People · Japan
Masaaki Kobayashi (小林誠明)
4×4 · top 33.7% of 83,917 all-time · competing since February 2023 · 2023KOBA02
Masaaki Kobayashi (小林誠明) has been competing for 4 years. His best event is the 4×4: a personal-best single of 57.48, set at Kansai Parity Party 2025, puts him in the top 33.7% of the 83,917 people who have ever been ranked in the event, and 332nd in Japan. Across 3 competitions since February 2023, he has put 26 official solves on the record across four events. His 4×4 best has come down from 1:13.01 in July 2024 to 57.48, a 21% improvement. Masaaki has entered three competitions, more competitions than 69% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| 4×4 | 57.48 | 1:18.68 | top 33.7% | 332 / 667 | |
| 3×3 | 20.44 | 24.04 | top 41.2% | 1,528 / 3,329 | |
| Square-1 | 32.57 | 49.13 | top 54.3% | 164 / 245 | |
| 6×6 | 7:08.33 | — | early days — 1 solve | 201 / 209 |
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, 4×4. Faster is higher — the axis is the right way up.
The story so far
- 12 Feb 2023First competition: Tokyo Challenge Winter B 2023. A 29.38 3×3 single to start from.
Competitions
- Kansai Parity Party 2025 · 24 Aug 2025 — 1 personal best set
- Katano Milky Way 2024 · 7 Jul 2024 — 1 personal best set
- Tokyo Challenge Winter B 2023 · 12 Feb 2023
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 6 rounds, finished ahead once
- Toshio Hoshino (星野利夫) — met in 5 rounds, finished ahead twice
- Takayuki Tanaka (田中隆喜) — met in 5 rounds, never finished ahead
Next targets
- A sub-50 4×4 single — 20,746 people have one; it is 7.48 away.
- A sub-20 3×3 single — 113,584 people have one; it is 0.44 away.
Targets move as he improves.