People · Japan
Takafumi Zhang (張隆郁)
2×2 · top 9.2% of 186,767 all-time · competing since April 2023 · 2023ZHAN15
Takafumi Zhang (張隆郁) has been competing for 3 years. His best event is the 2×2: a personal-best single of 2.53, set at Hawaiian Island Tour - Honolulu 2025, puts him in the top 9.2% of the 186,767 people who have ever been ranked in the event, and 127th in Japan. Until February 2008, no official 2×2 solve in the world had been that fast. Across 13 competitions since April 2023, he has put 178 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 13% around a typical one; 56% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 24.69 in April 2023 to 11.60, a 53% improvement. Takafumi has entered 13 competitions, more competitions than 94% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Japan | |
|---|---|---|---|---|---|
| 2×2 | 2.53 | 4.81 | top 9.2% | 127 / 1,021 | |
| 3×3 | 11.60 | 12.87 | top 12.5% | 532 / 3,329 | |
| Skewb | 5.55 | 6.95 | top 22.3% | 115 / 338 | |
| 4×4 | 1:06.96 | 1:14.68 | top 43.9% | 408 / 667 | |
| Clock | 15.64 | 18.51 | top 50.5% | 176 / 263 | |
| Pyraminx | 10.95 | 13.05 | top 60.2% | 509 / 688 | |
| 3×3 one-handed | 39.47 | 47.31 | top 64.6% | 434 / 529 |
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
- 12 Apr 2025Three personal bests in one day at Tokai Spring 2025.
- 28 Jun 2024First sub-15 3×3: 14.04 at Queensland Open 2024.
- 4 Nov 2023First sub-20 3×3: 18.20 at Tokyo Challenge VI 2023.
- 9 Apr 2023First competition: Tokyo Challenge V 2023. A 24.69 3×3 single to start from.
Competitions
- Bangkok Cube Festival 2026 · 11 Jul 2026 — 2 personal bests set
- Ota Autumn 2025 · 8 Nov 2025
- Hawaiian Island Tour - Honolulu 2025 · 16 Jul 2025 — 2 personal bests set
- Hawaiian Island Tour - Kāhala Open 2025 · 15 Jul 2025 — 1 personal best set
- Kanto Spring 2025 · 31 May 2025 — 1 personal best set
- Tokyo Spring PM 2025 · 20 Apr 2025 — 1 personal best set
- Tokai Spring 2025 · 12 Apr 2025 — 3 personal bests set
- Ota Spring 2025 · 20 Mar 2025
- Queensland Open 2024 · 28 Jun 2024 — 2 personal bests set
- Tokyo Challenge VI 2023 · 4 Nov 2023 — 1 personal best set
- Rubik's WCA World Championship 2023 · 12 Aug 2023 — 1 personal best set
- Ayase Summer 2023 · 17 Jul 2023 — 1 personal best set
- Tokyo Challenge V 2023 · 9 Apr 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.
- Zirui Wang (王子睿) — met in 12 rounds, finished ahead twice
- Hajime Miyazaki (宮崎朔) — met in 12 rounds, finished ahead once
- Takumi Kato (加藤匠) — met in 12 rounds, finished ahead once
Next targets
- A sub-2 2×2 single — 8,848 people have one; it is 0.53 away.
- A sub-10 3×3 single — 21,172 people have one; it is 1.60 away.
Targets move as he improves.