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The Middle Three
People → China → Youbin Zheng (郑友彬)

People · China

Youbin Zheng (郑友彬)

Pyraminx · top 6.6% of 129,321 all-time · competing since January 2017 · 2017ZHEN01

Youbin Zheng (郑友彬) has been competing for 10 years. His best event is the Pyraminx: a personal-best single of 3.77, set at Zhuhai Open 2017, puts him in the top 6.6% of the 129,321 people who have ever been ranked in the event, and 782nd in China. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 27 competitions since January 2017, he has put 701 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 88% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 17.48 in January 2017 to 11.24, a 36% improvement. Youbin has entered 27 competitions, more competitions than 98% of everyone who has ever competed.

Pyraminx
best event — top 6.6% of 129,321 all-time
3.77
signature single · Zhuhai Open 2017
701
official solves on the record
11%
solve-to-solve spread · steadier than 88% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
Pyraminx3.777.96
top 6.6%782 / 10,224
5×51:02.761:10.82
top 7.0%332 / 2,816
4×436.7342.68
top 8.4%865 / 5,926
3×3 one-handed15.1821.57
top 8.5%808 / 5,922
6×61:54.732:06.10
top 9.0%195 / 1,349
7×72:58.423:11.39
top 10.2%204 / 1,261
2×22.685.11
top 10.7%1,634 / 15,796
3×311.2412.81
top 11.2%4,412 / 28,153
Square-115.7422.80
top 18.1%286 / 1,362
Skewb6.578.73
top 30.3%1,859 / 5,004
Clock16.2918.18
top 52.9%1,235 / 1,843

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

Shenzhen New Year 2017: 17.48ZUA Open 2017: 16.85Guangzhou SCUT 2017: 12.15Zhuhai Open 2017: 12.15Quanzhou Side Event 2017: 13.18Shantou Open 2017: 13.67Shenzhen Open 2017: 14.02GDSY Open 2018: 11.66Cross-strait Cubing Exchange 2018: 14.00Guangdong Open 2018: 12.66Shenzhen Open 2018: 14.30Shenzhen Nanshan 2018: 12.56Shenzhen 3x3 Days 2019: 12.86GDSY Open 2019: 11.30Dongguan Spring 2019: 12.32Lanzhou Spring 2019: 12.72Shenzhen Cubing 10th Anniversary 2019: 11.24Guangdong Open 2021: 11.40Shenzhen Youth Open 2023: 12.40Shenzhen Nanshan Open 2024: 13.45Shenzhen Open 2024: 15.0611.2417.481 Jan 20177 Dec 2024

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-3 Pyraminx single — 4,700 people have one; it is 0.77 away.
  • A sub-1:00 5×5 single — 2,252 people have one; it is 2.76 away.

Targets move as he improves.