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People → Singapore → Isaac Wong Chang Man

People · Singapore

Isaac Wong Chang Man

4×4 · top 0.17% of 83,917 all-time · competing since February 2015 · 2015MANI01

Isaac Wong Chang Man has been competing for 12 years. His best event is the 4×4: a personal-best single of 21.81, set at Singapore Max 2024, puts him in the top 0.17% of the 83,917 people who have ever been ranked in the event, and 3rd in Singapore. Until October 2015, no official 4×4 solve in the world had been that fast. Across 30 competitions since February 2015, he has put 1,206 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 74% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 9.36 in February 2016 to 5.72, a 39% improvement. Isaac has entered 30 competitions, more competitions than 98% of everyone who has ever competed.

4×4
best event — top 0.17% of 83,917 all-time
21.81
signature single · Singapore Max 2024
1,206
official solves on the record
12%
solve-to-solve spread · steadier than 74% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingSingapore
4×421.8126.54
top 0.17%3 / 462
3×35.726.94
top 0.34%12 / 1,546
3×3 one-handed8.8411.33
top 0.44%6 / 460
2×21.071.99
top 0.7%14 / 1,053
5×546.4148.70
top 0.9%11 / 251
6×61:34.791:40.09
top 2.8%17 / 125
7×72:45.893:07.58
top 6.8%19 / 96
Square-112.9519.03
top 11.8%29 / 132
Megaminx1:09.651:20.18
top 15.4%57 / 195
3×3 Fewest Moves33 moves—
early days — 2 solves28 / 94
Skewb6.389.59
top 28.7%138 / 353

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

Singapore Rubik's Cube Competition 2016: 9.36Singapore Cubewerkz Open 2016: 8.00Singapore Rubik's Cube Competition 2017: 7.77Malaysia Cube Open 2017: 6.87Johor Cube Open 2018: 7.57Singapore Cube Championship 2018: 6.72Singapore Cube Championship 2019: 7.83NTU Open 2019: 7.68Singapore MentalMatrix Open 2019: 7.24Singapore Mini 2019: 7.45Singapore Mofun & FIS Cubing 2022: 6.76Singapore Mini 2022: 6.11NTU Welcome 2023: 7.75Singapore Championship 2023: 5.98UTM Speedcubing Open 2023: 6.40Singapore AMK CC Cubing B 2023: 6.43Mofunland Cruise Open 2023: 5.72NTU Speedcubing 2023: 6.65Singapore Mini 2023: 6.09Singapore Marine Parade Speedcubing 2023: 6.75MYHM Singapore Championship 2024: 6.35Singapore Newcomers 2024: 6.76Singapore 50 and Counting 2024: 6.315.729.3620 Feb 20168 Jun 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-20 4×4 single — 42 people have one; it is 1.81 away.
  • A sub-5 3×3 single — 344 people have one; it is 0.72 away.

Targets move as he improves.