People · Vietnam
Duc Do
Pyraminx · top 6.8% of 130,891 all-time · competing since August 2025 · 2025DODU01
Duc Do has been competing for a year. His best event is the Pyraminx: a personal-best single of 3.82, set at CubingUSA New England Championship 2026, puts him in the top 6.8% of the 130,891 people who have ever been ranked in the event, and 63rd in Vietnam. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 4 competitions since August 2025, he has put 183 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 13% around a typical one, an early reading from 8 counted rounds. His 3×3 best has come down from 19.81 in August 2025 to 10.16, a 49% improvement. Duc has entered four competitions, more competitions than 78% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Vietnam | |
|---|---|---|---|---|---|
| Pyraminx | 3.82 | 5.90 | top 6.8% | 63 / 752 | |
| 3×3 | 10.16 | 12.23 | top 8.0% | 500 / 2,920 | |
| 2×2 | 2.58 | 3.84 | top 9.8% | 173 / 1,718 | |
| Skewb | 6.17 | 8.79 | top 27.2% | 165 / 534 | |
| 3×3 one-handed | 25.42 | 28.33 | top 35.4% | 502 / 945 | |
| 4×4 | 1:12.35 | 1:15.02 | top 49.2% | 729 / 1,071 | |
| Square-1 | 30.47 | — | top 50.3% | 103 / 163 | |
| Clock | 16.13 | 20.07 | top 52.4% | 123 / 204 | |
| Megaminx | 2:20.28 | — | top 56.7% | 179 / 253 |
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
Best single per competition, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 16 Oct 2026First sub-15 3×3: 11.94 at CubingUSA New England Championship 2026.
- 16 Oct 2026Nine personal bests in one day at CubingUSA New England Championship 2026.
- 22 Nov 2025Seven personal bests in one day at New Hampshire Championship 2025.
- 1 Aug 2025First competition: CubingUSA New England Championship 2025. A 19.81 3×3 single to start from.
Competitions
- CubingUSA New England Championship 2026 · 16 Oct 2026 — 9 personal bests set
- The Battle of Concord MA 2026 · 8 Feb 2026
- New Hampshire Championship 2025 · 22 Nov 2025 — 7 personal bests set
- CubingUSA New England Championship 2025 · 1 Aug 2025 — 2 personal bests set
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.
- Derek White — met in 42 rounds, finished ahead twice
- Julian Kim — met in 41 rounds, finished ahead 4 times
- David Andron-Silva — met in 40 rounds, never finished ahead
Next targets
- A sub-3 Pyraminx single — 4,783 people have one; it is 0.82 away.
- A sub-10 3×3 single — 21,606 people have one; it is 0.16 away.
Targets move as he improves.