai Summer 2026 · 1 Aug 2026 — 2 personal bests set
- Kunshan Side Events 2021 · 1 May 2021 — 1 personal best set
- Suzhou Open 2019 · 4 Aug 2019 — 3 personal bests set
- Kunshan Open 2019 · 20 Apr 2019 — 5 personal bests set
- Suzhou Open 2018 · 5 Aug 2018 — 1 personal best set
- Kunshan Open 2018 · 21 Apr 2018
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 her.
- Zhengkai Xu (徐正凯) — met in 17 rounds, finished ahead 4 times
- Lu Zhang (张陆) — met in 14 rounds, finished ahead 4 times
- Sicheng Gu (顾思成) — met in 14 rounds, never finished ahead
Next targets
- A sub-3 Pyraminx single — 4,700 people have one; it is 0.15 away.
- A sub-10 3×3 single — 21,172 people have one; it is 1.98 away.
Targets move as she improves.