People · China
Guohua Chai (柴国华)
Skewb · top 1.1% of 73,281 all-time · competing since April 2018 · 2018CHAI05
Guohua Chai (柴国华) has been competing for 8 years. His best event is the Skewb: a personal-best single of 1.90, set at Shijiazhuang Open 2018, puts him in the top 1.1% of the 73,281 people who have ever been ranked in the event, and 49th in China. Until December 2014, no official Skewb solve in the world had been that fast. Across 7 competitions since April 2018, he has put 328 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 16% around a typical one; 94% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 10.93 in April 2018 to 9.42, a 14% improvement. Guohua has entered seven competitions, more competitions than 88% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| Skewb | 1.90 | 5.51 | top 1.1% | 49 / 5,004 | |
| 2×2 | 1.81 | 2.66 | top 3.6% | 483 / 15,796 | |
| 3×3 one-handed | 13.42 | 16.24 | top 5.1% | 469 / 5,922 | |
| 3×3 | 9.42 | 10.73 | top 5.9% | 2,272 / 28,153 | |
| 5×5 | 1:04.26 | 1:08.66 | top 7.9% | 380 / 2,816 | |
| 4×4 | 36.91 | 44.35 | top 8.6% | 883 / 5,926 | |
| Pyraminx | 5.84 | 7.27 | top 18.8% | 2,164 / 10,224 | |
| 7×7 | 4:49.84 | 4:59.47 | top 47.7% | 855 / 1,261 |
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
- 2 Oct 2018First sub-10 3×3: 9.42 at China Championship 2018.
- 2 Oct 2018Four personal bests in one day at China Championship 2018.
- 29 Jul 2018Three personal bests in one day at Beijing Summer 2018.
- 30 Apr 2018First competition: Beijing Open 2018. A 11.13 3×3 single to start from.
Competitions
- China Championship 2019 · 26 Jul 2019 — 2 personal bests set
- Shijiazhuang Open 2019 · 30 Jun 2019 — 2 personal bests set
- Beijing Winter 2018 · 31 Dec 2018 — 2 personal bests set
- China Championship 2018 · 2 Oct 2018 — 4 personal bests set
- Beijing Summer 2018 · 29 Jul 2018 — 3 personal bests set
- Shijiazhuang Open 2018 · 10 Jun 2018 — 1 personal best set
- Beijing Open 2018 · 30 Apr 2018 — 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.
- Chenhao Ma (马晨皓) — met in 49 rounds, finished ahead 13 times
- Yu Feng (冯煜) — met in 48 rounds, finished ahead 8 times
- Sheng Cao (曹晟) — met in 46 rounds, finished ahead 4 times
Next targets
- A sub-1 Skewb single — 35 people have one; it is 0.90 away.
- A sub-1 2×2 single — 1,032 people have one; it is 0.81 away.
Targets move as he improves.