People · Brazil
Isaac Luiz Oliveira Duarte Barbosa
2×2 · top 2.2% of 189,179 all-time · competing since October 2023 · 2023BARB29
Isaac Luiz Oliveira Duarte Barbosa has been competing for 3 years. His best event is the 2×2: a personal-best single of 1.50, set at II Mini Recife Open 2026, puts him in the top 2.2% of the 189,179 people who have ever been ranked in the event, and 67th in Brazil. Until November 2008, no official 2×2 solve in the world had been that fast. Across 10 competitions since October 2023, he has put 522 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 15% around a typical one; 82% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 2×2 best has come down from 5.45 in December 2023 to 1.50, a 72% improvement. Isaac has entered ten competitions, more competitions than 92% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Brazil | |
|---|---|---|---|---|---|
| 2×2 | 1.50 | 3.28 | top 2.2% | 67 / 5,285 | |
| Pyraminx | 2.91 | 4.81 | top 3.3% | 85 / 3,311 | |
| 3×3 | 8.85 | 9.98 | top 4.6% | 208 / 9,942 | |
| 4×4 | 42.99 | 49.24 | top 15.8% | 193 / 1,884 | |
| Skewb | 4.77 | 7.47 | top 16.5% | 200 / 1,493 | |
| Square-1 | 15.41 | 23.37 | top 17.4% | 89 / 656 | |
| Clock | 8.59 | 9.29 | top 17.8% | 119 / 741 | |
| 3×3 one-handed | 19.98 | 22.70 | top 20.5% | 300 / 2,045 | |
| Megaminx | 1:39.68 | 1:52.39 | top 34.6% | 288 / 1,082 | |
| 5×5 | 1:52.80 | 1:59.79 | top 44.7% | 279 / 855 | |
| 3×3 Fewest Moves | 45 moves | 50.67 | top 65.7% | 238 / 364 |
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, 2×2. Faster is higher — the axis is the right way up.
The story so far
- 12 Sep 2026Three personal bests in one day at II Mini Recife Open 2026.
- 17 Jan 2026Four personal bests in one day at VII Recife Open 2026.
- 19 Sep 2025Seven personal bests in one day at Campeonato Nordestino ABRACM 2025.
- 2 Aug 2025Three personal bests in one day at Mini Recife Open 2025.
- 25 Jan 2025Four personal bests in one day at VI Recife Open 2025.
- 28 Sep 2024First sub-10 3×3: 9.45 at V Recife Open 2024.
Competitions
- II Mini Recife Open 2026 · 12 Sep 2026 — 3 personal bests set
- VII Recife Open 2026 · 17 Jan 2026 — 4 personal bests set
- Campeonato Nordestino ABRACM 2025 · 19 Sep 2025 — 7 personal bests set
- Mini Recife Open 2025 · 2 Aug 2025 — 3 personal bests set
- Campeonato Brasileiro FMC 2025 · 13 Jul 2025
- VI Recife Open 2025 · 25 Jan 2025 — 4 personal bests set
- V Recife Open 2024 · 28 Sep 2024 — 6 personal bests set
- IV Recife Open 2024 · 13 Apr 2024 — 9 personal bests set
- III Recife Open 2023 · 16 Dec 2023 — 3 personal bests set
- Campeonato Brasileiro 2023 · 13 Oct 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.
- Arthur Vinicios Medeiros Alves — met in 83 rounds, finished ahead once · head to head
- Celso Reis Vasconcelos Landim — met in 70 rounds, finished ahead 29 times · head to head
- Igor Kauã Gomes da Silva — met in 69 rounds, finished ahead 50 times · head to head
Next targets
- A sub-1 2×2 single — 1,050 people have one; it is 0.50 away.
- A sub-2 Pyraminx single — 1,497 people have one; it is 0.91 away.
Targets move as he improves.