People · Chinese Taipei
Hsu-An Chang (張旭安)
3×3 · top 3.3% of 288,433 all-time · competing since October 2024 · 2024CHAH03
Hsu-An Chang (張旭安) has been competing for 2 years. His best event is the 3×3: a personal-best single of 8.26, set at Shin Kong Cube Open - Kaohsiung 2025, puts him in the top 3.3% of the 288,433 people who have ever been ranked in the event, and 184th in Chinese Taipei. Until July 2008, no official 3×3 solve in the world had been that fast. Across 4 competitions since October 2024, he has put 60 official solves on the record across five events. Solve to solve, his 3×3 times vary about 11% around a typical one, an early reading from 8 counted rounds. His 3×3 best has come down from 10.87 in October 2024 to 8.26, a 24% improvement. He 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 | Chinese Taipei | |
|---|---|---|---|---|---|
| 3×3 | 8.26 | 11.18 | top 3.3% | 184 / 4,369 | |
| 5×5 | 1:11.78 | 1:20.81 | top 13.0% | 190 / 640 | |
| 3×3 one-handed | 17.79 | 21.41 | top 14.6% | 198 / 805 | |
| Skewb | 4.93 | 7.83 | top 17.6% | 179 / 700 | |
| 7×7 | 4:08.48 | — | early days — 1 solve | 137 / 252 |
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
- 14 Dec 2025First sub-10 3×3: 8.26 at Shin Kong Cube Open - Kaohsiung 2025.
- 1 Mar 2025Three personal bests in one day at Pingtung Winter Open 2025.
- 12 Oct 2024First competition: Shin Kong Cube Open - Kaohsiung 2024. A 10.87 3×3 single to start from.
Competitions
- Shin Kong Cube Open - Kaohsiung 2026 · 13 Sep 2026
- Shin Kong Cube Open - Kaohsiung 2025 · 14 Dec 2025 — 1 personal best set
- Pingtung Winter Open 2025 · 1 Mar 2025 — 3 personal bests set
- Shin Kong Cube Open - Kaohsiung 2024 · 12 Oct 2024
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.
- Yu-Chi Hou (侯宥圻) — met in 14 rounds, finished ahead twice
- Jui-Hung Liu (劉睿紘) — met in 14 rounds, finished ahead twice
- Wu Li (李悟) — met in 14 rounds, finished ahead twice
Next targets
- A sub-8 3×3 single — 8,101 people have one; it is 0.26 away.
- A sub-1:00 5×5 single — 2,328 people have one; it is 11.78 away.
Targets move as he improves.