People · Japan
Roberto Atsuhiro Sanada (真田ロベルト敦宏)
3×3 · top 12.5% of 284,439 all-time · competing since May 2025 · 2025SANA01
Roberto Atsuhiro Sanada (真田ロベルト敦宏) has been competing for a year. His best event is the 3×3: a personal-best single of 11.60, set at Tokyo Spring 2026, puts him in the top 12.5% of the 284,439 people who have ever been ranked in the event, and 532nd in Japan. Across 9 competitions since May 2025, he has put 68 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 16% around a typical one, an early reading from 7 counted rounds. That figure sets aside his 2 DNFs. His 3×3 best has come down from 18.98 in May 2025 to 11.60, a 39% improvement. Roberto 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 | Japan | |
|---|---|---|---|---|---|
| 3×3 | 11.60 | 14.26 | top 12.5% | 532 / 3,329 | |
| 2×2 | 3.78 | 4.41 | top 23.7% | 301 / 1,021 | |
| Pyraminx | 6.94 | 10.89 | top 27.4% | 285 / 688 | |
| 3×3 Fewest Moves | 43 moves | 52.67 | early days — 3 solves | 139 / 201 | |
| Clock | 18.92 | 31.87 | top 61.5% | 212 / 263 | |
| Megaminx | 3:13.55 | — | early days — 1 solve | 282 / 313 | |
| Square-1 | 1:30.84 | — | early days — 3 solves | 240 / 245 |
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
- 30 Aug 2025First sub-15 3×3: 12.26 at Kanto Summer AM 2025.
- 31 May 2025First competition: Kanto Spring 2025. A 18.98 3×3 single to start from.
Competitions
- Shimonoseki Summer 2026 · 9 Aug 2026
- Tokyo Summer 2026 · 13 Jun 2026
- Kanto Spring 2026 · 17 May 2026 — 1 personal best set
- Tokyo FMC Spring 2026 · 12 Apr 2026
- Tokyo Spring 2026 · 5 Apr 2026 — 2 personal bests set
- Tokyo BLD Spring 2026 · 29 Mar 2026
- Kanto Autumn AM 2025 · 11 Oct 2025
- Kanto Summer AM 2025 · 30 Aug 2025 — 1 personal best set
- Kanto Spring 2025 · 31 May 2025
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.
- Takumi Kato (加藤匠) — met in 16 rounds, never finished ahead
- Naoyuki Takahashi (高橋直之) — met in 15 rounds, finished ahead 8 times
- Takuma Shirahase (白波瀬拓磨) — met in 15 rounds, finished ahead 5 times
Next targets
- A sub-10 3×3 single — 21,172 people have one; it is 1.60 away.
- A sub-3 2×2 single — 26,570 people have one; it is 0.78 away.
Targets move as he improves.