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The Middle Three
People → China → Kaiyuan Chu (初楷源)

People · China

Kaiyuan Chu (初楷源)

2×2 · top 40.8% of 186,767 all-time · competing since May 2018 · 2018CHUK02

Kaiyuan Chu (初楷源) has been competing for 8 years. His best event is the 2×2: a personal-best single of 5.12, set at Zibo Open 2019, puts him in the top 40.8% of the 186,767 people who have ever been ranked in the event, and 7,070th in China. Across 6 competitions since May 2018, he has put 70 official solves on the record across three events. Solve to solve, his 3×3 times vary about 18% around a typical one, an early reading from 6 counted rounds. His 2×2 best has come down from 8.14 in May 2018 to 5.12, a 37% improvement. Kaiyuan has entered six competitions, more competitions than 86% of everyone who has ever competed.

2×2
best event — top 40.8% of 186,767 all-time
5.12
signature single · Zibo Open 2019
70
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
2×25.127.96
top 40.8%7,070 / 15,796
3×331.1942.24
top 64.6%19,420 / 28,153
Pyraminx11.6514.45
top 65.0%6,582 / 10,224

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

Weihai Open 2018: 8.14Shijiazhuang Open 2018: 9.88China Championship 2018: 7.33Zibo Open 2018: 7.24Shandong Open 2019: 7.23Zibo Open 2019: 5.125.129.8812 May 201817 Nov 2019

Best single per competition, 2×2. Faster is higher — the axis is the right way up.

The story so far

  • 12 May 2018First competition: Weihai Open 2018. A 31.19 3×3 single to start from.

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-5 2×2 single — 73,413 people have one; it is 0.12 away.
  • A sub-30 3×3 single — 177,856 people have one; it is 1.19 away.

Targets move as he improves.