People · Japan
Shoi Hamaguchi (濱口翔偉)
Clock · top 0.61% of 32,048 all-time · competing since September 2023 · 2023HAMA03
Shoi Hamaguchi (濱口翔偉) has been competing for 3 years. His best event is the Clock: a personal-best single of 2.88, set at Tokyo Autumn 2025, puts him in the top 0.61% of the 32,048 people who have ever been ranked in the event, and 1st in Japan. Until May 2021, no official Clock solve in the world had been that fast. Across 14 competitions since September 2023, he has put 135 official solves on the record across two events. His Clock best has come down from 4.42 in September 2023 to 2.88, a 35% improvement. Shoi has entered 14 competitions, more competitions than 95% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| Clock | 2.88 | 3.47 | top 0.61% | 1 / 263 | |
| Megaminx | 40.21 | 44.28 | top 1.6% | 11 / 313 |
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, Clock. Faster is higher — the axis is the right way up.
The story so far
- 9 Sep 2023First competition: Tokai Open 2023.
Competitions
- Kansai Mega Day 2026 · 1 Aug 2026
- Japan Championship 2026 · 18 Jul 2026
- Tokyo Summer 2026 · 13 Jun 2026
- Kanto Spring 2026 · 17 May 2026 — 1 personal best set
- Otsu Biwako Spring 2026 · 11 Apr 2026
- Ota Winter 2026 · 25 Jan 2026
- Taiwan Championship 2025 · 19 Dec 2025
- Kansai Mega Day 2025 · 2 Nov 2025 — 1 personal best set
- Kanto Autumn PM 2025 · 11 Oct 2025
- Tokyo Autumn 2025 · 23 Sep 2025 — 1 personal best set
- Tokai Spring 2025 · 12 Apr 2025
- Tokai Challenge Gamma 2024 · 31 Mar 2024 — 1 personal best set
- Ota Blind New Year 2024 · 20 Jan 2024
- Tokai Open 2023 · 9 Sep 2023 — 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.
- Yusuke Takada (高田祐介) — met in 18 rounds, finished ahead 6 times
- Kantaro Sakamoto (坂本貫太郎) — met in 17 rounds, finished ahead 15 times
- Wataru Takamiya (髙宮径) — met in 17 rounds, finished ahead 5 times
Next targets
- A sub-2 Clock single — 17 people have one; it is 0.88 away.
- A sub-40 Megaminx single — 557 people have one; it is 0.21 away.
Targets move as he improves.