People · China
Shibo Zhang (张世博)
3×3 · top 1.1% of 284,439 all-time · competing since August 2019 · 2019ZHAS06
Shibo Zhang (张世博) has been competing for 7 years. His best event is the 3×3: a personal-best single of 6.73, set at Chengdu Flash Cube Open 2023, puts him in the top 1.1% of the 284,439 people who have ever been ranked in the event, and 388th in China. Until January 2011, no official 3×3 solve in the world had been that fast. Across 13 competitions since August 2019, he has put 296 official solves on the record across six events. Solve to solve, his 3×3 times vary about 14% around a typical one; 69% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 17.43 in August 2019 to 6.73, a 61% improvement. Shibo has entered 13 competitions, more competitions than 94% 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 | 6.73 | 8.39 | top 1.1% | 388 / 28,153 | |
| 2×2 | 1.42 | 2.21 | top 1.8% | 210 / 15,796 | |
| Pyraminx | 2.74 | 4.53 | top 2.8% | 329 / 10,224 | |
| 4×4 | 39.32 | 50.50 | top 11.3% | 1,205 / 5,926 | |
| Skewb | 4.23 | 5.88 | top 12.5% | 752 / 5,004 | |
| 3×3 one-handed | 19.15 | 22.24 | top 18.2% | 1,816 / 5,922 |
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
- 12 Aug 2023First sub-10 3×3: 7.13 at Rubik's WCA World Championship 2023.
- 12 Aug 2023Five personal bests in one day at Rubik's WCA World Championship 2023.
- 24 Aug 2019First sub-15 3×3: 10.63 at Xi'an 10th Anniversary 2019.
- 24 Aug 2019Three personal bests in one day at Xi'an 10th Anniversary 2019.
- 11 Aug 2019First competition: Baoji Open 2019. A 17.43 3×3 single to start from.
Competitions
- Xi'an Autumn 2025 · 2 Nov 2025
- Xi'an Summer 2025 · 19 Jul 2025
- Xi'an Cherry Blossom 2025 · 4 Apr 2025 — 1 personal best set
- Xi'an New Year 2025 · 4 Jan 2025
- Xi'an Cherry Blossom 2024 · 5 Apr 2024 — 1 personal best set
- Chengdu Flash Cube Open 2023 · 15 Oct 2023 — 1 personal best set
- Rubik's WCA World Championship 2023 · 12 Aug 2023 — 5 personal bests set
- Xi'an Cherry Blossom PM 2021 · 11 Apr 2021
- Xi'an Cherry Blossom Special 2021 · 10 Apr 2021 — 1 personal best set
- Xi'an New Year 2020 · 1 Jan 2020 — 2 personal bests set
- Shandong Open 2019 · 4 Oct 2019 — 2 personal bests set
- Xi'an 10th Anniversary 2019 · 24 Aug 2019 — 3 personal bests set
- Baoji Open 2019 · 11 Aug 2019
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.
- Xinyun Chen (陈新运) — met in 34 rounds, finished ahead 13 times
- Kaiyang Gao (高凯阳) — met in 32 rounds, finished ahead 14 times
- Jiazhou Li (李佳洲) — met in 31 rounds, never finished ahead
Next targets
- A sub-6 3×3 single — 1,376 people have one; it is 0.73 away.
- A sub-1 2×2 single — 1,032 people have one; it is 0.42 away.
Targets move as he improves.