People · Singapore
Koo Jia Jun Cayden
2×2 · top 5.0% of 186,767 all-time · competing since June 2023 · 2023CAYD01
Koo Jia Jun Cayden has been competing for 3 years. His best event is the 2×2: a personal-best single of 2.04, set at Mofunland Speedcubing Singapore 2024, puts him in the top 5.0% of the 186,767 people who have ever been ranked in the event, and 86th in Singapore. Until February 2008, no official 2×2 solve in the world had been that fast. Across 5 competitions since June 2023, he has put 81 official solves on the record across five events. His 3×3 best has come down from 25.64 in June 2023 to 12.51, a 51% improvement. Koo has entered five competitions, more competitions than 83% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Singapore | |
|---|---|---|---|---|---|
| 2×2 | 2.04 | 4.31 | top 5.0% | 86 / 1,053 | |
| Pyraminx | 4.34 | 7.57 | top 9.4% | 91 / 645 | |
| 3×3 | 12.51 | 13.57 | top 15.7% | 365 / 1,546 | |
| 3×3 one-handed | 23.46 | 28.73 | top 30.0% | 205 / 460 | |
| Skewb | 6.62 | 11.77 | top 30.6% | 142 / 353 |
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
- 31 Aug 2024Three personal bests in one day at Mofunland Speedcubing Singapore 2024.
- 2 Feb 2024First sub-20 3×3: 13.16 at MYHM Singapore Championship 2024.
- 2 Feb 2024First sub-15 3×3: 13.16 at MYHM Singapore Championship 2024.
- 3 Jun 2023First competition: Singapore AMK CC Cubing A 2023. A 25.64 3×3 single to start from.
Competitions
- Singapore Kempinski Rubik's 50th Anniversary 2024 · 26 Oct 2024 — 1 personal best set
- Mofunland Speedcubing Singapore 2024 · 31 Aug 2024 — 3 personal bests set
- Singapore Mini 2024 · 25 May 2024 — 1 personal best set
- MYHM Singapore Championship 2024 · 2 Feb 2024 — 2 personal bests set
- Singapore AMK CC Cubing A 2023 · 3 Jun 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.
- Edward Lim — met in 17 rounds, finished ahead once
- Lee Jun Yee Allen (李俊毅) — met in 17 rounds, never finished ahead
- Gabriel Neo Jun Yi — met in 17 rounds, never finished ahead
Next targets
- A sub-2 2×2 single — 8,848 people have one; it is 0.04 away.
- A sub-4 Pyraminx single — 9,892 people have one; it is 0.34 away.
Targets move as he improves.