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The Middle Three
People → Vietnam → Bùi Hải Long

People · Vietnam

Bùi Hải Long

Megaminx · top 3.6% of 34,786 all-time · competing since January 2020 · 2020LONG01

Bùi Hải Long has been competing for 7 years. His best event is the Megaminx: a personal-best single of 46.37, set at Hanoi Summer 2025, puts him in the top 3.6% of the 34,786 people who have ever been ranked in the event, and 15th in Vietnam. Until April 2011, no official Megaminx solve in the world had been that fast. Across 13 competitions since January 2020, he has put 431 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 11% around a typical one, an early reading from 9 counted rounds. His 4×4 best has come down from 1:16.53 in January 2020 to 31.70, a 59% improvement. He has entered 13 competitions, more competitions than 94% of everyone who has ever competed.

Megaminx
best event — top 3.6% of 34,786 all-time
46.37
signature single · Hanoi Summer 2025
431
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingVietnam
Megaminx46.3750.61
top 3.6%15 / 249
4×431.7034.34
top 3.9%69 / 1,065
5×557.391:04.50
top 4.3%33 / 539
Square-18.8611.16
top 4.3%9 / 161
3×39.2510.69
top 5.5%347 / 2,913
7×72:43.412:50.43
top 6.3%15 / 137
6×61:51.151:57.51
top 7.6%21 / 179
Pyraminx5.067.47
top 13.5%106 / 750
3×3 Fewest Moves30 moves40.00
top 14.8%8 / 63
Clock8.619.72
top 18.0%54 / 201
2×23.394.06
top 18.9%399 / 1,714
3×3 one-handed20.7523.19
top 22.6%336 / 943
Skewb10.0813.60
top 55.4%329 / 533

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

Ha Noi Cube Day 2020: 1:16.53Hanoi Summer 2023: 33.65NxN in Hanoi 2024: 33.77Aeon Mall Long Bien 2024: 36.48Vietnam Championship 2024: 36.44Hanoi Winter 2024: 31.70NxN in Hanoi 2025: 32.66Hanoi Summer 2025: 32.20MYHM HaNxNoi 2026: 31.8431.701:16.535 Jan 202021 Mar 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-40 Megaminx single — 557 people have one; it is 6.37 away.
  • A sub-30 4×4 single — 2,388 people have one; it is 1.70 away.

Targets move as he improves.