People · Hong Kong, China
Zachary Ip Pak Tou (葉柏圖)
2×2 · top 2.4% of 189,179 all-time · competing since March 2023 · 2023TOUZ01
Zachary Ip Pak Tou (葉柏圖) has been competing for 4 years. His best event is the 2×2: a personal-best single of 1.54, set at HKRCU 20th Anniversary 2025, puts him in the top 2.4% of the 189,179 people who have ever been ranked in the event, and 40th in Hong Kong, China. Until November 2008, no official 2×2 solve in the world had been that fast. Across 8 competitions since March 2023, he has put 211 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 92% of the 36,406 competitors with ten or more counted rounds. His 2×2 best has come down from 2.70 in March 2023 to 1.54, a 43% improvement. Zachary has entered eight competitions, more competitions than 90% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Hong Kong, China | |
|---|---|---|---|---|---|
| 2×2 | 1.54 | 2.50 | top 2.4% | 40 / 880 | |
| 3×3 | 7.92 | 9.70 | top 2.7% | 79 / 1,424 | |
| 4×4 | 42.78 | 47.08 | top 15.5% | 127 / 447 | |
| 3×3 one-handed | 18.37 | 23.54 | top 16.2% | 110 / 384 | |
| Skewb | 5.18 | 8.15 | top 19.6% | 83 / 293 | |
| Pyraminx | 6.38 | 9.66 | top 22.9% | 152 / 448 | |
| Megaminx | 1:30.38 | — | early days — 2 solves | 81 / 169 | |
| 3×3 blindfolded | 3:17.80 | — | early days — 2 solves | 51 / 67 |
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
- 20 Sep 2025Three personal bests in one day at HKRCU 20th Anniversary 2025.
- 31 Aug 2024Three personal bests in one day at Hong Kong Cube Day 2024.
- 31 Mar 2024Four personal bests in one day at Welcome Back Hong Kong 2024.
- 21 Oct 2023First sub-10 3×3: 9.81 at Hong Kong Championship 2023.
- 21 Oct 2023Four personal bests in one day at Hong Kong Championship 2023.
- 4 Mar 2023First competition: Hong Kong Cube Day 2023. A 11.14 3×3 single to start from.
Competitions
- Hong Kong Cube Day 2026 · 12 Sep 2026 — 1 personal best set
- Hong Kong Championship 2025 · 15 Nov 2025
- HKRCU 20th Anniversary 2025 · 20 Sep 2025 — 3 personal bests set
- Hong Kong Championship 2024 · 16 Nov 2024
- Hong Kong Cube Day 2024 · 31 Aug 2024 — 3 personal bests set
- Welcome Back Hong Kong 2024 · 31 Mar 2024 — 4 personal bests set
- Hong Kong Championship 2023 · 21 Oct 2023 — 4 personal bests set
- Hong Kong Cube Day 2023 · 4 Mar 2023
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.
- Andy Mok Man Cheuk (莫文卓) — met in 44 rounds, finished ahead 5 times
- Wan Chun Man (尹俊文) — met in 41 rounds, finished ahead 20 times
- Timothy Kong Wing Sum (江永琛) — met in 41 rounds, finished ahead 4 times
Next targets
- A sub-1 2×2 single — 1,050 people have one; it is 0.54 away.
- A sub-6 3×3 single — 1,419 people have one; it is 1.92 away.
Targets move as he improves.