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The Middle Three
People → Macau, China → Max Kwok U Sam (郭愉琛)

People · Macau, China

Max Kwok U Sam (郭愉琛)

5×5 · top 0.37% of 40,792 all-time · competing since September 2018 · 2018SAMK01

Max Kwok U Sam (郭愉琛) has been competing for 8 years. His best event is the 5×5: a personal-best single of 42.52, set at Malmö Cubing Open 2026, puts him in the top 0.37% of the 40,792 people who have ever been ranked in the event, and 1st in Macau, China. Until November 2016, no official 5×5 solve in the world had been that fast. Across 101 competitions since September 2018, he has put 5,950 official solves on the record across 17 events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 59% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 17.51 in September 2018 to 6.26, a 64% improvement. Max has entered 101 competitions, more competitions than 99% of everyone who has ever competed.

5×5
best event — top 0.37% of 40,792 all-time
42.52
signature single · Malmö Cubing Open 2026
5,950
official solves on the record
13%
solve-to-solve spread · steadier than 59% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingMacau, China
5×542.5247.81
top 0.37%1 / 8
3×3 one-handed8.8513.53
top 0.45%1 / 12
2×21.022.40
top 0.59%2 / 33
4×424.6129.69
top 0.61%1 / 16
3×36.267.78
top 0.65%1 / 52
7×72:03.392:10.94
top 0.81%1 / 5
Pyraminx1.822.99
top 0.86%1 / 10
6×61:24.481:33.96
top 1.1%1 / 6
Skewb2.745.38
top 3.8%3 / 10
Megaminx47.3351.91
top 4.0%2 / 5
Clock4.836.19
top 4.0%2 / 6
3×3 blindfolded45.351:15.04
top 8.4%1 / 5
Square-111.1914.57
top 8.4%2 / 6
3×3 Multi-Blind11 of 11 cubes · 45:25—
top 13.7%1 / 3
3×3 Fewest Moves30 moves35.00
top 14.8%2 / 5
4×4 blindfolded6:22.028:05.87
top 32.4%1 / 2
5×5 blindfolded17:24.00—
early days — 2 solves2 / 2

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

Zhongshan NxN Speedcubing 2018: 17.51Glasgow Open 2022: 11.07Stevenage Autumn A 2022: 8.05Kewbz UK Championship 2022: 9.02Belfast Winter 2023: 9.51Glasgow Winter 2023: 7.98Guildford Winter 2023: 8.10Lincolnshire Winter 2023: 7.70Edinburgh Spring 2023: 8.20Wakefield Spring 2023: 9.09Essex Spring 2023: 8.38Reading Spring 2023: 8.12Weston-super-Mare Spring 2023: 8.56Stevenage May 2023: 10.04Glasgow Spring 2023: 8.08Peterborough Summer 2023: 8.16Wiltshire Summer 2023: 7.57Wiltshire Autumn 2023: 7.37Glasgow Autumn 2023: 7.11Rubik's UK Championship 2023: 7.97Aberdeen Autumn 2023: 8.19Liverpool Winter 2023: 7.32Stevenage January 2024: 8.25Bristol Winter 2024: 6.26Edinburgh Winter 2024: 7.37Wiltshire February 2024: 8.18Stevenage February 2024: 7.61Glasgow Spring 2024: 8.25Wiltshire March 2024: 7.86Manchester Spring 2024: 7.61Bolton Spring 2024: 7.62UCD Cube Days 2024: 8.40Weston-super-Mare Spring 2024: 8.31Newcastle Tyneside Spring 2024: 8.53Belfast Summer 2024: 8.44Oslo Open 2024: 7.47Lincolnshire Summer 2024: 7.90Stevenage August 2024: 8.37Birmingham Summer 2024: 7.35Kewbz UK Open 2024: 7.48Leicestershire Autumn 2024: 6.28Glasgow 3x3 Evening 2024: 7.49Rubik's UK Championship 2024: 7.80Weston-super-Mare Autumn 2024: 7.20Hanoi Winter 2024: 6.98Edinburgh Winter 2025: 6.81Hvidovre NxN 2025: 7.88Svalbard 2025: 7.63Crewe Winter 2025: 8.21NxN Rīgā 2025: 8.11Leeds Spring 2025: 8.25Glasgow 3x3 Evening March 2025: 7.13Birmingham Spring 2025: 7.34Manchester Spring 2025: 8.21Kewbz Scottish Championship 2025: 6.97North Highlands Summer 2025: 6.74Damásio Open 2025: 7.47Bristol June 2025: 7.14Rubik's WCA World Championship 2025: 9.06Rubik's UK Championship 2025: 7.31Bristol August 2025: 8.44Weston-super-Mare Autumn 2025: 7.16Edinburgh Autumn 2025: 7.58Stevenage 10th Anniversary 2025: 6.82Belfast Autumn 2025: 8.08Glasgow Autumn Open 2025: 6.59Portugal Championship 2025: 7.38Wiltshire Winter 2025: 6.87Edinburgh Winter 2026: 6.80Falkirk Open 2026: 8.08Malmö Cubing Open 2026: 7.87Rubik's WCA European Championship 2026: 7.16Bristol August 2026: 6.76Kewbz UK Championship 2026: 7.566.2617.519 Sep 201828 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-40 5×5 single — 68 people have one; it is 2.52 away.
  • A sub-8 3×3 one-handed single — 151 people have one; it is 0.85 away.

Targets move as he improves.