People · China
Chengdong Xu (徐成东)
3×3 · top 21.6% of 284,439 all-time · competing since November 2014 · 2014XUCH02
Chengdong Xu (徐成东) has been competing for 12 years. His best event is the 3×3: a personal-best single of 14.18, set at Yangling Open 2014, puts him in the top 21.6% of the 284,439 people who have ever been ranked in the event, and 8,304th in China. Across 4 competitions since November 2014, he has put 105 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 12% around a typical one, an early reading from 6 counted rounds. That figure sets aside his 2 DNFs. Chengdong has entered four competitions, more competitions than 78% 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 | 14.18 | 18.08 | top 21.6% | 8,304 / 28,153 | |
| 2×2 | 4.03 | 6.31 | top 26.9% | 4,551 / 15,796 | |
| 3×3 one-handed | 24.05 | 31.71 | top 31.6% | 3,057 / 5,922 | |
| 4×4 | 57.78 | 1:04.51 | top 34.1% | 3,386 / 5,926 | |
| Skewb | 8.70 | 10.94 | top 46.4% | 2,684 / 5,004 | |
| 5×5 | 2:03.52 | 2:23.28 | top 51.4% | 2,128 / 2,816 | |
| Pyraminx | 10.91 | 15.20 | top 59.9% | 6,158 / 10,224 | |
| 3×3 Fewest Moves | 44 moves | — | early days — 1 solve | 737 / 1,058 |
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
- 8 Nov 2014First competition: Yangling Open 2014. A 18.52 3×3 single to start from.
- 8 Nov 2014First sub-15 3×3: 14.18 at Yangling Open 2014.
Competitions
- Xi'an Open 2015 · 29 Nov 2015 — 1 personal best set
- Xi'an New Year 2015 · 2 Jan 2015 — 2 personal bests set
- Xi'an Winter Open 2014 · 7 Dec 2014 — 2 personal bests set
- Yangling Open 2014 · 8 Nov 2014 — 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.
- Lorenzo Vigani Poli — met in 22 rounds, finished ahead 3 times
- Bo Wang (王擘) — met in 22 rounds, never finished ahead
- Zijia Feng (冯子甲) — met in 21 rounds, finished ahead twice
Next targets
- A sub-12 3×3 single — 39,535 people have one; it is 2.18 away.
- A sub-4 2×2 single — 49,452 people have one; it is 0.03 away.
Targets move as he improves.