People · Singapore
Ezra Zachary Chou
3×3 · top 8.1% of 288,433 all-time · competing since March 2024 · 2024CHOU04
Ezra Zachary Chou has been competing for 3 years. His best event is the 3×3: a personal-best single of 10.19, set at Mofunland Speedcubing Singapore 2024, puts him in the top 8.1% of the 288,433 people who have ever been ranked in the event, and 217th in Singapore. Until May 2007, no official 3×3 solve in the world had been that fast. Across 14 competitions since March 2024, he has put 149 official solves on the record across five events. Solve to solve, his 3×3 times vary about 14% around a typical one; 63% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 13.25 in March 2024 to 10.19, a 23% improvement. Ezra has entered 14 competitions, more competitions than 95% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Singapore | |
|---|---|---|---|---|---|
| 3×3 | 10.19 | 11.90 | top 8.1% | 217 / 1,559 | |
| 2×2 | 3.20 | 7.12 | top 16.7% | 223 / 1,064 | |
| Pyraminx | 9.04 | 12.50 | top 45.2% | 353 / 651 | |
| 4×4 | 2:12.35 | — | top 86.8% | 427 / 466 | |
| Megaminx | 5:41.32 | — | early days — 2 solves | 197 / 199 |
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
- 22 Jun 2024Four personal bests in one day at Johor Cube Open 2024.
- 16 Mar 2024First competition: Singapore Newcomers 2024. A 13.25 3×3 single to start from.
Competitions
- Mofunland Speedcubing Singapore 2025 · 6 Sep 2025
- Singapore Mofunland Cruise 2025 · 26 Jun 2025
- Singapore Championship 2025 · 7 Feb 2025
- Singapore Freeze 2024 · 7 Dec 2024
- Cool Down Singapore 2024 · 9 Nov 2024
- Rubik's WCA Asian Championship 2024 · 1 Nov 2024 — 1 personal best set
- Hublife Speedcubing 2024 · 28 Sep 2024 — 1 personal best set
- Mofunland Speedcubing Singapore 2024 · 31 Aug 2024 — 1 personal best set
- Malaysia 15th Anniversary Championship 2024 · 27 Jul 2024
- Singapore Hougang Open 2024 · 20 Jul 2024 — 1 personal best set
- Johor Cube Open 2024 · 22 Jun 2024 — 4 personal bests set
- Singapore 50 and Counting 2024 · 8 Jun 2024
- Singapore Mini 2024 · 25 May 2024
- Singapore Newcomers 2024 · 16 Mar 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.
- Nigel Phang — met in 25 rounds, never finished ahead
- Alexius Goh Jun Ying — met in 24 rounds, finished ahead twice
- Ng Jia Quan (黄佳铨) — met in 23 rounds, never finished ahead
Next targets
- A sub-10 3×3 single — 21,606 people have one; it is 0.19 away.
- A sub-3 2×2 single — 27,049 people have one; it is 0.20 away.
Targets move as he improves.