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People · United States

Ivan ThanhDanh Duong

Clock · top 0.1% of 32,048 all-time · competing since October 2022 · 2022DUON09

Ivan ThanhDanh Duong has been competing for 4 years. His best event is the Clock: a personal-best single of 2.18, set at North Star Cubing Challenge MN 2026, puts him in the top 0.1% of the 32,048 people who have ever been ranked in the event, and 9th in the United States. Until August 2024, no official Clock solve in the world had been that fast. Across 26 competitions since October 2022, he has put 1,496 official solves on the record across 16 events. Solve to solve, his 3×3 times vary about 14% around a typical one; 69% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 13.03 in October 2022 to 6.42, a 51% improvement. Ivan has entered 26 competitions, more competitions than 98% of everyone who has ever competed.

Clock
best event — top 0.1% of 32,048 all-time
2.18
signature single · North Star Cubing Challenge MN 2026
1,496
official solves on the record
14%
solve-to-solve spread · wider than 69% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingUnited States
Clock2.182.57
top 0.1%9 / 8,927
3×36.427.48
top 0.79%505 / 59,724
Pyraminx1.823.07
top 0.86%245 / 28,708
4×425.8529.54
top 0.95%160 / 19,072
3×3 one-handed9.9714.63
top 1.0%163 / 15,683
Megaminx39.8743.53
top 1.6%107 / 7,841
Skewb2.133.95
top 1.7%248 / 18,907
5×551.7958.44
top 2.3%180 / 9,401
Square-17.6910.69
top 2.6%191 / 6,743
2×21.612.41
top 2.6%1,033 / 40,951
6×61:36.101:41.77
top 3.1%111 / 4,196
3×3 blindfolded42.311:54.25
top 7.5%146 / 2,092
7×72:53.903:00.07
top 8.9%243 / 3,184
3×3 Fewest Moves32 moves37.33
top 20.4%446 / 2,040
3×3 Multi-Blind6 of 6 cubes · 20:03—
top 29.4%219 / 731
4×4 blindfolded8:06.80—
early days — 1 solve181 / 440

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

Cubetcha 2022: 13.03SPAMtown Cubing 2023: 11.98Minnesota Cube Melt 2023: 9.57Minnesota Cube Day 2023: 8.05Cubetcha 2023: 8.83Side Events Minnesota 2023: 8.74North Star Cubing Challenge 2024: 9.19Minnesota Cube Melt 2024: 8.01Minnesota Warm Up 2024: 7.47Rubik's WCA North American Championship 2024: 9.05Rosemount Big Cubes 2024: 8.59Rosemount Side Events 2024: 8.73Minnesota Championship 2024: 8.11North Star Cubing Challenge MN 2025: 7.94Minnesota Cube Melt 2025: 6.62Minnesota Slice 2025: 6.66Rubik's WCA World Championship 2025: 7.56CubingUSA Heartland Championship 2025: 7.52Minnesota Championship 2025: 6.77Race the Clock MN 2025: 6.42North Star Cubing Challenge MN 2026: 6.66Minnesota Cube Melt 2026: 6.706.4213.038 Oct 20229 May 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-2 Clock single — 17 people have one; it is 0.18 away.
  • A sub-6 3×3 single — 1,376 people have one; it is 0.42 away.

Targets move as he improves.