People · New Zealand
Jack Zhang
Clock · top 1.7% of 32,048 all-time · competing since August 2021 · 2021ZHAN51
Jack Zhang has been competing for 5 years. His best event is the Clock: a personal-best single of 3.65, set at Beachside Auckland 2025, puts him in the top 1.7% of the 32,048 people who have ever been ranked in the event, and 15th in New Zealand. Until July 2018, no official Clock solve in the world had been that fast. Across 13 competitions since August 2021, he has put 710 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 66% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 18.55 in August 2021 to 7.76, a 58% improvement. Jack has entered 13 competitions, more competitions than 94% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | New Zealand | |
|---|---|---|---|---|---|
| Clock | 3.65 | 4.48 | top 1.7% | 15 / 303 | |
| 2×2 | 1.42 | 1.81 | top 1.8% | 61 / 1,615 | |
| 3×3 | 7.76 | 8.62 | top 2.4% | 74 / 2,095 | |
| Skewb | 2.69 | 5.02 | top 3.6% | 38 / 666 | |
| Pyraminx | 3.21 | 4.62 | top 4.4% | 77 / 1,141 | |
| Square-1 | 10.99 | 14.23 | top 8.0% | 29 / 251 | |
| 4×4 | 39.36 | 42.90 | top 11.4% | 97 / 722 | |
| Megaminx | 1:06.18 | 1:18.77 | top 13.4% | 55 / 283 | |
| 5×5 | 1:24.08 | 1:34.05 | top 22.5% | 94 / 355 | |
| 6×6 | 3:21.17 | 3:39.54 | top 51.1% | 89 / 149 | |
| 7×7 | 6:37.63 | — | early days — 1 solve | 104 / 126 |
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
- 20 Sep 2025Four personal bests in one day at Beachside Auckland 2025.
- 28 Jun 2024Three personal bests in one day at Auckland Matariki Open 2024.
- 27 Oct 2023Six personal bests in one day at NZ North Island Championship 2023.
- 1 Jul 2023Five personal bests in one day at Auckland Mid-Year Madness 2023.
- 13 May 2023Four personal bests in one day at Auckland Autumn 2023.
- 28 Jan 2023First sub-10 3×3: 9.35 at A New Year in Hamilton 2023.
Competitions
- Beachside Auckland 2025 · 20 Sep 2025 — 4 personal bests set
- Max Speed Milford 2024 · 30 Nov 2024
- Springing into Auckland 2024 · 12 Oct 2024 — 2 personal bests set
- Clauckland 2024 · 13 Jul 2024 — 1 personal best set
- Auckland Matariki Open 2024 · 28 Jun 2024 — 3 personal bests set
- Beachside Auckland 2024 · 6 Apr 2024 — 1 personal best set
- NZ North Island Championship 2023 · 27 Oct 2023 — 6 personal bests set
- Auckland Mid-Year Madness 2023 · 1 Jul 2023 — 5 personal bests set
- Auckland Autumn 2023 · 13 May 2023 — 4 personal bests set
- A New Year in Hamilton 2023 · 28 Jan 2023 — 6 personal bests set
- New Zealand Nationals 2022 · 9 Dec 2022 — 5 personal bests set
- Three Rounds Whangarei 2022 · 16 Jul 2022 — 5 personal bests set
- NZ North Island Championship 2021 · 13 Aug 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.
- Elyas Eyou — met in 150 rounds, finished ahead 5 times
- Levi Eyou — met in 135 rounds, finished ahead 44 times
- Richard Yiheng Tao — met in 130 rounds, finished ahead 5 times
Next targets
- A sub-3 Clock single — 239 people have one; it is 0.65 away.
- A sub-1 2×2 single — 1,032 people have one; it is 0.42 away.
Targets move as he improves.