People · Japan
Ryoma Kawamichi (川道諒真)
2×2 · top 1.6% of 189,179 all-time · competing since December 2022 · 2022KAWA05
Ryoma Kawamichi (川道諒真) has been competing for 4 years. His best event is the 2×2: a personal-best single of 1.35, set at Singapore Mini 2023, puts him in the top 1.6% of the 189,179 people who have ever been ranked in the event, and 16th in Japan. Until November 2008, no official 2×2 solve in the world had been that fast. Across 16 competitions since December 2022, he has put 621 official solves on the record across six events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 55% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 12.64 in December 2022 to 7.40, a 41% improvement. Ryoma has entered 16 competitions, more competitions than 96% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| 2×2 | 1.35 | 2.51 | top 1.6% | 16 / 1,026 | |
| 3×3 | 7.40 | 8.74 | top 1.9% | 81 / 3,360 | |
| Pyraminx | 2.69 | 4.00 | top 2.7% | 39 / 691 | |
| Skewb | 2.71 | 4.30 | top 3.7% | 16 / 354 | |
| 3×3 one-handed | 16.42 | 20.03 | top 11.3% | 107 / 539 | |
| 4×4 | 42.50 | 49.93 | top 15.1% | 154 / 679 |
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
- 19 Jun 2025Four personal bests in one day at Philippine Championship 2025.
- 5 Jul 2024Four personal bests in one day at Philippine Championship 2024.
- 30 Sep 2023First sub-10 3×3: 9.49 at IUKL SOR 2023.
- 30 Sep 2023Three personal bests in one day at IUKL SOR 2023.
- 9 Sep 2023Four personal bests in one day at Singapore Mini 2023.
- 16 Dec 2022First competition: Indonesian Championship 2022. A 12.64 3×3 single to start from.
Competitions
- Singapore Kempinski Open 2026 · 17 Oct 2026 — 1 personal best set
- Mofunland Speedcubing Singapore 2026 · 5 Sep 2026 — 2 personal bests set
- GAN Philippine Championship 2026 · 9 Jul 2026 — 1 personal best set
- Singapore Championship 2026 · 20 Feb 2026 — 1 personal best set
- Penang Cube Masters 2025 · 15 Nov 2025 — 1 personal best set
- PHS Johor Cube Open 2025 · 28 Sep 2025 — 1 personal best set
- Philippine Championship 2025 · 19 Jun 2025 — 4 personal bests set
- Singapore Cubing Mayday 2025 · 25 May 2025 — 1 personal best set
- Singapore Championship 2025 · 7 Feb 2025 — 1 personal best set
- Mofunland Speedcubing Singapore 2024 · 31 Aug 2024 — 2 personal bests set
- Singapore Sprint 2024 · 11 Aug 2024 — 2 personal bests set
- Philippine Championship 2024 · 5 Jul 2024 — 4 personal bests set
- MYHM Singapore Championship 2024 · 2 Feb 2024 — 2 personal bests set
- IUKL SOR 2023 · 30 Sep 2023 — 3 personal bests set
- Singapore Mini 2023 · 9 Sep 2023 — 4 personal bests set
- Indonesian Championship 2022 · 16 Dec 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.
- Ng Jia Quan (黄佳铨) — met in 65 rounds, finished ahead 7 times
- Tristan Chua Yong — met in 52 rounds, finished ahead 6 times
- Aiden Lim Tze Choon — met in 47 rounds, finished ahead 21 times
Next targets
- A sub-1 2×2 single — 1,050 people have one; it is 0.35 away.
- A sub-6 3×3 single — 1,419 people have one; it is 1.40 away.
Targets move as he improves.