People · China
Hailun Su (苏海伦)
Megaminx · top 2.4% of 35,351 all-time · competing since April 2018 · 2018SUHA04
Hailun Su (苏海伦) has been competing for 9 years. Her best event is the Megaminx: a personal-best single of 42.82, set at Foshan Open 2026, puts her in the top 2.4% of the 35,351 people who have ever been ranked in the event, and 47th in China. Until April 2011, no official Megaminx solve in the world had been that fast. Across 14 competitions since April 2018, she has put 462 official solves on the record across nine events. Solve to solve, her 3×3 times vary about 11% around a typical one, steadier than 86% of the 36,406 competitors with ten or more counted rounds. Her 2×2 best has come down from 3.01 in April 2018 to 1.78, a 41% improvement. Hailun has entered 14 competitions, more competitions than 95% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| Megaminx | 42.82 | 46.49 | top 2.4% | 47 / 1,693 | |
| 2×2 | 1.78 | 2.33 | top 3.5% | 471 / 15,939 | |
| 3×3 | 8.77 | 10.22 | top 4.4% | 1,688 / 28,499 | |
| 3×3 one-handed | 14.78 | 17.02 | top 7.7% | 761 / 5,994 | |
| 4×4 | 37.44 | 41.52 | top 9.2% | 991 / 5,999 | |
| Pyraminx | 4.48 | 6.97 | top 10.1% | 1,223 / 10,269 | |
| Skewb | 4.27 | 6.01 | top 12.9% | 791 / 5,030 | |
| Clock | 9.64 | 13.08 | top 23.2% | 536 / 1,887 | |
| 5×5 | 1:44.72 | 1:46.52 | top 39.0% | 1,788 / 2,857 |
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, 2×2. Faster is higher — the axis is the right way up.
The story so far
- 15 Jun 2025First sub-10 3×3: 9.31 at Zhuhai Open 2025.
- 19 Jan 2020Three personal bests in one day at Jieyang Winter 2020.
- 21 Jul 2019Four personal bests in one day at Meizhou Open 2019.
- 21 Jul 2018Seven personal bests in one day at Shenzhen Open 2018.
- 30 Apr 2018Six personal bests in one day at Guangdong Open 2018.
- 6 Apr 2018First competition: Cross-strait Cubing Exchange 2018. A 12.61 3×3 single to start from.
Competitions
- Singapore Polytechnic September Showdown 2026 · 19 Sep 2026
- Guangzhou Special 2026 · 19 Jun 2026
- Foshan Open 2026 · 2 May 2026 — 2 personal bests set
- Zhuhai Pi Day 2026 · 14 Mar 2026 — 1 personal best set
- Guangzhou Special 2025 · 8 Nov 2025 — 2 personal bests set
- Jiangmen Open 2025 · 24 Aug 2025 — 1 personal best set
- Zhuhai Open 2025 · 15 Jun 2025 — 1 personal best set
- Jieyang Winter 2020 · 19 Jan 2020 — 3 personal bests set
- China Championship 2019 · 26 Jul 2019 — 2 personal bests set
- Meizhou Open 2019 · 21 Jul 2019 — 4 personal bests set
- Shenzhen Open 2018 · 21 Jul 2018 — 7 personal bests set
- Zhangzhou Open 2018 · 14 Jul 2018 — 2 personal bests set
- Guangdong Open 2018 · 30 Apr 2018 — 6 personal bests set
- Cross-strait Cubing Exchange 2018 · 6 Apr 2018 — 1 personal best set
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.
- Zijian Cai (蔡子健) — met in 51 rounds, finished ahead 6 times
- Xusheng Hong (洪旭升) — met in 47 rounds, finished ahead 41 times
- Wong Yuk Chi (黃昱誌) — met in 39 rounds, finished ahead 4 times
Next targets
- A sub-40 Megaminx single — 567 people have one; it is 2.82 away.
- A sub-1 2×2 single — 1,050 people have one; it is 0.78 away.
Targets move as she improves.