People · China
Chenghao Zhuang (庄承昊)
Pyraminx · top 3.1% of 130,891 all-time · competing since November 2018 · 2018ZHUA12
Chenghao Zhuang (庄承昊) has been competing for 8 years. His best event is the Pyraminx: a personal-best single of 2.84, set at Shenzhen Cubing 10th Anniversary 2019, puts him in the top 3.1% of the 130,891 people who have ever been ranked in the event, and 371st in China. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 3 competitions since November 2018, he has put 71 official solves on the record across five events. Solve to solve, his 3×3 times vary about 11% around a typical one, an early reading from 5 counted rounds. His 3×3 best has come down from 19.93 in November 2018 to 11.52, a 42% improvement. Chenghao has entered three competitions, more competitions than 69% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| Pyraminx | 2.84 | 6.98 | top 3.1% | 371 / 10,269 | |
| 3×3 | 11.52 | 13.20 | top 12.3% | 4,930 / 28,499 | |
| 2×2 | 3.16 | 3.98 | top 16.2% | 2,642 / 15,939 | |
| Skewb | 4.89 | 7.82 | top 17.4% | 1,089 / 5,030 | |
| 4×4 | 1:18.17 | — | early days — 2 solves | 4,828 / 5,999 |
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 Aug 2019Five personal bests in one day at Shenzhen Cubing 10th Anniversary 2019.
- 2 Mar 2019First sub-15 3×3: 13.52 at Shenzhen 3x3 Days 2019.
- 18 Nov 2018First competition: Shenzhen Nanshan 2018. A 19.93 3×3 single to start from.
Competitions
- Shenzhen Cubing 10th Anniversary 2019 · 24 Aug 2019 — 5 personal bests set
- Shenzhen 3x3 Days 2019 · 2 Mar 2019 — 2 personal bests set
- Shenzhen Nanshan 2018 · 18 Nov 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 his.
- You Wu (吴悠) — met in 15 rounds, finished ahead 5 times
- Taoran Chen (陈陶然) — met in 15 rounds, finished ahead twice
- Zijian Cai (蔡子健) — met in 15 rounds, never finished ahead
Next targets
- A sub-2 Pyraminx single — 1,497 people have one; it is 0.84 away.
- A sub-10 3×3 single — 21,606 people have one; it is 1.52 away.
Targets move as he improves.