People · China
Diego Jiashu Jiang (蒋佳澍)
3×3 · top 3.7% of 284,439 all-time · competing since June 2024 · 2024JIAN14
Diego Jiashu Jiang (蒋佳澍) has been competing for 2 years. His best event is the 3×3: a personal-best single of 8.50, set at Berkeley March Weekday 2026, puts him in the top 3.7% of the 284,439 people who have ever been ranked in the event, and 1,417th in China. Until July 2008, no official 3×3 solve in the world had been that fast. Across 25 competitions since June 2024, he has put 324 official solves on the record across ten events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 55% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 13.77 in June 2024 to 8.50, a 38% improvement. Diego has entered 25 competitions, more competitions than 98% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | China | |
|---|---|---|---|---|---|
| 3×3 | 8.50 | 11.08 | top 3.7% | 1,417 / 28,153 | |
| 2×2 | 3.18 | 3.83 | top 16.4% | 2,628 / 15,796 | |
| 3×3 one-handed | 21.32 | 25.85 | top 24.1% | 2,385 / 5,922 | |
| Pyraminx | 9.84 | 11.52 | top 51.7% | 5,422 / 10,224 | |
| 4×4 | 1:17.38 | — | top 53.7% | 4,717 / 5,926 | |
| Skewb | 11.30 | 16.22 | top 62.4% | 3,389 / 5,004 | |
| Clock | 19.24 | 25.11 | top 62.5% | 1,404 / 1,843 | |
| 5×5 | 3:41.91 | — | early days — 3 solves | 2,750 / 2,816 | |
| Megaminx | 4:01.64 | — | top 90.3% | 1,645 / 1,678 | |
| Square-1 | 1:53.76 | — | early days — 2 solves | 1,363 / 1,362 |
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
- 1 Mar 2026First sub-10 3×3: 9.82 at Berkeley Favorites 2026.
- 1 Jun 2024First competition: Tianjin Open 2024. A 13.77 3×3 single to start from.
Competitions
- Bay Area Speedcubin' 69 2026 · 29 Aug 2026 — 2 personal bests set
- Berkeley Spring 2026 · 26 Apr 2026
- Berkeley Pre-Cal Day 2026 · 17 Apr 2026
- Berkeley March Weekday 2026 · 13 Mar 2026 — 1 personal best set
- Berkeley Favorites 2026 · 1 Mar 2026 — 1 personal best set
- Berkeley February Weekday 2026 · 6 Feb 2026 — 1 personal best set
- Berkeley January Weekday 2026 · 22 Jan 2026 — 1 personal best set
- Berkeley December Weekday 2025 · 2 Dec 2025
- Berkeley November Weekday 2025 · 14 Nov 2025 — 2 personal bests set
- Cool Down Berkeley 2025 · 2 Nov 2025 — 1 personal best set
- Berkeley October Weekday 2025 · 24 Oct 2025 — 1 personal best set
- Berkeley Fall 2025 · 4 Oct 2025 — 1 personal best set
- Berkeley September Weekday 2025 · 19 Sep 2025
- Berkeley August Weekday 2025 · 27 Aug 2025
- Berkeley April Weekday Tricubealon 2025 · 28 Apr 2025
- Berkeley Pre-Cal Day Tricubealon 2025 · 18 Apr 2025
- Berkeley Spring 2025 · 2 Mar 2025 — 1 personal best set
- Berkeley January Weekday Tricubealon 2025 · 31 Jan 2025 — 1 personal best set
- Berkeley December Weekday Tricubealon 2024 · 4 Dec 2024
- Berkeley November Weekday Tricubealon 2024 · 18 Nov 2024
- Cool Down Berkeley 2024 · 3 Nov 2024
- Berkeley October Weekday Tricubealon 2024 · 21 Oct 2024
- Berkeley Fall 2024 · 13 Oct 2024 — 2 personal bests set
- Shenzhen Nanshan Open 2024 · 22 Jun 2024 — 1 personal best set
- Tianjin Open 2024 · 1 Jun 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.
- Ethan Jan — met in 67 rounds, never finished ahead
- Ryan H. Lee — met in 58 rounds, finished ahead 3 times
- Anto Kam (甘浩東) — met in 56 rounds, never finished ahead
Next targets
- A sub-8 3×3 single — 7,931 people have one; it is 0.50 away.
- A sub-3 2×2 single — 26,570 people have one; it is 0.18 away.
Targets move as he improves.