People · China
Xiaodan Cai (蔡潇丹)
3×3 · top 7.2% of 284,439 all-time · competing since May 2024 · 2024CAIX01
Xiaodan Cai (蔡潇丹) has been competing for 2 years. His best event is the 3×3: a personal-best single of 9.92, set at Kansai Mega Day 2025, puts him in the top 7.2% of the 284,439 people who have ever been ranked in the event, and 2,816th in China. Until May 2007, no official 3×3 solve in the world had been that fast. Across 3 competitions since May 2024, he has put 60 official solves on the record across six events. Solve to solve, his 3×3 times vary about 15% around a typical one, an early reading from 5 counted rounds. His 3×3 best has come down from 18.96 in May 2024 to 9.92, a 48% improvement. Xiaodan has entered three competitions, more competitions than 69% 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 | 9.92 | 11.10 | top 7.2% | 2,816 / 28,153 | |
| 2×2 | 2.52 | 3.99 | top 9.1% | 1,346 / 15,796 | |
| Pyraminx | 4.40 | 6.86 | top 9.7% | 1,145 / 10,224 | |
| Megaminx | 1:13.49 | 1:24.42 | top 17.7% | 533 / 1,678 | |
| Skewb | 5.41 | 8.33 | top 21.3% | 1,326 / 5,004 | |
| 4×4 | 1:31.58 | 1:45.26 | top 64.8% | 5,218 / 5,926 |
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
- 2 Nov 2025First sub-10 3×3: 9.92 at Kansai Mega Day 2025.
- 15 Sep 2025First sub-15 3×3: 11.76 at Katano Summer 2025.
- 25 May 2024First competition: Kanazawa 2024. A 18.96 3×3 single to start from.
Competitions
- Kansai Mega Day 2025 · 2 Nov 2025 — 2 personal bests set
- Katano Summer 2025 · 15 Sep 2025 — 2 personal bests set
- Kanazawa 2024 · 25 May 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.
- Hajime Miyazaki (宮崎朔) — met in 12 rounds, finished ahead twice
- Makoto Takaoka (高岡誠) — met in 12 rounds, never finished ahead
- Kantaro Sakamoto (坂本貫太郎) — met in 12 rounds, never finished ahead
Next targets
- A sub-8 3×3 single — 7,931 people have one; it is 1.92 away.
- A sub-2 2×2 single — 8,848 people have one; it is 0.52 away.
Targets move as he improves.