People · Czech Republic
David Duong
Skewb · top 11.0% of 74,164 all-time · competing since February 2023 · 2023DUON02
David Duong has been competing for 4 years. His best event is the Skewb: a personal-best single of 4.01, set at Czech Championship 2026, puts him in the top 11.0% of the 74,164 people who have ever been ranked in the event, and 64th in the Czech Republic. Across 2 competitions since February 2023, he has put 47 official solves on the record across eight events. His 2×2 best has come down from 4.06 in February 2023 to 3.24, a 20% improvement. David has entered two competitions.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Czech Republic | |
|---|---|---|---|---|---|
| Skewb | 4.01 | 10.24 | top 11.0% | 64 / 328 | |
| Pyraminx | 4.82 | 11.57 | top 12.1% | 123 / 469 | |
| 2×2 | 3.24 | 4.64 | top 17.1% | 201 / 652 | |
| 3×3 | 14.71 | 16.70 | top 23.5% | 335 / 801 | |
| 3×3 one-handed | 29.34 | 40.89 | top 45.2% | 152 / 317 | |
| Megaminx | 2:36.99 | — | early days — 1 solve | 129 / 181 | |
| 4×4 | 1:37.97 | — | early days — 1 solve | 346 / 446 | |
| Square-1 | 1:33.89 | — | early days — 2 solves | 169 / 172 |
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, 2×2. Faster is higher — the axis is the right way up.
The story so far
- 26 Sep 2026First sub-20 3×3: 14.71 at Czech Championship 2026.
- 26 Sep 2026First sub-15 3×3: 14.71 at Czech Championship 2026.
- 11 Feb 2023First competition: Kostelec Nonstop Cubing 2023. A 20.54 3×3 single to start from.
Competitions
- Czech Championship 2026 · 26 Sep 2026 — 2 personal bests set
- Kostelec Nonstop Cubing 2023 · 11 Feb 2023
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.
- Jáchym Střelec — met in 13 rounds, finished ahead twice
- Adam Hlavín — met in 13 rounds, finished ahead once
- Vojtěch Grohmann — met in 13 rounds, finished ahead once
Next targets
- A sub-4 Skewb single — 8,121 people have one; it is 0.01 away.
- A sub-4 Pyraminx single — 10,050 people have one; it is 0.82 away.
Targets move as he improves.