People · United States
Cooper Dean
3×3 · top 17.6% of 288,433 all-time · competing since January 2016 · 2016DEAN01
Cooper Dean has been competing for 11 years. His best event is the 3×3: a personal-best single of 13.02, set at Ipswich Fall 2025, puts him in the top 17.6% of the 288,433 people who have ever been ranked in the event, and 9,536th in the United States. Across 12 competitions since January 2016, he has put 298 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 13% around a typical one; 52% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 20.78 in January 2016 to 13.02, a 37% improvement. Cooper has entered twelve 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 | United States | |
|---|---|---|---|---|---|
| 3×3 | 13.02 | 15.00 | top 17.6% | 9,536 / 60,666 | |
| Pyraminx | 6.05 | 8.10 | top 20.4% | 5,575 / 29,168 | |
| 2×2 | 3.53 | 4.67 | top 20.6% | 8,200 / 41,674 | |
| 4×4 | 49.00 | 57.22 | top 23.6% | 3,629 / 19,354 | |
| Clock | 12.74 | 15.19 | top 38.5% | 3,126 / 9,172 | |
| Skewb | 7.92 | 11.98 | top 40.7% | 7,151 / 19,164 | |
| 3×3 Fewest Moves | 38 moves | 42.33 | early days — 3 solves | 893 / 2,059 | |
| Square-1 | 26.06 | 33.34 | top 41.7% | 2,744 / 6,846 | |
| 3×3 one-handed | 28.31 | 31.91 | top 42.7% | 5,834 / 15,900 | |
| 3×3 blindfolded | 2:29.75 | — | early days — 3 solves | 933 / 2,128 | |
| 5×5 | 1:52.16 | 2:03.83 | top 44.3% | 3,689 / 9,537 | |
| Megaminx | 1:59.25 | 2:06.48 | top 45.4% | 3,409 / 8,026 | |
| 7×7 | 5:11.81 | 5:27.01 | top 54.5% | 1,632 / 3,236 | |
| 6×6 | 3:46.94 | 4:07.73 | top 61.4% | 2,400 / 4,262 |
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
- 10 Jan 2026Three personal bests in one day at Wide Moves & Waterslides CT 2026.
- 1 Dec 2018Four personal bests in one day at The Battle of Lexington 2018.
- 18 Mar 2018First sub-15 3×3: 13.44 at WPI Winter Cube Day 2018.
- 13 Aug 2016First sub-20 3×3: 16.71 at Sharon Summer 2016.
- 13 Aug 2016Four personal bests in one day at Sharon Summer 2016.
- 30 Jan 2016First competition: Sharon Winter 2016. A 20.78 3×3 single to start from.
Competitions
- CubingUSA New England Championship 2026 · 16 Oct 2026 — 2 personal bests set
- UMass Spring 2026 · 28 Feb 2026 — 1 personal best set
- Brown Cubing Day 2026 · 21 Feb 2026 — 2 personal bests set
- Berkshires Cube Day at BART 2026 · 24 Jan 2026 — 2 personal bests set
- Wide Moves & Waterslides CT 2026 · 10 Jan 2026 — 3 personal bests set
- Maine PBQ 2025 · 27 Dec 2025
- Ipswich Fall 2025 · 13 Dec 2025 — 1 personal best set
- The Battle of Lexington 2018 · 1 Dec 2018 — 4 personal bests set
- MIT Fall 2018 · 6 Oct 2018 — 1 personal best set
- WPI Winter Cube Day 2018 · 18 Mar 2018 — 2 personal bests set
- Sharon Summer 2016 · 13 Aug 2016 — 4 personal bests set
- Sharon Winter 2016 · 30 Jan 2016
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.
- Will Russo — met in 54 rounds, finished ahead twice
- Derek White — met in 48 rounds, finished ahead 4 times
- Josh Sanderson — met in 41 rounds, finished ahead twice
Next targets
- A sub-12 3×3 single — 40,277 people have one; it is 1.02 away.
- A sub-6 Pyraminx single — 26,233 people have one; it is 0.05 away.
Targets move as he improves.