People · United States
Jackey Zheng
Square-1 · top 0.25% of 25,662 all-time · competing since April 2017 · 2017ZHEN10
Jackey Zheng has been competing for 10 years. His best event is the Square-1: a personal-best single of 4.95, set at Brooklyn 2019, puts him in the top 0.25% of the 25,662 people who have ever been ranked in the event, and 30th in the United States. Until May 2019, no official Square-1 solve in the world had been that fast. Across 49 competitions since April 2017, he has put 1,459 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 59% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 15.36 in November 2017 to 8.77, a 43% improvement. Jackey has entered 49 competitions, more competitions than 99% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | United States | |
|---|---|---|---|---|---|
| Square-1 | 4.95 | 7.60 | top 0.25% | 30 / 6,846 | |
| 3×3 | 8.77 | 10.47 | top 4.4% | 2,464 / 60,666 | |
| 2×2 | 2.31 | 3.57 | top 7.2% | 2,894 / 41,674 | |
| Megaminx | 58.67 | 1:05.25 | top 9.3% | 668 / 8,026 | |
| 4×4 | 37.88 | 40.54 | top 9.7% | 1,479 / 19,354 | |
| Skewb | 3.94 | 6.37 | top 10.5% | 1,640 / 19,164 | |
| Pyraminx | 5.46 | 7.47 | top 16.2% | 4,364 / 29,168 | |
| Clock | 8.40 | 12.48 | top 17.0% | 1,321 / 9,172 | |
| 3×3 one-handed | 19.05 | 24.28 | top 18.0% | 2,350 / 15,900 | |
| 5×5 | 1:26.22 | 1:39.67 | top 24.4% | 1,924 / 9,537 | |
| 6×6 | 4:10.46 | — | early days — 2 solves | 2,741 / 4,262 | |
| 3×3 blindfolded | 4:23.43 | — | early days — 1 solve | 1,546 / 2,128 | |
| 3×3 Fewest Moves | 52 moves | — | early days — 2 solves | 1,701 / 2,059 |
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 2019Six personal bests in one day at CubingUSA Northeast Championship 2019.
- 12 Jan 2019Three personal bests in one day at Boston University Winter 2019.
- 17 Nov 2018First sub-10 3×3: 8.81 at CubingUSA New Jersey Championship 2018.
- 17 Nov 2018Four personal bests in one day at CubingUSA New Jersey Championship 2018.
- 13 Jan 2018First sub-15 3×3: 12.93 at New York City Winter 2018.
- 13 Jan 2018Three personal bests in one day at New York City Winter 2018.
Competitions
- Penn Cube Day Fall 2026 · 10 Oct 2026
- Mid-Atlantic Warm-Up 2026 · 9 Aug 2026 — 1 personal best set
- Cubes on the Bayside Winter 2024 · 14 Jan 2024 — 2 personal bests set
- Cubes on the Bayside 2023 · 18 Nov 2023
- Slow N Steady Fall 2022 · 29 Oct 2022 — 1 personal best set
- Empire State Summer A 2021 · 31 Jul 2021
- Babylon Winter 2020 · 29 Feb 2020 — 2 personal bests set
- Country Roads Martinsburg 2020 · 22 Feb 2020 — 1 personal best set
- Princeton Winter 2020 · 8 Feb 2020 — 1 personal best set
- Branchburg Open 2019 · 2 Nov 2019 — 1 personal best set
- Bridgeport Side Events 2019 · 27 Oct 2019
- Empire State Fall 2019 · 12 Oct 2019 — 1 personal best set
- Brooklyn Fall 2019 · 12 Oct 2019 — 1 personal best set
- CubingUSA Nationals 2019 · 1 Aug 2019
- Canadian Championship 2019 · 26 Jul 2019 — 1 personal best set
- WCA World Championship 2019 · 11 Jul 2019 — 2 personal bests set
- Arcadia Summer 2019 · 22 Jun 2019
- Colonie Spring 2019 · 8 Jun 2019 — 2 personal bests set
- Brooklyn 2019 · 25 May 2019 — 2 personal bests set
- STMHS Spring 2019 · 18 May 2019 — 2 personal bests set
- Meadowlands 2019 · 4 May 2019 — 2 personal bests set
- Burke Mountain Cubing 2019 · 13 Apr 2019 — 2 personal bests set
- SBU Spring 2019 · 31 Mar 2019
- Binghamton Winter 2019 · 3 Mar 2019
- CubingUSA Northeast Championship 2019 · 16 Feb 2019 — 6 personal bests set
- Princeton Winter 2019 · 9 Feb 2019 — 2 personal bests set
- New Hope Open Winter 2019 · 20 Jan 2019 — 1 personal best set
- Boston University Winter 2019 · 12 Jan 2019 — 3 personal bests set
- Welcome to 2019 · 31 Dec 2018
- Penn Cube Day Fall 2018 · 8 Dec 2018 — 2 personal bests set
- CubingUSA New Jersey Championship 2018 · 17 Nov 2018 — 4 personal bests set
- Lower Moreland Fall 2018 · 10 Nov 2018 — 2 personal bests set
- New York City Fall 2018 · 21 Oct 2018 — 1 personal best set
- Fall Foliage Cubing 2018 · 20 Oct 2018 — 1 personal best set
- Princeton Fall 2018 · 29 Sep 2018
- Kew Forest Open 2018 · 22 Sep 2018 — 1 personal best set
- Quinnipiac 2018 · 8 Sep 2018 — 2 personal bests set
- Pennsylvania 2018 · 17 Aug 2018 — 1 personal best set
- Brooklyn 2018 · 8 Jul 2018 — 1 personal best set
- Meadowlands 2018 · 9 Jun 2018 — 1 personal best set
- CubingUSA Northeast Championship 2018 · 2 Jun 2018 — 2 personal bests set
- North Plainfield Open 2018 · 19 May 2018 — 1 personal best set
- New York City Spring 2018 · 21 Apr 2018 — 1 personal best set
- Rutgers Spring 2018 · 31 Mar 2018 — 2 personal bests set
- Penn Cube Day Winter 2018 · 4 Feb 2018 — 2 personal bests set
- New York City Winter 2018 · 13 Jan 2018 — 3 personal bests set
- Hudson Valley Fall 2017 · 5 Nov 2017 — 4 personal bests set
- Meadowlands 2017 · 3 Jun 2017 — 1 personal best set
- Silent Spring 2017 · 15 Apr 2017
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.
- Lauren Phung — met in 183 rounds, finished ahead 45 times
- Luke Galioto — met in 169 rounds, finished ahead 147 times
- AJ Kamal — met in 167 rounds, finished ahead 29 times
Next targets
- A sub-4 Square-1 single — 13 people have one; it is 0.95 away.
- A sub-8 3×3 single — 8,101 people have one; it is 0.77 away.
Targets move as he improves.