People · Indonesia
Rafael Koroh
3×3 · top 1.2% of 284,439 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 284,439 people who have ever been ranked in the event, and 48th in Indonesia. Until November 2010, no official 3×3 solve in the world had been that fast. Across 9 competitions since September 2022, he has put 212 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 35,811 competitors with ten or more counted rounds hold a tighter spread. That figure sets aside his 4 DNFs. His 3×3 best has come down from 18.08 in September 2022 to 6.87, a 62% improvement. Rafael has entered nine competitions, more competitions than 91% 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% | 48 / 4,145 | |
| 3×3 one-handed | 14.70 | 19.14 | top 7.5% | 86 / 1,441 | |
| 2×2 | 2.64 | 4.35 | top 10.3% | 242 / 2,889 | |
| Pyraminx | 5.95 | 7.22 | top 19.6% | 368 / 1,643 | |
| 4×4 | 48.71 | 55.87 | top 23.0% | 310 / 1,479 |
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
- 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 41 rounds, finished ahead 15 times
- Cendy Cahyo Rahmat — met in 37 rounds, finished ahead 16 times
- Ruben Jeremy Alamsjah — met in 32 rounds, finished ahead 8 times
Next targets
- A sub-6 3×3 single — 1,376 people have one; it is 0.87 away.
- A sub-12 3×3 one-handed single — 2,187 people have one; it is 2.70 away.
Targets move as he improves.