People · Japan
Seiya Matsuyama (松山聖哉)
Megaminx · top 0.72% of 34,786 all-time · competing since February 2024 · 2024MATS01
Seiya Matsuyama (松山聖哉) has been competing for 3 years. His best event is the Megaminx: a personal-best single of 35.66, set at Japan Championship 2026, puts him in the top 0.72% of the 34,786 people who have ever been ranked in the event, and 5th in Japan. Until July 2016, no official Megaminx solve in the world had been that fast. Across 7 competitions since February 2024, he has put 153 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 12% around a typical one, an early reading from 7 counted rounds. His Megaminx best has come down from 56.33 in February 2024 to 35.66, a 37% improvement. Seiya has entered seven competitions, more competitions than 88% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| Megaminx | 35.66 | 39.81 | top 0.72% | 5 / 313 | |
| 3×3 | 9.11 | 10.13 | top 5.1% | 211 / 3,329 | |
| 4×4 | 33.43 | 37.09 | top 5.3% | 63 / 667 | |
| 5×5 | 1:03.77 | 1:11.37 | top 7.6% | 51 / 420 | |
| 3×3 one-handed | 15.45 | 21.80 | top 9.1% | 87 / 529 | |
| Square-1 | 13.57 | 22.72 | top 13.1% | 55 / 245 | |
| 6×6 | 2:08.22 | 2:17.53 | top 14.6% | 45 / 209 | |
| Pyraminx | 5.98 | 6.76 | top 19.9% | 217 / 688 | |
| Skewb | 5.55 | 6.38 | top 22.3% | 115 / 338 |
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, Megaminx. Faster is higher — the axis is the right way up.
The story so far
- 21 Mar 2026First sub-10 3×3: 9.11 at Katano Spring 2026.
- 2 Nov 2025Three personal bests in one day at Kansai Mega Day 2025.
- 20 Mar 2025Three personal bests in one day at Ota Spring 2025.
- 10 Feb 2024First competition: Hiroshima Winter 2024. A 10.75 3×3 single to start from.
Competitions
- Kansai Mega Day 2026 · 1 Aug 2026
- Japan Championship 2026 · 18 Jul 2026 — 2 personal bests set
- Kanto Spring 2026 · 17 May 2026 — 1 personal best set
- Katano Spring 2026 · 21 Mar 2026 — 2 personal bests set
- Kansai Mega Day 2025 · 2 Nov 2025 — 3 personal bests set
- Ota Spring 2025 · 20 Mar 2025 — 3 personal bests set
- Hiroshima Winter 2024 · 10 Feb 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.
- Kantaro Sakamoto (坂本貫太郎) — met in 29 rounds, finished ahead 17 times
- Yusuke Takada (高田祐介) — met in 27 rounds, finished ahead 8 times
- Takumi Kato (加藤匠) — met in 26 rounds, finished ahead 15 times
Next targets
- A sub-30 Megaminx single — 75 people have one; it is 5.66 away.
- A sub-8 3×3 single — 7,931 people have one; it is 1.11 away.
Targets move as he improves.