People · United States
David Ju
3×3 · top 6.0% of 288,433 all-time · competing since November 2015 · 2015JUDA01
David Ju has been competing for 11 years. His best event is the 3×3: a personal-best single of 9.45, set at Cubing Peoria 2020, puts him in the top 6.0% of the 288,433 people who have ever been ranked in the event, and 3,377th in the United States. Until February 2008, no official 3×3 solve in the world had been that fast. Across 9 competitions since November 2015, he has put 260 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 62% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 19.41 in November 2015 to 9.45, a 51% improvement. David has entered nine competitions, more competitions than 91% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | United States | |
|---|---|---|---|---|---|
| 3×3 | 9.45 | 11.02 | top 6.0% | 3,377 / 60,666 | |
| 2×2 | 2.45 | 3.17 | top 8.5% | 3,379 / 41,674 | |
| Skewb | 3.96 | 7.46 | top 10.7% | 1,665 / 19,164 | |
| Pyraminx | 5.11 | 6.32 | top 13.9% | 3,693 / 29,168 | |
| 4×4 | 50.48 | 54.55 | top 25.4% | 3,950 / 19,354 | |
| Square-1 | 21.66 | 26.85 | top 31.8% | 2,081 / 6,846 | |
| 5×5 | 1:46.42 | 1:56.96 | top 40.3% | 3,299 / 9,537 | |
| 3×3 blindfolded | 5:05.34 | — | early days — 1 solve | 1,692 / 2,128 |
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 Feb 2020Three personal bests in one day at Cubing Peoria 2020.
- 22 Apr 2018First sub-10 3×3: 9.47 at Gateway Ravioli Spring 2018.
- 29 Oct 2017Three personal bests in one day at St. Boois 2017.
- 9 Sep 2017Three personal bests in one day at Bulldog Cubing 2017.
- 7 Jul 2017First sub-15 3×3: 11.25 at CubingUSA Nationals 2017.
- 7 Jul 2017Four personal bests in one day at CubingUSA Nationals 2017.
Competitions
- Cubing Peoria 2020 · 16 Feb 2020 — 3 personal bests set
- Gateway Ravioli Spring 2018 · 22 Apr 2018 — 1 personal best set
- SCC Winter 2018 · 20 Jan 2018
- St. Boois 2017 · 29 Oct 2017 — 3 personal bests set
- Bulldog Cubing 2017 · 9 Sep 2017 — 3 personal bests set
- CubingUSA Nationals 2017 · 7 Jul 2017 — 4 personal bests set
- US Nationals 2016 · 29 Jul 2016 — 4 personal bests set
- Music City Winter 2016 · 2 Jan 2016 — 3 personal bests set
- Kansas City Cubing 2015 · 7 Nov 2015
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.
- Justin Barker — met in 48 rounds, finished ahead 7 times
- Dash Flory — met in 39 rounds, finished ahead 26 times
- Edward Vakula — met in 38 rounds, finished ahead 3 times
Next targets
- A sub-8 3×3 single — 8,101 people have one; it is 1.45 away.
- A sub-2 2×2 single — 9,039 people have one; it is 0.45 away.
Targets move as he improves.