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The Middle Three
People → China → Jiazheng Zhao (赵家正)

People · China

Jiazheng Zhao (赵家正)

3×3 one-handed · top 2.7% of 73,695 all-time · competing since July 2014 · 2014ZHAO10

Jiazheng Zhao (赵家正) has been competing for 12 years. His best event is the 3×3 one-handed: a personal-best single of 11.73, set at Bay Area Speedcubin' 12 2018, puts him in the top 2.7% of the 73,695 people who have ever been ranked in the event, and 225th in China. Until August 2010, no official 3×3 one-handed solve in the world had been that fast. Across 45 competitions since July 2014, he has put 1,573 official solves on the record across 15 events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 54% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 19.97 in July 2014 to 9.20, a 54% improvement. Jiazheng has entered 45 competitions, more competitions than 99% of everyone who has ever competed.

3×3 one-handed
best event — top 2.7% of 73,695 all-time
11.73
signature single · Bay Area Speedcubin' 12 2018
1,573
official solves on the record
13%
solve-to-solve spread · steadier than 54% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
3×3 one-handed11.7315.27
top 2.7%225 / 5,922
Pyraminx3.436.53
top 5.2%617 / 10,224
3×39.2011.25
top 5.3%2,059 / 28,153
2×22.384.07
top 7.8%1,121 / 15,796
Megaminx56.221:04.36
top 8.0%190 / 1,678
4×437.2941.90
top 9.0%944 / 5,926
Skewb4.226.48
top 12.4%746 / 5,004
3×3 Multi-Blind10 of 11 cubes · 48:32
top 19.2%52 / 278
3×3 Fewest Moves32 moves37.67
top 20.4%216 / 1,058
3×3 blindfolded1:22.871:40.26
top 20.6%281 / 1,183
5×51:27.671:36.94
top 25.4%1,184 / 2,816
Square-120.7925.18
top 29.7%506 / 1,362
Clock12.8814.84
top 39.1%933 / 1,843
7×75:04.695:30.51
top 51.9%912 / 1,261
6×63:32.223:57.17
top 55.6%1,030 / 1,349

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

Suzhou Open 2014: 19.97Hangzhou Winter Open 2014: 15.22Nanchang Open 2015: 13.63Wuxi Open 2015: 13.28Zhenjiang Open 2015: 12.25Shanghai Spring 2016: 12.30Xi'an Cherry Blossom 2016: 12.13Shanghai Songjiang Open 2016: 11.52Hefei Open 2016: 12.01Berkeley Summer 2016: 13.08Berkeley Fall 2016: 12.46Armin Open 2017: 11.74Berkeley Winter 2017: 13.21Berkeley Spring 2017: 11.326.25 Bay Area 2017: 10.21San Ramon 2017: 11.69Northwest Championships 2017: 10.86SacCubing II 2017: 12.06Berkeley Summer 2017: 10.34San Francisco Bay Open 2017: 10.62Berkeley Fall 2017: 13.21Berkeley Winter 2018: 10.69Berkeley Spring 2018: 12.09Colorado Qualifier 2018: 9.65CubingUSA Nationals 2018: 12.40SacCubing V 2018: 11.21Berkeley Summer 2018: 9.35Bay Area Speedcubin' 12 2018: 9.20Berkeley Fall 2018: 9.35SJTU Winter Open 2018: 10.77Bay Area Speedcubin' 14 2019: 10.67Berkeley Spring 2019: 11.15Bay Area Speedcubin' 17 2019: 10.50CubingUSA Western Championship 2019: 9.82SacCubing VIII 2019: 10.57Berkeley Summer 2019: 10.32Bay Area Speedcubin' 20 2019: 10.05Bay Area Speedcubin' 21 2019: 11.69Bay Area Speedcubin' 22 2019: 9.73SacCubing IX 2020: 10.64Bay Area Speedcubin' 24 2020: 10.64SacCubing X 2021: 11.679.2019.9712 Jul 201413 Nov 2021

Best single per competition, 3×3. Faster is higher — the axis is the right way up.

The story so far

Competitions

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.

Next targets

  • A sub-10 3×3 one-handed single — 779 people have one; it is 1.73 away.
  • A sub-3 Pyraminx single — 4,700 people have one; it is 0.43 away.

Targets move as he improves.