People · Japan
Akifumi Sasaki (佐々木彰史)
3×3 · top 3.1% of 288,433 all-time · competing since May 2017 · 2017SASA03
Akifumi Sasaki (佐々木彰史) has been competing for 10 years. His best event is the 3×3: a personal-best single of 8.19, set at Tokyo Autumn 2026, puts him in the top 3.1% of the 288,433 people who have ever been ranked in the event, and 135th in Japan. Until July 2008, no official 3×3 solve in the world had been that fast. Across 24 competitions since May 2017, he has put 415 official solves on the record across 17 events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 61% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 52.58 in May 2017 to 8.19, an 84% improvement. Akifumi has entered 24 competitions, more competitions than 97% 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 | 8.19 | 9.92 | top 3.1% | 135 / 3,360 | |
| 3×3 Fewest Moves | 26 moves | 38.67 | top 6.3% | 33 / 205 | |
| 3×3 blindfolded | 38.53 | 1:07.53 | top 6.4% | 32 / 285 | |
| 3×3 one-handed | 14.55 | 18.39 | top 7.2% | 75 / 539 | |
| 4×4 blindfolded | 3:23.81 | — | top 10.4% | 9 / 81 | |
| 2×2 | 3.06 | 4.47 | top 15.0% | 200 / 1,026 | |
| 4×4 | 43.47 | 51.42 | top 16.4% | 171 / 679 | |
| Square-1 | 17.90 | 22.26 | top 23.2% | 92 / 251 | |
| 5×5 | 1:24.92 | 1:32.54 | top 23.4% | 143 / 426 | |
| Megaminx | 1:24.62 | 1:30.23 | top 24.8% | 143 / 313 | |
| Skewb | 6.26 | 11.39 | top 27.9% | 150 / 354 | |
| Clock | 11.01 | 11.95 | top 30.0% | 115 / 268 | |
| 3×3 Multi-Blind | 9 of 12 cubes · 45:57 | — | top 32.1% | 55 / 128 | |
| Pyraminx | 7.80 | 8.36 | top 34.6% | 348 / 691 | |
| 7×7 | 4:28.64 | 4:57.30 | top 40.7% | 87 / 188 | |
| 6×6 | 3:24.19 | 3:52.38 | top 52.5% | 131 / 209 | |
| 5×5 blindfolded | 18:16.00 | — | top 53.5% | 26 / 50 |
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
- 16 Dec 2023Four personal bests in one day at UCSD Winter 2023.
- 12 Aug 2023Nine personal bests in one day at Rubik's WCA World Championship 2023.
- 4 Mar 2023Four personal bests in one day at Marshall Cubing Spring 2023.
- 23 Oct 2022Three personal bests in one day at Mini Mental Breakdown San Diego 2022.
- 7 Oct 2022Six personal bests in one day at WCC Western Championship 2022.
- 13 Aug 2022Three personal bests in one day at SoCal Silent Spectacular 2022.
Competitions
- Tokyo Autumn 2026 · 17 Oct 2026 — 1 personal best set
- Tokyo BLD Summer 2026 · 25 Jul 2026
- Japan Championship 2026 · 18 Jul 2026 — 2 personal bests set
- Tokyo BLD Spring 2025 · 10 May 2025 — 1 personal best set
- Tokyo Spring AM 2025 · 20 Apr 2025
- UCSD Winter 2023 · 16 Dec 2023 — 4 personal bests set
- Mountain View Multi Madness 2023 · 24 Nov 2023 — 1 personal best set
- Tokyo Challenge VIII 2023 · 4 Nov 2023
- Rubik's WCA World Championship 2023 · 12 Aug 2023 — 9 personal bests set
- Ota Blind Summer 2023 · 8 Jul 2023
- Bay Area Speedcubin' 42 2023 · 18 Mar 2023 — 1 personal best set
- Marshall Cubing Spring 2023 · 4 Mar 2023 — 4 personal bests set
- Winter WestSide Events 2022 · 10 Dec 2022 — 1 personal best set
- Mini Mental Breakdown San Diego 2022 · 23 Oct 2022 — 3 personal bests set
- FMC Fall San Diego 2022 · 22 Oct 2022
- WCC Western Championship 2022 · 7 Oct 2022 — 6 personal bests set
- Irvine Summer 2022 · 28 Aug 2022 — 1 personal best set
- SoCal Silent Spectacular 2022 · 13 Aug 2022 — 3 personal bests set
- Blind Is Back LA 2022 · 26 Jun 2022 — 3 personal bests set
- Bay Area Speedcubin' 32 LIVE - SSF 2022 · 22 May 2022 — 1 personal best set
- A Bruin Cube Day 2022 · 8 May 2022 — 1 personal best set
- San Diego Spring 2022 · 16 Apr 2022
- Cal Poly SLO Spring 2022 · 19 Mar 2022 — 1 personal best set
- Meguro 2017 · 5 May 2017
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.
- Graham Siggins — met in 80 rounds, finished ahead 9 times
- Michael Young — met in 61 rounds, finished ahead 23 times
- Kyeongmin Choi (최경민) — met in 61 rounds, finished ahead 5 times
Next targets
- A sub-8 3×3 single — 8,101 people have one; it is 0.19 away.
- A sub-30 3×3 blindfolded single — 511 people have one; it is 8.53 away.
Targets move as he improves.