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The Middle Three
People → China → Bo Chou (周勃)

People · China

Bo Chou (周勃)

4×4 · top 14.3% of 83,917 all-time · competing since December 2013 · 2013CHOU08

Bo Chou (周勃) has been competing for 13 years. His best event is the 4×4: a personal-best single of 41.86, set at Shenyang Open 2018, puts him in the top 14.3% of the 83,917 people who have ever been ranked in the event, and 1,545th in China. Across 10 competitions since December 2013, he has put 284 official solves on the record across ten events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 86% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 18.58 in December 2013 to 13.04, a 30% improvement. Bo has entered ten competitions, more competitions than 92% of everyone who has ever competed.

4×4
best event — top 14.3% of 83,917 all-time
41.86
signature single · Shenyang Open 2018
284
official solves on the record
11%
solve-to-solve spread · steadier than 86% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
4×441.8648.34
top 14.3%1,545 / 5,926
3×313.0414.55
top 17.6%6,872 / 28,153
7×73:36.853:43.73
top 22.2%445 / 1,261
Pyraminx6.629.47
top 24.8%2,809 / 10,224
2×24.505.53
top 32.9%5,640 / 15,796
5×51:39.451:43.00
top 34.9%1,575 / 2,816
6×62:54.823:08.69
top 38.4%779 / 1,349
3×3 one-handed29.3134.56
top 45.1%4,023 / 5,922
Skewb10.0216.15
top 55.1%3,055 / 5,004
Megaminx2:23.27
top 58.1%1,426 / 1,678

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

Shenyang Open 2013: 18.58Shenyang Open 2014: 20.45Shenyang Open 2016: 16.00Shenyang Winter 2016: 15.52Dalian Winter 2017: 14.22Fushun Open 2018: 13.43Beijing Open 2018: 13.61Shenyang Open 2018: 13.04Shenyang Summer 2018: 14.18NEU Open 2019: 13.9113.0420.4529 Dec 201315 Dec 2019

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-40 4×4 single — 10,180 people have one; it is 1.86 away.
  • A sub-12 3×3 single — 39,535 people have one; it is 1.04 away.

Targets move as he improves.