People · United States
Harrison Zuo
3×3 · top 16.0% of 284,439 all-time · competing since January 2025 · 2025ZUOH01
Harrison Zuo has been competing for a year. His best event is the 3×3: a personal-best single of 12.59, set at Yuba City Fall 2025, puts him in the top 16.0% of the 284,439 people who have ever been ranked in the event, and 8,563rd in the United States. Across 6 competitions since January 2025, he has put 90 official solves on the record across four events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 74% of the 35,811 competitors with ten or more counted rounds. That figure sets aside his 3 DNFs. His 3×3 best has come down from 30.56 in January 2025 to 12.59, a 59% improvement. Harrison has entered six competitions, more competitions than 86% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | United States | |
|---|---|---|---|---|---|
| 3×3 | 12.59 | 17.84 | top 16.0% | 8,563 / 59,724 | |
| Pyraminx | 6.87 | 9.47 | top 26.8% | 7,345 / 28,708 | |
| 2×2 | 4.22 | 6.45 | top 29.3% | 11,633 / 40,951 | |
| Skewb | 12.18 | 20.75 | top 66.9% | 12,509 / 18,907 |
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 Oct 2025First sub-15 3×3: 14.78 at Davis Fall 2025.
- 28 Sep 2025First sub-20 3×3: 17.48 at SacCubing XXI 2025.
- 28 Sep 2025Three personal bests in one day at SacCubing XXI 2025.
- 6 Apr 2025First sub-30 3×3: 26.38 at Davis Spring 2025.
- 19 Jan 2025First competition: SacCubing XIX 2025. A 30.56 3×3 single to start from.
Competitions
- Yuba City Fall 2025 · 15 Nov 2025 — 1 personal best set
- Davis Fall 2025 · 25 Oct 2025 — 1 personal best set
- SacCubing XXI 2025 · 28 Sep 2025 — 3 personal bests set
- SacCubing XX 2025 · 18 May 2025 — 1 personal best set
- Davis Spring 2025 · 6 Apr 2025 — 2 personal bests set
- SacCubing XIX 2025 · 19 Jan 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.
- Sebastian Stone — met in 19 rounds, finished ahead once
- Sabir Dhillon — met in 19 rounds, never finished ahead
- Isaac Modrow — met in 19 rounds, never finished ahead
Next targets
- A sub-12 3×3 single — 39,535 people have one; it is 0.59 away.
- A sub-6 Pyraminx single — 25,870 people have one; it is 0.87 away.
Targets move as he improves.