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The Middle Three
People → China → Chengcheng Lu (鲁成成)

People · China

Chengcheng Lu (鲁成成)

2×2 · top 25.7% of 189,179 all-time · competing since March 2017 · 2017LUCH02

Chengcheng Lu (鲁成成) has been competing for 10 years. His best event is the 2×2: a personal-best single of 3.93, set at Beijing Winter 2019, puts him in the top 25.7% of the 189,179 people who have ever been ranked in the event, and 4,378th in China. Across 4 competitions since March 2017, he has put 49 official solves on the record across four events. His 2×2 best has come down from 9.12 in March 2017 to 3.93, a 57% improvement. Chengcheng has entered four competitions, more competitions than 78% of everyone who has ever competed.

2×2
best event — top 25.7% of 189,179 all-time
3.93
signature single · Beijing Winter 2019
49
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
2×23.935.65
top 25.7%4,378 / 15,939
Square-127.1843.91
top 44.0%763 / 1,373
3×329.2435.96
top 61.3%18,950 / 28,499
Pyraminx12.7821.58
top 71.8%7,237 / 10,269

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

Wuhan Chuyun Spring 2017: 9.12WHUT Open 2018: 6.31Wuhan Chuyun Spring 2019: 6.92Beijing Winter 2019: 3.933.939.1219 Mar 20177 Dec 2019

Best single per competition, 2×2. 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 2×2 single — 27,049 people have one; it is 0.93 away.
  • A sub-25 Square-1 single — 10,071 people have one; it is 2.18 away.

Targets move as he improves.