Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → China → Charles Zhu (朱彦臣)

People · China

Charles Zhu (朱彦臣)

Skewb · top 0.27% of 73,281 all-time · competing since August 2017 · 2017ZHUY07

Charles Zhu (朱彦臣) has been competing for 9 years. His best event is the Skewb: a personal-best single of 1.35, set at Beijing Autumn Begins 2026, puts him in the top 0.27% of the 73,281 people who have ever been ranked in the event, and 19th in China. Until October 2015, no official Skewb solve in the world had been that fast. Across 59 competitions since August 2017, he has put 161 official solves on the record across seven events. His Skewb best has come down from 1.69 in September 2022 to 1.35, a 20% improvement. Charles has entered 59 competitions, more competitions than 99% of everyone who has ever competed.

Skewb
best event — top 0.27% of 73,281 all-time
1.35
signature single · Beijing Autumn Begins 2026
161
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
Skewb1.352.09
top 0.27%19 / 5,004
2×21.181.57
top 0.98%108 / 15,796
Pyraminx3.204.46
top 4.3%525 / 10,224
3×310.9312.11
top 10.3%4,011 / 28,153
4×441.9750.75
top 14.5%1,571 / 5,926
Clock8.8110.20
top 19.0%420 / 1,843
3×3 one-handed19.4824.08
top 19.1%1,917 / 5,922

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

Nanaimo Back to School 2022: 1.69Nanaimo Swing into Spring 2023: 2.26Cubing on Par B 2023: 1.88Winnipeg Open 2023: 1.74Canadian Championship 2023: 1.68Rubik's WCA World Championship 2023: 2.18Xi'an Summer 2026: 1.86Beijing Autumn Begins 2026: 1.351.352.2617 Sep 202222 Aug 2026

Best single per competition, Skewb. 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-1 Skewb single — 35 people have one; it is 0.35 away.
  • A sub-1 2×2 single — 1,032 people have one; it is 0.18 away.

Targets move as he improves.