People · China
Shiyou Gu (顾释友)
Skewb · top 0.66% of 73,281 all-time · competing since March 2021 · 2021GUSH01
Shiyou Gu (顾释友) has been competing for 5 years. His best event is the Skewb: a personal-best single of 1.66, set at Hefei Open 2025, puts him in the top 0.66% of the 73,281 people who have ever been ranked in the event, and 32nd in China. Until October 2015, no official Skewb solve in the world had been that fast. Across 9 competitions since March 2021, he has put 184 official solves on the record across five events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 64% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 12.96 in March 2021 to 6.72, a 48% improvement. Shiyou has entered nine competitions, more competitions than 91% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| Skewb | 1.66 | 3.29 | top 0.66% | 32 / 5,004 | |
| Pyraminx | 1.74 | 3.17 | top 0.73% | 82 / 10,224 | |
| 2×2 | 1.18 | 1.64 | top 0.98% | 108 / 15,796 | |
| 3×3 | 6.72 | 8.34 | top 1.0% | 385 / 28,153 | |
| Megaminx | 1:36.72 | — | early days — 2 solves | 967 / 1,678 |
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
- 25 Nov 2023First sub-10 3×3: 8.85 at Hefei Winter Open 2023.
- 25 Nov 2023Three personal bests in one day at Hefei Winter Open 2023.
- 27 Mar 2021First competition: Shaoxing Morning 2021. A 12.96 3×3 single to start from.
Competitions
- Hefei Open 2025 · 25 Oct 2025 — 2 personal bests set
- Zibo Open 2025 · 10 Aug 2025 — 1 personal best set
- Xuzhou Open 2024 · 30 Mar 2024 — 2 personal bests set
- Shenyang Open 2023 · 17 Dec 2023 — 1 personal best set
- Hefei Winter Open 2023 · 25 Nov 2023 — 3 personal bests set
- Kunshan Afternoon 2021 · 2 May 2021 — 1 personal best set
- Hangzhou Open AM 2021 · 18 Apr 2021
- Beijing Spring AM 2021 · 4 Apr 2021 — 1 personal best set
- Shaoxing Morning 2021 · 27 Mar 2021
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.
- Ziyu Ye (叶梓渝) — met in 25 rounds, finished ahead 5 times
- Yiheng Wang (王艺衡) — met in 21 rounds, finished ahead twice
- Yifan Luo (骆奕帆) — met in 18 rounds, finished ahead 5 times
Next targets
- A sub-1 Skewb single — 35 people have one; it is 0.66 away.
- A sub-1 Pyraminx single — 49 people have one; it is 0.74 away.
Targets move as he improves.