People · China
Jiaheng Dai (戴佳恒)
Pyraminx · top 34.8% of 129,321 all-time · competing since September 2018 · 2018DAIJ01
Jiaheng Dai (戴佳恒) has been competing for 8 years. His best event is the Pyraminx: a personal-best single of 7.83, set at Longyan Open 2019, puts him in the top 34.8% of the 129,321 people who have ever been ranked in the event, and 3,812th in China. Across 8 competitions since September 2018, he has put 78 official solves on the record across five events. His 2×2 best has come down from 13.27 in September 2018 to 6.43, a 52% improvement. Jiaheng has entered eight competitions, more competitions than 90% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| Pyraminx | 7.83 | 11.62 | top 34.8% | 3,812 / 10,224 | |
| 2×2 | 6.43 | 9.63 | top 55.3% | 9,368 / 15,796 | |
| 3×3 | 27.15 | 39.64 | top 57.1% | 17,713 / 28,153 | |
| Clock | 18.63 | — | early days — 1 solve | 1,376 / 1,843 | |
| Skewb | 12.84 | 15.79 | top 70.0% | 3,678 / 5,004 |
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
- 21 Apr 2024First sub-30 3×3: 27.15 at Nanchang Spring 2024.
- 6 Oct 2019Three personal bests in one day at Xiamen Autumn 2019.
- 21 Jul 2019First sub-60 3×3: 33.68 at Longyan Open 2019.
- 16 Sep 2018First competition: Quanzhou Open 2018. A 1:00.00 3×3 single to start from.
Competitions
- Nanchang Spring 2025 · 26 Apr 2025 — 1 personal best set
- Xuzhou Autumn 2024 · 21 Sep 2024
- FMC 2024 · 1 Jun 2024
- Nanchang Spring 2024 · 21 Apr 2024 — 1 personal best set
- Changsha Open 2023 · 23 Dec 2023
- Xiamen Autumn 2019 · 6 Oct 2019 — 3 personal bests set
- Longyan Open 2019 · 21 Jul 2019 — 2 personal bests set
- Quanzhou Open 2018 · 16 Sep 2018
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.
- Qifeng Wang (王祺丰) — met in 15 rounds, never finished ahead
- Yang Pin Xiu (楊品修) — met in 11 rounds, never finished ahead
- Zheqi Zhu (诸哲祺) — met in 10 rounds, never finished ahead
Next targets
- A sub-6 Pyraminx single — 25,870 people have one; it is 1.83 away.
- A sub-6 2×2 single — 95,042 people have one; it is 0.43 away.
Targets move as he improves.