People · Chinese Taipei
Shih-Si Yao (姚詩璽)
5×5 · top 1.6% of 41,402 all-time · competing since September 2023 · 2023YAOS03
Shih-Si Yao (姚詩璽) has been competing for 3 years. His best event is the 5×5: a personal-best single of 49.22, set at Taiwan Championship 2025, puts him in the top 1.6% of the 41,402 people who have ever been ranked in the event, and 27th in Chinese Taipei. Until August 2014, no official 5×5 solve in the world had been that fast. Across 8 competitions since September 2023, he has put 325 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 9% around a typical one, steadier than 99% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 13.28 in September 2023 to 7.87, a 41% improvement. He has entered eight competitions, more competitions than 90% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Chinese Taipei | |
|---|---|---|---|---|---|
| 5×5 | 49.22 | 56.41 | top 1.6% | 27 / 640 | |
| 4×4 | 28.04 | 31.77 | top 1.8% | 49 / 1,079 | |
| 7×7 | 2:21.51 | 2:31.67 | top 2.5% | 20 / 252 | |
| 3×3 | 7.87 | 8.84 | top 2.6% | 154 / 4,369 | |
| 6×6 | 1:34.02 | 1:37.86 | top 2.7% | 21 / 293 | |
| Megaminx | 48.19 | 53.83 | top 4.4% | 24 / 363 | |
| Square-1 | 9.99 | 12.67 | top 6.1% | 28 / 323 | |
| 3×3 one-handed | 14.35 | 15.33 | top 6.9% | 89 / 805 | |
| 2×2 | 2.34 | 3.50 | top 7.4% | 198 / 1,671 | |
| Pyraminx | 5.17 | 6.91 | top 14.3% | 221 / 1,017 | |
| Skewb | 5.07 | 7.83 | top 18.7% | 188 / 700 | |
| Clock | 14.09 | — | early days — 2 solves | 204 / 370 |
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
- 19 Dec 2025Four personal bests in one day at Taiwan Championship 2025.
- 29 Nov 2025Six personal bests in one day at Taoyuan Airport Cube Day 2025.
- 25 May 2025Three personal bests in one day at Chien Kuo Cubing Party 2025.
- 23 Nov 2024Three personal bests in one day at Taoyuan Airport Cube Day 2024.
- 28 Sep 2024First sub-10 3×3: 9.37 at Shin Kong Cube Open - New Taipei 2024.
- 16 Sep 2023First competition: Shin Kong Cube Open 2023. A 13.28 3×3 single to start from.
Competitions
- Chien Kuo Cubing Party 2026 · 18 Jul 2026 — 2 personal bests set
- Taiwan Championship 2025 · 19 Dec 2025 — 4 personal bests set
- Taoyuan Airport Cube Day 2025 · 29 Nov 2025 — 6 personal bests set
- Hsinchu Summer Open 2025 · 17 Aug 2025 — 1 personal best set
- Chien Kuo Cubing Party 2025 · 25 May 2025 — 3 personal bests set
- Taoyuan Airport Cube Day 2024 · 23 Nov 2024 — 3 personal bests set
- Shin Kong Cube Open - New Taipei 2024 · 28 Sep 2024 — 2 personal bests set
- Shin Kong Cube Open 2023 · 16 Sep 2023
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.
- Chao-Che Chung (鍾肇哲) — met in 67 rounds, finished ahead 18 times
- Chun-Pao Ni (倪君寶) — met in 61 rounds, finished ahead 30 times
- Cian-Jyun Yang (楊謙君) — met in 61 rounds, finished ahead 3 times
Next targets
- A sub-40 5×5 single — 73 people have one; it is 9.22 away.
- A sub-25 4×4 single — 614 people have one; it is 3.04 away.
Targets move as he improves.