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The Middle Three
People → China → Haochen Dong (董昊辰)

People · China

Haochen Dong (董昊辰)

4×4 · top 6.6% of 85,040 all-time · competing since January 2020 · 2020DONG01

Haochen Dong (董昊辰) has been competing for 7 years. His best event is the 4×4: a personal-best single of 34.81, set at Xi'an Summer 2026, puts him in the top 6.6% of the 85,040 people who have ever been ranked in the event, and 681st in China. Until October 2010, no official 4×4 solve in the world had been that fast. Across 2 competitions since January 2020, he has put 38 official solves on the record across four events. Haochen has entered two competitions.

4×4
best event — top 6.6% of 85,040 all-time
34.81
signature single · Xi'an Summer 2026
38
official solves on the record

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
4×434.8141.79
top 6.6%681 / 5,999
2×23.634.65
top 21.9%3,643 / 15,939
3×315.2017.50
top 25.2%9,631 / 28,499
Pyraminx7.027.77
top 28.1%3,170 / 10,269

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

Ordos Winter 2020: 7.54Xi'an Summer 2026: 7.027.027.5411 Jan 202019 Jul 2026

Best single per competition, Pyraminx. 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-30 4×4 single — 2,465 people have one; it is 4.81 away.
  • A sub-3 2×2 single — 27,049 people have one; it is 0.63 away.

Targets move as he improves.