People · China
Zhengyin Chen (陈正胤)
Megaminx · top 2.4% of 34,786 all-time · competing since October 2013 · 2013CHEN73
Zhengyin Chen (陈正胤) has been competing for 13 years. His best event is the Megaminx: a personal-best single of 42.80, set at China Championship 2019, puts him in the top 2.4% of the 34,786 people who have ever been ranked in the event, and 45th in China. Until April 2011, no official Megaminx solve in the world had been that fast. Across 13 competitions since October 2013, he has put 327 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 10% around a typical one, steadier than 97% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 13.99 in October 2013 to 9.02, a 36% improvement. Zhengyin has entered 13 competitions, more competitions than 94% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| Megaminx | 42.80 | 50.48 | top 2.4% | 45 / 1,678 | |
| 3×3 | 9.02 | 10.47 | top 4.9% | 1,865 / 28,153 | |
| 3×3 one-handed | 15.32 | 18.73 | top 8.8% | 833 / 5,922 | |
| Pyraminx | 4.25 | 5.70 | top 8.9% | 1,068 / 10,224 | |
| 4×4 | 37.49 | 38.27 | top 9.2% | 975 / 5,926 | |
| 5×5 | 1:15.72 | 1:20.22 | top 15.9% | 772 / 2,816 | |
| 2×2 | 3.30 | 4.45 | top 17.8% | 2,874 / 15,796 | |
| Skewb | 7.73 | 9.97 | top 39.3% | 2,338 / 5,004 | |
| 3×3 blindfolded | 3:49.10 | — | early days — 1 solve | 899 / 1,183 |
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
- 21 Apr 2019Three personal bests in one day at Peking University Spring 2019.
- 2 Dec 2018First sub-10 3×3: 9.24 at Qinhuangdao Winter 2018.
- 8 Jul 2018Three personal bests in one day at Linfen Open 2018.
- 30 Apr 2018Six personal bests in one day at Beijing Open 2018.
- 1 Oct 2013First competition: Guangdong Open 2013. A 13.99 3×3 single to start from.
Competitions
- Tianjin Autumn 2019 · 20 Oct 2019
- China Championship 2019 · 26 Jul 2019 — 1 personal best set
- Peking University Spring 2019 · 21 Apr 2019 — 3 personal bests set
- Qinhuangdao Open 2019 · 6 Apr 2019 — 2 personal bests set
- Shijiazhuang Winter 2018 · 16 Dec 2018 — 2 personal bests set
- Qinhuangdao Winter 2018 · 2 Dec 2018 — 1 personal best set
- China Championship 2018 · 2 Oct 2018 — 1 personal best set
- WCA Asian Championship 2018 · 17 Aug 2018 — 2 personal bests set
- Linfen Open 2018 · 8 Jul 2018 — 3 personal bests set
- Beijing Open 2018 · 30 Apr 2018 — 6 personal bests set
- Beijing Ten Years Open 2017 · 17 Sep 2017 — 2 personal bests set
- Beijing Open 2017 · 24 Jun 2017 — 2 personal bests set
- Guangdong Open 2013 · 1 Oct 2013
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.
- Chenhao Ma (马晨皓) — met in 34 rounds, finished ahead 20 times
- Linxiao Xu (徐林霄) — met in 30 rounds, finished ahead 26 times
- Yubo Ji (纪宇博) — met in 30 rounds, finished ahead 12 times
Next targets
- A sub-40 Megaminx single — 557 people have one; it is 2.80 away.
- A sub-8 3×3 single — 7,931 people have one; it is 1.02 away.
Targets move as he improves.