People · Brazil
Eduardo Costa de Carvalho
3×3 · top 7.0% of 288,433 all-time · competing since January 2014 · 2014CARV01
Eduardo Costa de Carvalho has been competing for 13 years. His best event is the 3×3: a personal-best single of 9.81, set at X CUBIFMA 2025, puts him in the top 7.0% of the 288,433 people who have ever been ranked in the event, and 342nd in Brazil. Until October 2007, no official 3×3 solve in the world had been that fast. Across 9 competitions since January 2014, he has put 410 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 84% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 49.48 in January 2014 to 9.81, an 80% improvement. Eduardo has entered nine competitions, more competitions than 91% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Brazil | |
|---|---|---|---|---|---|
| 3×3 | 9.81 | 11.19 | top 7.0% | 342 / 9,942 | |
| 2×2 | 2.76 | 3.83 | top 11.6% | 403 / 5,285 | |
| Pyraminx | 4.78 | 6.82 | top 11.9% | 290 / 3,311 | |
| Skewb | 5.87 | 8.57 | top 24.8% | 320 / 1,493 | |
| 4×4 | 54.94 | 1:03.76 | top 30.8% | 425 / 1,884 | |
| Square-1 | 30.73 | 36.47 | top 50.8% | 290 / 656 | |
| Megaminx | 3:12.40 | — | early days — 2 solves | 768 / 1,082 |
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
- 29 Nov 2025First sub-10 3×3: 9.81 at X CUBIFMA 2025.
- 28 Jan 2017Four personal bests in one day at Maranhão Open 2017.
- 22 Jul 2016Three personal bests in one day at Brasileiro 2016.
- 7 Nov 2015Four personal bests in one day at Maranhão Open 2015.
- 17 Jul 2015First sub-15 3×3: 13.21 at World Rubik's Cube Championship 2015.
- 17 Jul 2015Three personal bests in one day at World Rubik's Cube Championship 2015.
Competitions
- X CUBIFMA 2025 · 29 Nov 2025 — 1 personal best set
- Maranhão Open 2017 · 28 Jan 2017 — 4 personal bests set
- Brasileiro 2016 · 22 Jul 2016 — 3 personal bests set
- Maranhão Open 2015 · 7 Nov 2015 — 4 personal bests set
- World Rubik's Cube Championship 2015 · 17 Jul 2015 — 3 personal bests set
- Pré-Mundial 2015 · 23 Jan 2015 — 4 personal bests set
- Maranhão Open 2014 · 6 Dec 2014 — 7 personal bests set
- Fortaleza Open 2014 · 23 Aug 2014 — 2 personal bests set
- São Luís Open 2014 · 25 Jan 2014
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.
- Fabio Bini Graciose — met in 57 rounds, finished ahead 44 times
- Alrimar Dias Rocha Sobrinho — met in 49 rounds, finished ahead 14 times
- Gustavo Penaforte Brito — met in 48 rounds, finished ahead 4 times
Next targets
- A sub-8 3×3 single — 8,101 people have one; it is 1.81 away.
- A sub-2 2×2 single — 9,039 people have one; it is 0.76 away.
Targets move as he improves.