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The Middle Three
People → Hong Kong, China → Burno Li Chak Kwan (李澤堃)

People · Hong Kong, China

Burno Li Chak Kwan (李澤堃)

4×4 · top 0.027% of 83,917 all-time · competing since August 2017 · 2017KWAN05

Burno Li Chak Kwan (李澤堃) has been competing for 9 years. His best event is the 4×4: a personal-best single of 18.93, set at Rubik's WCA World Championship 2025, puts him in the top 0.027% of the 83,917 people who have ever been ranked in the event, and 1st in Hong Kong, China. Until April 2018, no official 4×4 solve in the world had been that fast. Across 72 competitions since August 2017, he has put 3,485 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 72% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 9.92 in August 2017 to 4.60, a 54% improvement. Burno has entered 72 competitions, more competitions than 99% of everyone who has ever competed.

4×4
best event — top 0.027% of 83,917 all-time
18.93
signature single · Rubik's WCA World Championship 2025
3,485
official solves on the record
12%
solve-to-solve spread · steadier than 72% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingHong Kong, China
4×418.9323.58
top 0.027%1 / 423
3×34.606.49
top 0.056%1 / 1,347
5×538.6941.87
top 0.091%2 / 192
Megaminx28.5732.82
top 0.13%1 / 154
6×61:13.131:21.39
top 0.22%2 / 87
7×71:59.392:09.57
top 0.53%3 / 74
Pyraminx1.682.79
top 0.65%5 / 431
Square-15.798.29
top 0.65%3 / 126
2×21.102.09
top 0.77%9 / 855
3×3 one-handed9.8612.42
top 0.96%8 / 361
Skewb2.193.59
top 1.9%12 / 285
3×3 Fewest Moves23 moves35.00
top 3.0%9 / 76
Clock5.325.93
top 5.3%21 / 156

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

Hong Kong Open 2017: 9.92Cross-strait Cubing Exchange 2018: 8.69Shenzhen Open 2018: 7.70Hong Kong Cube Day 2019: 7.44Shenzhen Cubing 10th Anniversary 2019: 7.73Shenzhen Open 2019: 7.85Ajax NxNxN 2022: 6.69Oakville Fall B 2022: 6.36Appleby Winter B 2023: 5.45Waterloo Favourites A 2023: 6.92London Winter A 2023: 6.27Pickering C 2023: 6.19Open de Gatineau B 2023: 6.14Newmarket Favourites 2023: 6.75Markham 3x3x3 Afternoon 2023: 6.28National Capital Region A 2023: 5.04Guelph 2023: 6.85Open de Montréal 2023: 5.92Southern Ontario Summer - Newmarket 2023: 6.05Canadian Championship 2023: 4.60Rubik's WCA World Championship 2023: 6.30Rubik's x Speedcubing Canada All-Stars 2023: 6.35Ajax 3x3x3 Evening 2023: 6.37Appleby Fall B 2023: 6.58Pickering Favourites Fall 2023: 6.64Pickering Fall A 2023: 5.60Scarborough Fall A 2023: 5.33Défi Jeunesse Montréal 2023: 5.64Pickering Favourites Autumn 2023: 5.90Greater Toronto 2024: 5.60Ajax 3x3x3 Newcomers B 2024: 5.69Thornhill Spring 2024: 5.87Battle of Waterloo 2024: 6.16Ontario Championship 2024: 6.12Pickering Mini Afternoon 2024: 6.01Championnat Québécois 2024: 6.39Kitchener Mini Morning 2024: 6.58Pickering Favourites Autumn 2024: 5.68Wrap It Up Barrie 2024: 5.99Waterloo Winter 2025: 5.87Greater Toronto 2025: 5.31Mississauga Newcomers B 2025: 5.52Pickering Favourites Spring 2025: 5.01Pickering NxNxN Summer 2025: 6.30Rubik's WCA World Championship 2025: 5.55Championnat Canadien 2025: 5.83Washtenaw Slow Fall 2025: 4.90Pickering Favourites Fall 2025: 6.18Kawartha Fall 2025: 6.33Turning in Corning 2025: 5.97Elmira Miracle 2025: 7.12Pickering NxNxN Winter 2026: 5.71Dockin and Clockin Dunkirk 2026: 6.58Pickering Mini Afternoon 2026: 5.15Cube Against Cancer Dunkirk 2026: 5.81Championnat Québécois 2026: 5.38Waterloo Spring 2026: 6.09Rubik's WCA European Championship 2026: 5.77Brampton Summer 2026: 6.194.609.9226 Aug 201729 Aug 2026

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-4 3×3 single — 38 people have one; it is 0.60 away.
  • A sub-30 5×5 single — 1 people have one; it is 8.69 away.

Targets move as he improves.