People · China
Clark Xu
Skewb · top 1.7% of 73,281 all-time · competing since December 2022 · 2022XUCL01
Clark Xu has been competing for 4 years. His best event is the Skewb: a personal-best single of 2.12, set at NZ North Island Championship 2023, puts him in the top 1.7% of the 73,281 people who have ever been ranked in the event, and 78th in China. Until December 2014, no official Skewb solve in the world had been that fast. Across 12 competitions since December 2022, he has put 450 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 18% around a typical one; 97% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. That figure sets aside his 6 DNFs. His 3×3 best has come down from 20.42 in December 2022 to 8.86, a 57% improvement. Clark has entered twelve 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 | China | |
|---|---|---|---|---|---|
| Skewb | 2.12 | 10.00 | top 1.7% | 78 / 5,004 | |
| 2×2 | 1.96 | 4.27 | top 4.5% | 606 / 15,796 | |
| 3×3 | 8.86 | 11.46 | top 4.5% | 1,735 / 28,153 | |
| Clock | 5.14 | 6.10 | top 4.8% | 88 / 1,843 | |
| Pyraminx | 5.23 | 8.27 | top 14.6% | 1,727 / 10,224 | |
| 3×3 one-handed | 18.88 | 23.63 | top 17.5% | 1,724 / 5,922 | |
| 4×4 | 53.74 | 1:06.64 | top 29.2% | 3,011 / 5,926 | |
| Square-1 | 27.92 | 33.82 | top 45.4% | 777 / 1,362 |
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
- 14 Jun 2025Four personal bests in one day at Milford Winter Warm Up 2025.
- 10 May 2025First sub-10 3×3: 8.86 at Puzzling Papatoetoe 2025.
- 10 May 2025Four personal bests in one day at Puzzling Papatoetoe 2025.
- 20 Jan 2024Five personal bests in one day at A New Year in Auckland 2024.
- 1 Jul 2023First sub-15 3×3: 14.50 at Auckland Mid-Year Madness 2023.
- 1 Jul 2023Three personal bests in one day at Auckland Mid-Year Madness 2023.
Competitions
- New Zealand Nationals 2025 · 12 Dec 2025 — 2 personal bests set
- Beachside Auckland 2025 · 20 Sep 2025
- Milford Winter Warm Up 2025 · 14 Jun 2025 — 4 personal bests set
- Puzzling Papatoetoe 2025 · 10 May 2025 — 4 personal bests set
- Sqauckland 2025 · 22 Feb 2025 — 2 personal bests set
- Max Speed Milford 2024 · 30 Nov 2024 — 1 personal best set
- New Zealand Cubing Decathlon 2024 · 28 Sep 2024 — 1 personal best set
- A New Year in Auckland 2024 · 20 Jan 2024 — 5 personal bests set
- NZ North Island Championship 2023 · 27 Oct 2023 — 1 personal best set
- Auckland Mid-Year Madness 2023 · 1 Jul 2023 — 3 personal bests set
- Auckland Autumn 2023 · 13 May 2023 — 5 personal bests set
- New Zealand Nationals 2022 · 9 Dec 2022
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.
- Brandon Harris — met in 95 rounds, finished ahead 4 times
- Elyas Eyou — met in 95 rounds, finished ahead twice
- Levi Eyou — met in 92 rounds, finished ahead once
Next targets
- A sub-2 Skewb single — 1,013 people have one; it is 0.12 away.
- A sub-1 2×2 single — 1,032 people have one; it is 0.96 away.
Targets move as he improves.