People · China
Haikun Xu (徐海坤)
Pyraminx · top 11.6% of 129,321 all-time · competing since October 2012 · 2012XUHA04
Haikun Xu (徐海坤) has been competing for 14 years. His best event is the Pyraminx: a personal-best single of 4.73, set at Tangshan Open 2016, puts him in the top 11.6% of the 129,321 people who have ever been ranked in the event, and 1,383rd in China. Across 12 competitions since October 2012, he has put 159 official solves on the record across four events. Solve to solve, his 3×3 times vary about 11% around a typical one, an early reading from 8 counted rounds. His Pyraminx best has come down from 14.66 in October 2012 to 4.73, a 68% improvement. Haikun has entered twelve 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 | |
|---|---|---|---|---|---|
| Pyraminx | 4.73 | 6.15 | top 11.6% | 1,383 / 10,224 | |
| Skewb | 8.74 | 11.28 | top 46.7% | 2,699 / 5,004 | |
| 3×3 | 28.09 | 34.53 | top 59.0% | 18,149 / 28,153 | |
| 2×2 | 10.50 | 12.96 | top 79.8% | 12,875 / 15,796 |
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
- 26 Apr 2015First sub-30 3×3: 28.09 at Tianjin University Open 2015.
- 26 Apr 2015Three personal bests in one day at Tianjin University Open 2015.
- 16 Nov 2014Three personal bests in one day at BUAA Open 2014.
- 14 Oct 2012First competition: Shandong Open 2012.
Competitions
- Shenyang Winter 2016 · 11 Dec 2016
- Tianjin Open 2016 · 12 Nov 2016
- Tangshan Open 2016 · 8 May 2016 — 1 personal best set
- Xining Summer Open 2015 · 8 Aug 2015
- Tianjin University Open 2015 · 26 Apr 2015 — 3 personal bests set
- BUAA Open 2014 · 16 Nov 2014 — 3 personal bests set
- Beijing Summer Open 2014 · 6 Jul 2014 — 1 personal best set
- Tianjin University Open 2014 · 7 Jun 2014
- Shandong Spring Open 2014 · 13 Apr 2014
- Weifang Open 2013 · 14 Apr 2013 — 2 personal bests set
- Tianjin Winter 2012 · 23 Dec 2012 — 1 personal best set
- Shandong Open 2012 · 14 Oct 2012
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.
- Yanhong Chen (陈燕宏) — met in 15 rounds, finished ahead 6 times
- Zongyang Li (李宗阳) — met in 13 rounds, finished ahead 5 times
- Hongye Sun (孙虹烨) — met in 11 rounds, finished ahead 5 times
Next targets
- A sub-4 Pyraminx single — 9,892 people have one; it is 0.73 away.
- A sub-8 Skewb single — 30,246 people have one; it is 0.74 away.
Targets move as he improves.