Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → United States → Yi-Kuan Cheng (鄭以寬)

People · United States

Yi-Kuan Cheng (鄭以寬)

3×3 · top 18.8% of 284,439 all-time · competing since June 2018 · 2018CHEY13

Yi-Kuan Cheng (鄭以寬) has been competing for 8 years. His best event is the 3×3: a personal-best single of 13.39, set at Maru Cube Day 2019, puts him in the top 18.8% of the 284,439 people who have ever been ranked in the event, and 10,106th in the United States. Across 4 competitions since June 2018, he has put 102 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 16% around a typical one, an early reading from 5 counted rounds. His 3×3 best has come down from 24.78 in June 2018 to 13.39, a 46% improvement. He has entered four competitions, more competitions than 78% of everyone who has ever competed.

3×3
best event — top 18.8% of 284,439 all-time
13.39
signature single · Maru Cube Day 2019
102
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingUnited States
3×313.3915.70
top 18.8%10,106 / 59,724
Pyraminx6.3811.37
top 22.9%6,176 / 28,708
2×24.124.72
top 28.0%11,075 / 40,951
Skewb6.9510.16
top 33.3%5,576 / 18,907
4×457.231:12.34
top 33.4%5,333 / 19,072
3×3 one-handed25.6929.61
top 36.0%4,761 / 15,683
5×52:47.68
early days — 3 solves6,543 / 9,401
Megaminx3:12.75
top 78.6%6,176 / 7,841

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

Maru X 2018: 24.78Berkeley Summer 2018: 19.43SacCubing VI 2019: 14.58Maru Cube Day 2019: 13.3913.3924.7830 Jun 20186 Jul 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-12 3×3 single — 39,535 people have one; it is 1.39 away.
  • A sub-6 Pyraminx single — 25,870 people have one; it is 0.38 away.

Targets move as he improves.