People · China
Jiechun Lin (林洁纯)
Skewb · top 2.0% of 73,281 all-time · competing since August 2016 · 2016LINJ06
Jiechun Lin (林洁纯) has been competing for 10 years. Her best event is the Skewb: a personal-best single of 2.23, set at Guangzhou Special 2026, puts her in the top 2.0% of the 73,281 people who have ever been ranked in the event, and 100th in China. Until February 2014, no official Skewb solve in the world had been that fast. Across 20 competitions since August 2016, she has put 282 official solves on the record across seven events. Solve to solve, her 3×3 times vary about 16% around a typical one; 91% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. Her Skewb best has come down from 4.64 in June 2019 to 2.23, a 52% improvement. Jiechun has entered 20 competitions, more competitions than 97% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| Skewb | 2.23 | 4.44 | top 2.0% | 100 / 5,004 | |
| 3×3 | 11.61 | 13.64 | top 12.5% | 4,958 / 28,153 | |
| 4×4 | 44.10 | 51.75 | top 17.2% | 1,854 / 5,926 | |
| Pyraminx | 7.34 | 10.83 | top 30.7% | 3,378 / 10,224 | |
| 5×5 | 1:35.01 | 1:44.09 | top 31.5% | 1,426 / 2,816 | |
| Clock | 11.73 | 12.27 | top 33.7% | 802 / 1,843 | |
| 2×2 | 6.31 | 9.42 | top 54.1% | 9,177 / 15,796 |
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, Skewb. Faster is higher — the axis is the right way up.
The story so far
- 24 Aug 2025Three personal bests in one day at Jiangmen Open 2025.
- 9 Jan 2021First sub-15 3×3: 12.96 at Shenzhen Good Morning 2021.
- 24 Aug 2019First sub-20 3×3: 18.34 at Shenzhen Cubing 10th Anniversary 2019.
- 22 Apr 2017First sub-30 3×3: 22.38 at Guangzhou SCUT 2017.
- 13 Aug 2016First competition: Cross-strait Cubing Exchange 2016. A 34.29 3×3 single to start from.
Competitions
- Ulanqab Big Cubes 2026 · 29 Aug 2026
- Ulanqab Small Cubes 2026 · 29 Aug 2026
- Zhangzhou Open 2026 · 27 Jun 2026
- Guangzhou Special 2026 · 19 Jun 2026 — 1 personal best set
- Liuzhou Open 2026 · 24 May 2026
- Foshan Open 2026 · 2 May 2026
- Xi'an Cherry Blossom 2026 · 4 Apr 2026 — 2 personal bests set
- Guangdong Open - Revival & Rival 2026 · 6 Feb 2026
- Canton Countdown 2025 · 31 Dec 2025 — 1 personal best set
- Jiangmen Open 2025 · 24 Aug 2025 — 3 personal bests set
- Guangzhou Special 2024 · 2 Jun 2024 — 1 personal best set
- Guangdong Open 2021 · 1 May 2021 — 1 personal best set
- Guangzhou Panyu Afternoon 2021 · 28 Feb 2021 — 1 personal best set
- Shenzhen Good Morning 2021 · 9 Jan 2021 — 2 personal bests set
- Xiamen Autumn 2019 · 6 Oct 2019 — 2 personal bests set
- Shenzhen Cubing 10th Anniversary 2019 · 24 Aug 2019 — 1 personal best set
- Special Puzzles in Guangzhou 2019 · 16 Jun 2019 — 1 personal best set
- China's 10th Anniversary Championship 2017 · 1 Oct 2017 — 1 personal best set
- Guangzhou SCUT 2017 · 22 Apr 2017 — 1 personal best set
- Cross-strait Cubing Exchange 2016 · 13 Aug 2016
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 her.
- Yiyun Chen (陈毅昀) — met in 37 rounds, finished ahead 10 times
- Jingbin Li (李晶斌) — met in 35 rounds, finished ahead 3 times
- Lianghai Sui (眭亮海) — met in 31 rounds, finished ahead 17 times
Next targets
- A sub-2 Skewb single — 1,013 people have one; it is 0.23 away.
- A sub-10 3×3 single — 21,172 people have one; it is 1.61 away.
Targets move as she improves.