People · China
Changfeng Zhang (张昌丰)
3×3 · top 8.7% of 284,439 all-time · competing since January 2017 · 2017ZHAN03
Changfeng Zhang (张昌丰) has been competing for 10 years. His best event is the 3×3: a personal-best single of 10.42, set at Yunnan Open 2018, puts him in the top 8.7% of the 284,439 people who have ever been ranked in the event, and 3,399th in China. Until February 2007, no official 3×3 solve in the world had been that fast. Across 3 competitions since January 2017, he has put 96 official solves on the record across six events. Solve to solve, his 3×3 times vary about 13% around a typical one, an early reading from 7 counted rounds. His 3×3 best has come down from 12.87 in January 2017 to 10.42, a 19% improvement. Changfeng 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 | |
|---|---|---|---|---|---|
| 3×3 | 10.42 | 13.40 | top 8.7% | 3,399 / 28,153 | |
| 2×2 | 3.10 | 5.62 | top 15.4% | 2,453 / 15,796 | |
| 3×3 one-handed | 18.29 | 20.94 | top 15.9% | 1,566 / 5,922 | |
| Pyraminx | 6.50 | 9.79 | top 23.8% | 2,709 / 10,224 | |
| 4×4 | 1:00.59 | 1:05.32 | top 37.1% | 3,641 / 5,926 | |
| Skewb | 9.63 | 18.28 | top 52.6% | 2,942 / 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, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 6 Aug 2017Four personal bests in one day at Coconut Island Open 2017.
- 22 Jan 2017First competition: Dongguan Open 2017. A 14.36 3×3 single to start from.
Competitions
- Yunnan Open 2018 · 6 Oct 2018 — 1 personal best set
- Coconut Island Open 2017 · 6 Aug 2017 — 4 personal bests set
- Dongguan Open 2017 · 22 Jan 2017 — 1 personal best set
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.
- Ming Zheng (郑鸣) — met in 17 rounds, finished ahead 7 times
- Mo Ji (季默) — met in 14 rounds, finished ahead once
- Xingyu Chen (陈星宇) — met in 13 rounds, finished ahead once
Next targets
- A sub-10 3×3 single — 21,172 people have one; it is 0.42 away.
- A sub-3 2×2 single — 26,570 people have one; it is 0.10 away.
Targets move as he improves.