People · Japan
Haruki Doi (土居晴輝)
3×3 · top 12.0% of 284,439 all-time · competing since February 2023 · 2023DOIH01
Haruki Doi (土居晴輝) has been competing for 4 years. His best event is the 3×3: a personal-best single of 11.45, set at Tokyo Summer 2025, puts him in the top 12.0% of the 284,439 people who have ever been ranked in the event, and 518th in Japan. Across 6 competitions since February 2023, he has put 63 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 12% around a typical one, an early reading from 5 counted rounds. His 3×3 best has come down from 20.30 in February 2023 to 11.45, a 44% improvement. Haruki has entered six competitions, more competitions than 86% 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 | 11.45 | 15.12 | top 12.0% | 518 / 3,329 | |
| 3×3 one-handed | 22.69 | 32.22 | top 27.9% | 222 / 529 | |
| 2×2 | 4.26 | 6.39 | top 29.8% | 377 / 1,021 | |
| Pyraminx | 8.90 | 11.40 | top 44.0% | 409 / 688 | |
| 4×4 | 1:07.74 | 1:13.89 | top 44.6% | 414 / 667 | |
| Clock | 18.08 | 22.68 | top 59.0% | 203 / 263 | |
| Square-1 | 41.17 | 50.09 | top 66.9% | 209 / 245 | |
| 6×6 | 4:17.64 | 4:27.61 | early days — 3 solves | 162 / 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, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 21 Jul 2025First sub-15 3×3: 11.45 at Tokyo Summer 2025.
- 4 Nov 2023First sub-20 3×3: 15.09 at Tokyo Challenge VI 2023.
- 12 Feb 2023First competition: Tokyo Challenge Winter C 2023. A 20.30 3×3 single to start from.
Competitions
- Kanto Summer 2026 · 29 Aug 2026
- Tokyo Autumn 2025 · 23 Sep 2025
- Kanto Summer AM 2025 · 30 Aug 2025
- Tokyo Summer 2025 · 21 Jul 2025 — 1 personal best set
- Tokyo Challenge VI 2023 · 4 Nov 2023 — 1 personal best set
- Tokyo Challenge Winter C 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.
- Akatsuki Kitamura (北村曉) — met in 12 rounds, finished ahead 11 times
- Takumi Kato (加藤匠) — met in 12 rounds, never finished ahead
- Zirui Wang (王子睿) — met in 9 rounds, finished ahead once
Next targets
- A sub-10 3×3 single — 21,172 people have one; it is 1.45 away.
- A sub-20 3×3 one-handed single — 15,081 people have one; it is 2.69 away.
Targets move as he improves.