People · Japan
Kyan Roerdink (ローディンク開按)
3×3 one-handed · top 3.4% of 73,695 all-time · competing since March 2024 · 2024ROER01
Kyan Roerdink (ローディンク開按) has been competing for 2 years. His best event is the 3×3 one-handed: a personal-best single of 12.30, set at CubingUSA Heartland Championship 2025, puts him in the top 3.4% of the 73,695 people who have ever been ranked in the event, and 42nd in Japan. Until January 2010, no official 3×3 one-handed solve in the world had been that fast. Across 12 competitions since March 2024, he has put 277 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 63% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 12.39 in March 2024 to 8.98, a 28% improvement. Kyan has entered twelve competitions, more competitions than 94% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| 3×3 one-handed | 12.30 | 17.04 | top 3.4% | 42 / 529 | |
| 3×3 | 8.98 | 10.24 | top 4.8% | 198 / 3,329 | |
| Pyraminx | 4.04 | 8.58 | top 7.9% | 100 / 688 | |
| 2×2 | 2.79 | 3.89 | top 11.9% | 159 / 1,021 | |
| Skewb | 4.55 | 6.33 | top 14.8% | 74 / 338 | |
| 4×4 | 49.31 | 51.78 | top 23.9% | 247 / 667 | |
| Square-1 | 24.79 | 29.89 | top 38.7% | 130 / 245 | |
| Megaminx | 1:50.53 | 1:54.81 | top 40.7% | 205 / 313 | |
| Clock | 13.48 | 14.60 | top 41.7% | 150 / 263 |
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
- 22 Aug 2025First sub-10 3×3: 9.42 at CubingUSA Heartland Championship 2025.
- 22 Aug 2025Seven personal bests in one day at CubingUSA Heartland Championship 2025.
- 1 Aug 2025Six personal bests in one day at CubingUSA Great Lakes Championship 2025.
- 31 Mar 2024First competition: Tokai Challenge Alpha 2024. A 12.39 3×3 single to start from.
Competitions
- Katano Spring 2026 · 21 Mar 2026 — 1 personal best set
- Tokyo Winter 2025 · 7 Dec 2025 — 1 personal best set
- Kanto Autumn PM 2025 · 11 Oct 2025 — 1 personal best set
- Katano Summer 2025 · 15 Sep 2025 — 1 personal best set
- CubingUSA Heartland Championship 2025 · 22 Aug 2025 — 7 personal bests set
- CubingUSA Great Lakes Championship 2025 · 1 Aug 2025 — 6 personal bests set
- Kanto Spring 2025 · 31 May 2025 — 2 personal bests set
- Ota Spring 2025 · 20 Mar 2025 — 1 personal best set
- Tokyo Open PM Winter 2025 · 16 Feb 2025
- Shonan PM 2024 · 7 Dec 2024 — 1 personal best set
- Land of Lincoln 2024 · 10 Aug 2024
- Tokai Challenge Alpha 2024 · 31 Mar 2024
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.
- Trenton Cuzick — met in 31 rounds, finished ahead 12 times
- Adam Schwenn — met in 27 rounds, finished ahead 12 times
- Taber Siler — met in 27 rounds, finished ahead 7 times
Next targets
- A sub-12 3×3 one-handed single — 2,187 people have one; it is 0.30 away.
- A sub-8 3×3 single — 7,931 people have one; it is 0.98 away.
Targets move as he improves.