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The Middle Three
People → Hong Kong, China → Chan Chun Hei (陳俊熙)

People · Hong Kong, China

Chan Chun Hei (陳俊熙)

7×7 · top 3.2% of 14,450 all-time · competing since August 2017 · 2017CHEJ06

Chan Chun Hei (陳俊熙) has been competing for 9 years. His best event is the 7×7: a personal-best single of 2:26.30, set at Guangzhou Big Cubes 2025, puts him in the top 3.2% of the 14,450 people who have ever been ranked in the event, and 9th in Hong Kong, China. Until July 2015, no official 7×7 solve in the world had been that fast. Across 25 competitions since August 2017, he has put 494 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 14% around a typical one; 66% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 4×4 best has come down from 1:42.14 in January 2019 to 32.69, a 68% improvement. Chan has entered 25 competitions, more competitions than 98% of everyone who has ever competed.

7×7
best event — top 3.2% of 14,450 all-time
2:26.30
signature single · Guangzhou Big Cubes 2025
494
official solves on the record
14%
solve-to-solve spread · wider than 66% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingHong Kong, China
7×72:26.302:34.34
top 3.2%9 / 74
5×554.9259.00
top 3.4%17 / 196
6×61:38.071:45.42
top 3.6%12 / 90
3×38.4610.42
top 3.7%118 / 1,424
4×432.6935.67
top 4.8%50 / 447
2×22.424.64
top 8.2%111 / 880
Pyraminx5.409.98
top 15.8%101 / 448
Skewb5.468.91
top 21.7%95 / 293
3×3 Fewest Moves46 moves—
early days — 2 solves61 / 77

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

Jieyang Winter 2019: 1:42.14Hong Kong Cube Day 2023: 39.19Rubik's WCA World Championship 2023: 36.57Hong Kong Championship 2023: 36.82Shenzhen Open 2023: 37.88Welcome Back Hong Kong 2024: 39.65Shenzhen Nanshan Open 2024: 32.93Xi'an Open 2024: 38.07Hong Kong Cube Day 2024: 32.96Rubik's WCA Asian Championship 2024: 37.27Cool Down Singapore 2024: 38.43Hong Kong Championship 2024: 33.86Xi'an Cherry Blossom 2025: 36.00Hong Kong Championship 2025: 33.61Guangzhou Big Cubes 2025: 32.69Guangzhou Big Cubes 2026: 34.24Singapore Polytechnic September Showdown 2026: 34.5432.691:42.1427 Jan 201919 Sep 2026

Best single per competition, 4×4. 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-2:00 7×7 single — 86 people have one; it is 26.30 away.
  • A sub-50 5×5 single — 733 people have one; it is 4.92 away.

Targets move as he improves.