People · China
Jiarun Mao (毛家润)
4×4 · top 3.9% of 83,917 all-time · competing since March 2024 · 2024MAOJ01
Jiarun Mao (毛家润) has been competing for 2 years. His best event is the 4×4: a personal-best single of 31.60, set at Guangzhou Big Cubes 2026, puts him in the top 3.9% of the 83,917 people who have ever been ranked in the event, and 378th in China. Until May 2011, no official 4×4 solve in the world had been that fast. Across 2 competitions since March 2024, he has put 24 official solves on the record across five events. Jiarun has entered two competitions.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| 4×4 | 31.60 | 37.98 | top 3.9% | 378 / 5,926 | |
| 5×5 | 57.97 | 1:06.43 | top 4.5% | 215 / 2,816 | |
| 6×6 | 1:43.02 | 1:49.49 | early days — 3 solves | 105 / 1,349 | |
| 3×3 | 9.96 | 12.70 | top 7.3% | 2,863 / 28,153 | |
| 7×7 | 2:50.72 | 2:54.88 | early days — 3 solves | 169 / 1,261 |
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 story so far
- 30 Mar 2024First competition: Xuzhou Open 2024. A 9.96 3×3 single to start from.
Competitions
- Guangzhou Big Cubes 2026 · 20 Jun 2026 — 1 personal best set
- Xuzhou Open 2024 · 30 Mar 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.
- Zhijie Yin (尹智杰) — met in 5 rounds, finished ahead 5 times
- Wenqiang Yan (严文强) — met in 5 rounds, finished ahead 5 times
- Yonghao Xu (徐永浩) — met in 5 rounds, finished ahead 5 times
Next targets
- A sub-30 4×4 single — 2,388 people have one; it is 1.60 away.
- A sub-50 5×5 single — 713 people have one; it is 7.97 away.
Targets move as he improves.