People · Australia
Jun Sasagawa (笹川純)
Skewb · top 0.41% of 73,281 all-time · competing since August 2014 · 2014SASA01
Jun Sasagawa (笹川純) has been competing for 12 years. His best event is the Skewb: a personal-best single of 1.47, set at WCA World Championship 2019, puts him in the top 0.41% of the 73,281 people who have ever been ranked in the event, and 22nd in Australia. Until October 2015, no official Skewb solve in the world had been that fast. Across 16 competitions since August 2014, he has put 600 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 72% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 12.55 in August 2014 to 8.47, a 33% improvement. Jun 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 | Australia | |
|---|---|---|---|---|---|
| Skewb | 1.47 | 4.81 | top 0.41% | 22 / 3,534 | |
| 3×3 | 8.47 | 10.03 | top 3.7% | 349 / 11,709 | |
| 2×2 | 2.53 | 3.66 | top 9.2% | 692 / 8,567 | |
| 4×4 | 41.36 | 47.71 | top 13.7% | 340 / 3,051 | |
| Pyraminx | 6.94 | 8.15 | top 27.4% | 1,420 / 5,993 | |
| 3×3 one-handed | 23.54 | 29.48 | top 30.2% | 688 / 2,659 | |
| 5×5 | 1:53.73 | 2:08.32 | top 45.2% | 612 / 1,356 | |
| Square-1 | 36.17 | 47.87 | top 60.1% | 590 / 899 |
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
- 11 Jul 2019Four personal bests in one day at WCA World Championship 2019.
- 17 Jun 2017First sub-10 3×3: 9.55 at Sydney Winter 2017.
- 17 Dec 2016Four personal bests in one day at Sydney Championship 2016.
- 20 Aug 2016Four personal bests in one day at Australian Nationals 2016.
- 4 Oct 2014Five personal bests in one day at Sapporo Open 2014.
- 16 Aug 2014First competition: Australian Nationals 2014. A 12.55 3×3 single to start from.
Competitions
- Rubik's WCA World Championship 2025 · 3 Jul 2025 — 1 personal best set
- Tramsheds III: August Saturday 2024 · 24 Aug 2024
- Katano Milky Way 2024 · 7 Jul 2024 — 1 personal best set
- SBU Fall 2019 · 23 Nov 2019 — 1 personal best set
- WCA World Championship 2019 · 11 Jul 2019 — 4 personal bests set
- Sydney Championship 2017 · 16 Dec 2017
- Sydney Winter 2017 · 17 Jun 2017 — 1 personal best set
- Sydney Championship 2016 · 17 Dec 2016 — 4 personal bests set
- Australian Nationals 2016 · 20 Aug 2016 — 4 personal bests set
- Sydney Autumn 2016 · 8 May 2016 — 2 personal bests set
- Canberra Autumn 2015 · 9 May 2015 — 2 personal bests set
- Sydney Autumn 2015 · 2 May 2015 — 2 personal bests set
- Niddrie 2014 · 14 Dec 2014 — 1 personal best set
- Sydney Spring 2014 · 23 Nov 2014 — 2 personal bests set
- Sapporo Open 2014 · 4 Oct 2014 — 5 personal bests set
- Australian Nationals 2014 · 16 Aug 2014 — 1 personal best set
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.
- Kirt Protacio — met in 78 rounds, finished ahead 21 times
- Jayden McNeill — met in 71 rounds, never finished ahead
- Hugo Adams — met in 68 rounds, finished ahead 30 times
Next targets
- A sub-1 Skewb single — 35 people have one; it is 0.47 away.
- A sub-8 3×3 single — 7,931 people have one; it is 0.47 away.
Targets move as he improves.