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The Middle Three
People → China → Xin Zheng (郑昕)

People · China

Xin Zheng (郑昕)

Pyraminx · top 9.8% of 129,321 all-time · competing since July 2011 · 2011ZHEN07

Xin Zheng (郑昕) has been competing for 15 years. His best event is the Pyraminx: a personal-best single of 4.41, set at Hefei Summer 2012, puts him in the top 9.8% of the 129,321 people who have ever been ranked in the event, and 1,151st in China. Until September 2006, no official Pyraminx solve in the world had been that fast. Across 8 competitions since July 2011, he has put 286 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 14% around a typical one; 69% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 16.83 in July 2011 to 11.15, a 34% improvement. Xin has entered eight competitions, more competitions than 90% of everyone who has ever competed.

Pyraminx
best event — top 9.8% of 129,321 all-time
4.41
signature single · Hefei Summer 2012
286
official solves on the record
14%
solve-to-solve spread · wider than 69% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
Pyraminx4.419.98
top 9.8%1,151 / 10,224
3×311.1515.04
top 10.9%4,284 / 28,153
2×22.844.74
top 12.4%1,941 / 15,796
4×447.8051.81
top 21.9%2,357 / 5,926
5×51:36.891:44.67
top 33.0%1,491 / 2,816
Megaminx1:47.562:18.60
top 39.0%1,127 / 1,678
3×3 one-handed27.2736.39
top 40.0%3,696 / 5,922
6×63:50.234:14.27
top 62.3%1,106 / 1,349
3×3 blindfolded4:09.78
early days — 2 solves965 / 1,183
7×76:14.55
early days — 1 solve1,104 / 1,261
Skewb13.3315.64
top 72.1%3,767 / 5,004
Square-150.911:18.62
top 76.9%1,217 / 1,362
3×3 Multi-Blind1 of 2 cubes · 9:50
early days — 1 solve254 / 278

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

Shandong Open 2011: 16.83Shanghai Summer 2012: 18.40Qingdao Open 2012: 14.43Hefei Summer 2012: 14.15Hefei Open 2013: 13.61Beijing Summer 2013: 11.30Shenyang Summer 2018: 11.1511.1518.4031 Jul 20115 Aug 2018

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-4 Pyraminx single — 9,892 people have one; it is 0.41 away.
  • A sub-10 3×3 single — 21,172 people have one; it is 1.15 away.

Targets move as he improves.