People · China
Jiahua Zhang (张家华)
3×3 · top 1.5% of 288,433 all-time · competing since January 2014 · 2014ZHAN02
Jiahua Zhang (张家华) has been competing for 13 years. His best event is the 3×3: a personal-best single of 7.11, set at Cross-strait Cubing Exchange 2016, puts him in the top 1.5% of the 288,433 people who have ever been ranked in the event, and 532nd in China. Until July 2008, no official 3×3 solve in the world had been that fast. Across 13 competitions since January 2014, he has put 428 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 72% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 15.00 in January 2014 to 7.11, a 53% improvement. Jiahua has entered 13 competitions, more competitions than 94% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| 3×3 | 7.11 | 8.76 | top 1.5% | 532 / 28,499 | |
| 4×4 | 28.57 | 30.65 | top 2.1% | 205 / 5,999 | |
| 5×5 | 58.27 | 1:04.45 | top 4.7% | 234 / 2,857 | |
| 3×3 one-handed | 14.28 | 16.40 | top 6.7% | 665 / 5,994 | |
| 2×2 | 2.40 | 2.82 | top 8.0% | 1,173 / 15,939 | |
| Megaminx | 57.06 | 1:08.26 | top 8.5% | 220 / 1,693 | |
| 6×6 | 2:07.03 | 2:13.90 | top 14.2% | 315 / 1,363 | |
| 7×7 | 3:26.81 | 3:36.46 | top 18.7% | 396 / 1,274 | |
| Skewb | 5.14 | 9.79 | top 19.3% | 1,210 / 5,030 |
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
- 9 Dec 2018Three personal bests in one day at Big 'n Blind Guangzhou 2018.
- 13 Aug 2016Five personal bests in one day at Cross-strait Cubing Exchange 2016.
- 2 Oct 2015Five personal bests in one day at China Championship 2015.
- 1 Jan 2015First sub-10 3×3: 9.94 at Guangzhou New Year's Cube Day 2015.
- 1 Oct 2014First sub-15 3×3: 11.86 at Guangdong Open 2014.
- 1 Oct 2014Three personal bests in one day at Guangdong Open 2014.
Competitions
- Guangzhou Grand Open 2026 · 5 Oct 2026 — 1 personal best set
- Guangzhou Big Cubes 2026 · 20 Jun 2026 — 1 personal best set
- Guangzhou Special 2026 · 19 Jun 2026 — 1 personal best set
- Foshan Open 2026 · 2 May 2026 — 1 personal best set
- Zhuhai Pi Day 2026 · 14 Mar 2026 — 1 personal best set
- Big 'n Blind Guangzhou 2018 · 9 Dec 2018 — 3 personal bests set
- Dongguan Mid-Autumn Festival 2018 · 22 Sep 2018
- China's 10th Anniversary Championship 2017 · 1 Oct 2017 — 2 personal bests set
- Cross-strait Cubing Exchange 2016 · 13 Aug 2016 — 5 personal bests set
- China Championship 2015 · 2 Oct 2015 — 5 personal bests set
- Guangzhou New Year's Cube Day 2015 · 1 Jan 2015 — 1 personal best set
- Guangdong Open 2014 · 1 Oct 2014 — 3 personal bests set
- Guangzhou Small Cubes 2014 · 12 Jan 2014
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.
- Kailong Li (李开隆) — met in 55 rounds, finished ahead 9 times
- Leung Ka Ho (梁家浩) — met in 48 rounds, finished ahead 22 times
- Mok Man Kit (莫文傑) — met in 47 rounds, finished ahead 35 times
Next targets
- A sub-6 3×3 single — 1,419 people have one; it is 1.11 away.
- A sub-25 4×4 single — 614 people have one; it is 3.57 away.
Targets move as he improves.