People · China
Hengbo Cai (蔡恒博)
3×3 · top 21.8% of 284,439 all-time · competing since May 2025 · 2025CAIH01
Hengbo Cai (蔡恒博) has been competing for a year. His best event is the 3×3: a personal-best single of 14.24, set at Shenyang Autumn 2025, puts him in the top 21.8% of the 284,439 people who have ever been ranked in the event, and 8,381st in China. Across 5 competitions since May 2025, he has put 57 official solves on the record across five events. His 3×3 best has come down from 17.83 in May 2025 to 14.24, a 20% improvement. Hengbo has entered five competitions, more competitions than 83% 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 | 14.24 | 16.73 | top 21.8% | 8,381 / 28,153 | |
| Pyraminx | 6.39 | 14.27 | top 22.9% | 2,613 / 10,224 | |
| 4×4 | 55.26 | 1:03.45 | top 31.0% | 3,141 / 5,926 | |
| 2×2 | 4.61 | 5.38 | top 34.4% | 5,891 / 15,796 | |
| Skewb | 7.31 | 14.25 | top 36.1% | 2,177 / 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, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 21 Sep 2025First sub-15 3×3: 14.24 at Shenyang Autumn 2025.
- 17 May 2025First competition: Beijing Summer 2025. A 17.83 3×3 single to start from.
Competitions
- Japan Championship 2026 · 18 Jul 2026 — 1 personal best set
- Katano Spring 2026 · 21 Mar 2026 — 1 personal best set
- Shenyang Autumn 2025 · 21 Sep 2025 — 1 personal best set
- Harbin Open 2025 · 20 Jul 2025
- Beijing Summer 2025 · 17 May 2025
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.
- Heyu Fu (付荷语) — met in 9 rounds, never finished ahead
- Xiran Hu (胡希然) — met in 9 rounds, never finished ahead
- Hanmo Hou (侯瀚墨) — met in 9 rounds, never finished ahead
Next targets
- A sub-12 3×3 single — 39,535 people have one; it is 2.24 away.
- A sub-6 Pyraminx single — 25,870 people have one; it is 0.39 away.
Targets move as he improves.