People · China
Guozheng Xu (徐国正)
3×3 · top 10.0% of 284,439 all-time · competing since May 2009 · 2009XUGU01
Guozheng Xu (徐国正) has been competing for 17 years. His best event is the 3×3: a personal-best single of 10.84, set at Hefei Summer 2018, puts him in the top 10.0% of the 284,439 people who have ever been ranked in the event, and 3,909th in China. Until August 2006, no official 3×3 solve in the world had been that fast. Across 16 competitions since May 2009, he has put 403 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 82% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 15.44 in May 2009 to 10.84, a 30% improvement. Guozheng has entered 16 competitions, more competitions than 96% 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 | 10.84 | 12.41 | top 10.0% | 3,909 / 28,153 | |
| 4×4 | 42.29 | 48.65 | top 14.9% | 1,605 / 5,926 | |
| 5×5 | 1:25.38 | 1:31.58 | top 23.6% | 1,119 / 2,816 | |
| 6×6 | 2:29.90 | 2:44.51 | top 25.5% | 549 / 1,349 | |
| 7×7 | 4:02.61 | 4:18.17 | top 31.7% | 616 / 1,261 | |
| 2×2 | 4.96 | 6.40 | top 38.8% | 6,700 / 15,796 | |
| Megaminx | 3:48.25 | 4:22.59 | top 87.8% | 1,636 / 1,678 |
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
- 14 Jul 2018Eight personal bests in one day at Hefei Summer 2018.
- 14 May 2011Three personal bests in one day at Nanjing Spring 2011.
- 30 May 2010Four personal bests in one day at Taiyuan 2010.
- 8 Nov 2009Three personal bests in one day at Harbin Open 2009.
- 16 Aug 2009First sub-15 3×3: 14.81 at Beijing Summer Open 2009.
- 16 Aug 2009Five personal bests in one day at Beijing Summer Open 2009.
Competitions
- Quanzhou Open 2018 · 16 Sep 2018 — 1 personal best set
- Hefei Summer 2018 · 14 Jul 2018 — 8 personal bests set
- Shantou Open 2016 · 7 Aug 2016
- Guangzhou Rubik's Cube Days 2016 · 5 Mar 2016
- Suzhou Open 2011 · 3 Oct 2011 — 1 personal best set
- Hangzhou Open 2011 · 20 Aug 2011
- Nanjing Spring 2011 · 14 May 2011 — 3 personal bests set
- XinXiang Spring Festival Open 2011 · 13 Feb 2011 — 2 personal bests set
- Guangdong Open 2010 · 3 Oct 2010 — 1 personal best set
- ChangChun 2010 · 1 Aug 2010 — 2 personal bests set
- Inner Mongolia 2010 · 24 Jul 2010
- Taiyuan 2010 · 30 May 2010 — 4 personal bests set
- Henan Open 2010 · 2 May 2010 — 2 personal bests set
- Harbin Open 2009 · 8 Nov 2009 — 3 personal bests set
- Beijing Summer Open 2009 · 16 Aug 2009 — 5 personal bests set
- Beijing Metropolis Open 2009 · 2 May 2009 — 2 personal bests 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.
- Yunqi Ouyang (欧阳韵奇) — met in 28 rounds, finished ahead 4 times
- Ming Zheng (郑鸣) — met in 27 rounds, finished ahead 15 times
- Lin Chen (陈霖) — met in 23 rounds, finished ahead 8 times
Next targets
- A sub-10 3×3 single — 21,172 people have one; it is 0.84 away.
- A sub-40 4×4 single — 10,180 people have one; it is 2.29 away.
Targets move as he improves.