People · Indonesia
Rafael Koroh
3×3 · top 1.2% of 288,433 all-time · competing since September 2022 · 2022KORO02
Rafael Koroh has been competing for 4 years. His best event is the 3×3: a personal-best single of 6.87, set at Jawa Timur Open 2026, puts him in the top 1.2% of the 288,433 people who have ever been ranked in the event, and 49th in Indonesia. Until November 2010, no official 3×3 solve in the world had been that fast. Across 10 competitions since September 2022, he has put 236 official solves on the record across five events. Solve to solve, his 3×3 times vary about 15% around a typical one; 83% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. That figure sets aside his 5 DNFs. His 3×3 best has come down from 18.08 in September 2022 to 6.87, a 62% improvement. Rafael 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 | Indonesia | |
|---|---|---|---|---|---|
| 3×3 | 6.87 | 8.47 | top 1.2% | 49 / 4,197 | |
| 3×3 one-handed | 14.70 | 19.14 | top 7.6% | 88 / 1,445 | |
| Pyraminx | 4.06 | 5.58 | top 8.0% | 138 / 1,669 | |
| 2×2 | 2.64 | 4.35 | top 10.4% | 250 / 2,912 | |
| 4×4 | 48.71 | 55.87 | top 23.1% | 314 / 1,493 |
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
- 15 Feb 2025Three personal bests in one day at PSKG Premiere Cubing 2025.
- 7 Sep 2024First sub-15 3×3: 10.20 at Karawang Open 2024.
- 7 Sep 2024First sub-10 3×3: 9.55 at Karawang Open 2024.
- 17 Sep 2022First competition: Taman Anggrek Speedcubing A 2022. A 18.08 3×3 single to start from.
Competitions
- Balam Cubes Bekasi Comeback 2026 · 26 Sep 2026 — 1 personal best set
- Bali Discovery Speedcubing Master 2026 · 27 Jun 2026
- Jawa Timur Open 2026 · 20 Jun 2026 — 2 personal bests set
- Balam Cubes Baywalk Sides 2025 · 15 Nov 2025 — 2 personal bests set
- Balam Cubes Jakarta Masters 2025 · 2 Aug 2025 — 2 personal bests set
- Hublife Speedcubing 2025 · 22 Mar 2025 — 2 personal bests set
- PSKG Premiere Cubing 2025 · 15 Feb 2025 — 3 personal bests set
- Rapid Academy Indonesian Championship 2024 · 20 Dec 2024 — 1 personal best set
- Karawang Open 2024 · 7 Sep 2024 — 2 personal bests set
- Taman Anggrek Speedcubing A 2022 · 17 Sep 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.
- Mark Louis Tan (陈小龙) — met in 46 rounds, finished ahead 16 times
- Cendy Cahyo Rahmat — met in 41 rounds, finished ahead 18 times
- Naufal Hadyan Mahardika — met in 35 rounds, finished ahead 12 times
Next targets
- A sub-6 3×3 single — 1,419 people have one; it is 0.87 away.
- A sub-12 3×3 one-handed single — 2,239 people have one; it is 2.70 away.
Targets move as he improves.