People · Republic of Korea
Choi Joowon
Pyraminx · top 12.6% of 129,321 all-time · competing since March 2025 · 2025JOOW01
Choi Joowon has been competing for a year. His best event is the Pyraminx: a personal-best single of 4.91, set at Mofunland Speedcubing Singapore 2026, puts him in the top 12.6% of the 129,321 people who have ever been ranked in the event, and 191st in Republic of Korea. Across 10 competitions since March 2025, he has put 118 official solves on the record across six events. His 2×2 best has come down from 9.13 in March 2025 to 3.00, a 67% improvement. Choi has entered ten competitions, more competitions than 92% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Republic of Korea | |
|---|---|---|---|---|---|
| Pyraminx | 4.91 | 6.93 | top 12.6% | 191 / 1,271 | |
| 2×2 | 3.00 | 4.69 | top 14.2% | 427 / 2,319 | |
| Skewb | 7.59 | 8.98 | top 38.2% | 386 / 854 | |
| Clock | 13.01 | 14.73 | top 39.7% | 264 / 536 | |
| 3×3 | 28.64 | 33.39 | top 60.1% | 2,980 / 4,352 | |
| Square-1 | 47.87 | — | early days — 3 solves | 296 / 371 |
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
- 5 Sep 2026First sub-30 3×3: 28.64 at Mofunland Speedcubing Singapore 2026.
- 5 Sep 2026Three personal bests in one day at Mofunland Speedcubing Singapore 2026.
- 2 May 2026Three personal bests in one day at Singapore Polytechnic Sprint 2026.
- 22 Mar 2025First competition: Singapore Newcomers 2025.
Competitions
- Mofunland Speedcubing Singapore 2026 · 5 Sep 2026 — 3 personal bests set
- NUS Clock Clash 2026 · 6 Jun 2026
- Singapore Polytechnic Sprint 2026 · 2 May 2026 — 3 personal bests set
- Mid March Singapore 2026 · 15 Mar 2026
- Back to Downtown Singapore 2026 · 8 Mar 2026
- Suwon Summer 2025 · 13 Jul 2025 — 1 personal best set
- Please No Tips Singapore June 2025 · 15 Jun 2025 — 2 personal bests set
- Singapore Cubing Mayday 2025 · 25 May 2025 — 2 personal bests set
- Singapore Mid April 2025 · 20 Apr 2025 — 1 personal best set
- Singapore Newcomers 2025 · 22 Mar 2025
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.
- Reyansh Sameer Chawan (रेयांश समीर चव्हाण) — met in 24 rounds, finished ahead once
- Luis Tan Hong Yi (陈宏溢) — met in 23 rounds, finished ahead once
- Ng Jia Quan (黄佳铨) — met in 23 rounds, never finished ahead
Next targets
- A sub-4 Pyraminx single — 9,892 people have one; it is 0.91 away.
- A sub-2 2×2 single — 8,848 people have one; it is 1.00 away.
Targets move as he improves.