People · China
Zifeng Zhou (周子枫)
Pyraminx · top 4.1% of 130,891 all-time · competing since April 2019 · 2019ZHOU20
Zifeng Zhou (周子枫) has been competing for 8 years. His best event is the Pyraminx: a personal-best single of 3.12, set at Kunshan Side Events 2021, puts him in the top 4.1% of the 130,891 people who have ever been ranked in the event, and 504th in China. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 8 competitions since April 2019, he has put 113 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 18% around a typical one, an early reading from 5 counted rounds. His Pyraminx best has come down from 7.33 in April 2019 to 3.12, a 57% improvement. Zifeng has entered eight competitions, more competitions than 90% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| Pyraminx | 3.12 | 6.93 | top 4.1% | 504 / 10,269 | |
| 3×3 | 12.70 | 14.74 | top 16.5% | 6,555 / 28,499 | |
| Skewb | 5.78 | 7.04 | top 24.2% | 1,508 / 5,030 | |
| 4×4 | 57.89 | — | top 34.3% | 3,453 / 5,999 | |
| Clock | 12.17 | 15.84 | top 35.8% | 878 / 1,887 | |
| 2×2 | 5.27 | 5.84 | top 42.7% | 7,444 / 15,939 | |
| Megaminx | 1:56.26 | — | early days — 3 solves | 1,234 / 1,693 | |
| 5×5 | 1:58.13 | — | early days — 2 solves | 2,079 / 2,857 | |
| Square-1 | 1:06.40 | — | early days — 1 solve | 1,322 / 1,373 |
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 Apr 2021First sub-15 3×3: 12.70 at Beijing Spring AM 2021.
- 8 Dec 2019First sub-20 3×3: 18.30 at Wuxi Winter 2019.
- 8 Dec 2019Three personal bests in one day at Wuxi Winter 2019.
- 20 Apr 2019First competition: Kunshan Open 2019. A 27.89 3×3 single to start from.
Competitions
- Kunshan Side Events 2021 · 1 May 2021 — 2 personal bests set
- Beijing Spring AM 2021 · 4 Apr 2021 — 2 personal bests set
- Beijing Spring Special 2021 · 3 Apr 2021 — 2 personal bests set
- Wuxi Winter 2019 · 8 Dec 2019 — 3 personal bests set
- Hangzhou Autumn 2019 · 9 Nov 2019 — 2 personal bests set
- Wuxi Open 2019 · 10 Aug 2019
- China Championship 2019 · 26 Jul 2019 — 2 personal bests set
- Kunshan Open 2019 · 20 Apr 2019
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.
- Po-Ling Lin (林柏伶) — met in 23 rounds, finished ahead 8 times
- En-Tzu Lin (林恩慈) — met in 21 rounds, finished ahead 6 times
- Zhiyuan Ma (马之元) — met in 20 rounds, never finished ahead
Next targets
- A sub-3 Pyraminx single — 4,783 people have one; it is 0.12 away.
- A sub-12 3×3 single — 40,277 people have one; it is 0.70 away.
Targets move as he improves.