People · United States
Zach Cho
3×3 · top 40.6% of 284,439 all-time · competing since June 2024 · 2024CHOZ01
Zach Cho has been competing for 2 years. His best event is the 3×3: a personal-best single of 20.22, set at Berkeley Fall 2025, puts him in the top 40.6% of the 284,439 people who have ever been ranked in the event, and 23,073rd in the United States. Across 3 competitions since June 2024, he has put 45 official solves on the record across five events. His 3×3 best has come down from 28.18 in June 2024 to 20.22, a 28% improvement. Zach 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 | United States | |
|---|---|---|---|---|---|
| 3×3 | 20.22 | 22.43 | top 40.6% | 23,073 / 59,724 | |
| 2×2 | 5.46 | 6.53 | top 44.9% | 18,106 / 40,951 | |
| Square-1 | 33.49 | 52.86 | top 56.0% | 3,697 / 6,743 | |
| Pyraminx | 11.25 | 16.54 | top 62.3% | 18,338 / 28,708 | |
| 3×3 one-handed | 1:01.84 | — | early days — 2 solves | 12,763 / 15,683 |
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
- 13 Oct 2024Three personal bests in one day at Berkeley Fall 2024.
- 22 Jun 2024First competition: Bay Area Speedcubin' 63 - Atherton 2024. A 28.18 3×3 single to start from.
Competitions
- Berkeley Fall 2025 · 4 Oct 2025 — 2 personal bests set
- Berkeley Fall 2024 · 13 Oct 2024 — 3 personal bests set
- Bay Area Speedcubin' 63 - Atherton 2024 · 22 Jun 2024
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.
- Shad Al Getany — met in 10 rounds, finished ahead 10 times
- Amahl Weinstein Agrawal — met in 10 rounds, finished ahead once
- Shubhaay Mehta — met in 10 rounds, finished ahead once
Next targets
- A sub-20 3×3 single — 113,584 people have one; it is 0.22 away.
- A sub-5 2×2 single — 73,413 people have one; it is 0.46 away.
Targets move as he improves.