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The Middle Three
People → Malaysia → Chu Kei Yuen

People · Malaysia

Chu Kei Yuen

3×3 · top 4.0% of 284,439 all-time · competing since October 2016 · 2016YUEN01

Chu Kei Yuen has been competing for 10 years. His best event is the 3×3: a personal-best single of 8.60, set at UTP Cube Open 2024, puts him in the top 4.0% of the 284,439 people who have ever been ranked in the event, and 203rd in Malaysia. Until July 2008, no official 3×3 solve in the world had been that fast. Across 27 competitions since October 2016, he has put 912 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 13% around a typical one; 54% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 22.02 in October 2016 to 8.60, a 61% improvement. Chu has entered 27 competitions, more competitions than 98% of everyone who has ever competed.

3×3
best event — top 4.0% of 284,439 all-time
8.60
signature single · UTP Cube Open 2024
912
official solves on the record
13%
solve-to-solve spread · wider than 54% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingMalaysia
3×38.6010.65
top 4.0%203 / 3,773
3×3 one-handed13.1216.96
top 4.6%60 / 1,327
4×433.5349.30
top 5.4%87 / 1,219
2×22.614.11
top 10.0%250 / 2,541
Skewb4.396.19
top 13.7%149 / 1,053
Pyraminx5.227.14
top 14.6%289 / 1,723
Megaminx1:42.811:51.38
top 36.3%238 / 518
Clock12.5315.32
top 37.5%169 / 406
5×52:43.892:58.25
top 72.1%502 / 617
3×3 blindfolded4:58.72—
early days — 3 solves130 / 169
Square-11:50.06—
early days — 2 solves358 / 364

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

INTI IU Open 2016: 22.02Malaysia Cube Open 2016: 17.29Singapore Rubik's Cube Competition 2017: 14.53Putra Speedcubing Challenge 2017: 16.33Foon Yew Open 2017: 14.28MYCA Cube Day 2017: 13.85Malaysia Cube Open 2017: 14.50Malaysian Cube Championship 2017: 10.46Putra Speedcubing Challenge 2018: 12.76Unikl MFI Open 2018: 12.63Putra Speedcubing Challenge 2019: 11.11Malaysia 10th Anniversary Cube Open 2019: 9.68Malaysia Cube Championship 2019: 10.84Selangor Cube Open 2019: 10.60YJ Malaysia Cube Open 2022: 11.95Beaconhouse Malaysia Cube Open 2022: 10.03Yong Jun KL Speedcubing 2023: 9.77Selangor Ace Cube 2023: 8.86XMUM Cube Open 2023: 9.47IUKL SOR 2023: 9.98Beaconhouse Malaysia Cube Open 2023: 10.57UoSM Cube Open 2024: 9.54USM Penang Cube 2024: 9.53Sunway Velocity Mall Open 2024: 9.76Malaysia 15th Anniversary Championship 2024: 9.43UTP Cube Open 2024: 8.60Bristol Winter Open 2024: 8.888.6022.021 Oct 201614 Dec 2024

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-8 3×3 single — 7,931 people have one; it is 0.60 away.
  • A sub-12 3×3 one-handed single — 2,187 people have one; it is 1.12 away.

Targets move as he improves.