People · Singapore
Zheng Yubo
Pyraminx · top 6.0% of 129,321 all-time · competing since June 2025 · 2025YUBO01
Zheng Yubo has been competing for a year. His best event is the Pyraminx: a personal-best single of 3.64, set at Mofunland Speedcubing Singapore 2025, puts him in the top 6.0% of the 129,321 people who have ever been ranked in the event, and 68th in Singapore. Until February 2008, no official Pyraminx solve in the world had been that fast. Across 3 competitions since June 2025, he has put 44 official solves on the record across four events. His 2×2 best has come down from 5.76 in June 2025 to 4.06, a 30% improvement. Zheng 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 | Singapore | |
|---|---|---|---|---|---|
| Pyraminx | 3.64 | 10.60 | top 6.0% | 68 / 645 | |
| 2×2 | 4.06 | 4.69 | top 27.3% | 364 / 1,053 | |
| 3×3 | 16.27 | 17.93 | top 28.7% | 634 / 1,546 | |
| 3×3 one-handed | 37.37 | 42.89 | top 61.4% | 342 / 460 |
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, 2×2. Faster is higher — the axis is the right way up.
The story so far
- 6 Sep 2025First sub-20 3×3: 16.71 at Mofunland Speedcubing Singapore 2025.
- 26 Jun 2025First competition: Singapore Mofunland Cruise 2025. A 24.90 3×3 single to start from.
Competitions
- Singapore Kempinski Open 2025 · 18 Oct 2025 — 2 personal bests set
- Mofunland Speedcubing Singapore 2025 · 6 Sep 2025 — 2 personal bests set
- Singapore Mofunland Cruise 2025 · 26 Jun 2025
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.
- Ramanujan Srinivasan — met in 9 rounds, finished ahead 4 times
- Aiden Lim Tze Choon — met in 9 rounds, never finished ahead
- Luca Toh — met in 9 rounds, never finished ahead
Next targets
- A sub-3 Pyraminx single — 4,700 people have one; it is 0.64 away.
- A sub-4 2×2 single — 49,452 people have one; it is 0.06 away.
Targets move as he improves.