People · China
Haichuan Zhang (章海川)
2×2 · top 7.7% of 186,767 all-time · competing since April 2017 · 2017ZHAN39
Haichuan Zhang (章海川) has been competing for 9 years. His best event is the 2×2: a personal-best single of 2.37, set at Nanchang Spring 2017, puts him in the top 7.7% of the 186,767 people who have ever been ranked in the event, and 1,107th in China. Until February 2008, no official 2×2 solve in the world had been that fast. Across 1 competition since April 2017, he has put 37 official solves on the record across eight events.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| 2×2 | 2.37 | 5.43 | top 7.7% | 1,107 / 15,796 | |
| Pyraminx | 6.50 | 13.34 | top 23.8% | 2,709 / 10,224 | |
| 3×3 | 16.90 | 20.90 | top 30.7% | 11,190 / 28,153 | |
| 3×3 one-handed | 26.31 | 29.54 | top 37.6% | 3,526 / 5,922 | |
| Megaminx | 2:02.89 | 2:12.95 | top 47.4% | 1,260 / 1,678 | |
| 4×4 | 1:17.62 | — | early days — 2 solves | 4,732 / 5,926 | |
| 5×5 | 2:13.96 | — | early days — 2 solves | 2,299 / 2,816 | |
| Skewb | 14.04 | 17.45 | top 74.9% | 3,880 / 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 story so far
- 15 Apr 2017First competition: Nanchang Spring 2017. A 16.90 3×3 single to start from.
Competitions
- Nanchang Spring 2017 · 15 Apr 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.
- Qingxin Lin (林庆鑫) — met in 9 rounds, finished ahead twice
- Baiqiang Dong (董百强) — met in 9 rounds, finished ahead once
- Yifeng Zhao (赵益沣) — met in 8 rounds, finished ahead 3 times
Next targets
- A sub-2 2×2 single — 8,848 people have one; it is 0.37 away.
- A sub-6 Pyraminx single — 25,870 people have one; it is 0.50 away.
Targets move as he improves.