People · Paraguay
Kenji Julián Cáceres Matsumoto
3×3 · top 0.17% of 284,439 all-time · competing since July 2022 · 2022CACE02
Kenji Julián Cáceres Matsumoto has been competing for 4 years. His best event is the 3×3: a personal-best single of 5.24, set at WCA South American Championship 2026, puts him in the top 0.17% of the 284,439 people who have ever been ranked in the event, and 1st in Paraguay. Until November 2015, no official 3×3 solve in the world had been that fast. Across 25 competitions since July 2022, he has put 1,035 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 13% around a typical one; 58% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 34.83 in July 2022 to 5.24, an 85% improvement. Kenji 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 | Paraguay | |
|---|---|---|---|---|---|
| 3×3 | 5.24 | 7.31 | top 0.17% | 1 / 345 | |
| Megaminx | 34.32 | 40.78 | top 0.58% | 1 / 46 | |
| 2×2 | 1.12 | 2.42 | top 0.82% | 2 / 200 | |
| 4×4 | 26.76 | 31.05 | top 1.3% | 1 / 84 | |
| 3×3 one-handed | 10.65 | 12.75 | top 1.5% | 1 / 91 | |
| 5×5 | 49.72 | 58.56 | top 1.7% | 1 / 41 | |
| Pyraminx | 2.83 | 4.97 | top 3.1% | 1 / 111 | |
| Skewb | 3.06 | 5.03 | top 5.3% | 4 / 63 | |
| 6×6 | 1:45.51 | 1:50.04 | top 5.6% | 1 / 16 | |
| Clock | 7.90 | 10.99 | top 14.8% | 2 / 23 | |
| 7×7 | 3:25.24 | 3:27.65 | top 18.2% | 1 / 12 | |
| Square-1 | 18.18 | 22.46 | top 23.8% | 2 / 21 | |
| 3×3 Fewest Moves | 34 moves | 40.00 | early days — 3 solves | 3 / 18 | |
| 3×3 blindfolded | 3:06.05 | 3:37.53 | top 54.2% | 1 / 8 |
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 Jun 2026Six personal bests in one day at WCA South American Championship 2026.
- 25 Apr 2026Five personal bests in one day at UCOM Paraguay 2026.
- 12 Dec 2025Six personal bests in one day at Paraguay Nationals 2025.
- 15 Feb 2025Six personal bests in one day at Verano on Asunción 2025.
- 12 Oct 2024Five personal bests in one day at Paraguay Nationals 2024.
- 22 Jul 2024Six personal bests in one day at Rubik's WCA South American Championship 2024.
Competitions
- CCPA Open 2026 · 1 Aug 2026 — 2 personal bests set
- WCA South American Championship 2026 · 12 Jun 2026 — 6 personal bests set
- UCOM Paraguay 2026 · 25 Apr 2026 — 5 personal bests set
- Paraguay Nationals 2025 · 12 Dec 2025 — 6 personal bests set
- CSC Decimo Aniversario - FP UNA 2025 · 25 Oct 2025
- CCPA Open 2025 · 26 Jul 2025 — 1 personal best set
- Superseis Cubea - Asunción 2025 · 14 Jun 2025
- Verano on Asunción 2025 · 15 Feb 2025 — 6 personal bests set
- San Lorenzo Off 2024 · 1 Dec 2024 — 1 personal best set
- Paraguay Nationals 2024 · 12 Oct 2024 — 5 personal bests set
- Paraguay Nationals FMC 2024 · 5 Oct 2024
- Grido Cubea Asunción 2024 · 31 Aug 2024
- Rubik's WCA South American Championship 2024 · 22 Jul 2024 — 6 personal bests set
- CCPA Open 2024 · 15 Jun 2024 — 3 personal bests set
- Ben's CubeMakers Asunción 2024 · 20 Apr 2024 — 4 personal bests set
- Los Árboles Eventos 2024 · 3 Mar 2024 — 4 personal bests set
- Anguja Open SIL 2023 · 21 Oct 2023 — 4 personal bests set
- Grido Cubea 2023 · 26 Aug 2023 — 1 personal best set
- CCPA Open 2023 · 22 Jul 2023 — 4 personal bests set
- Quiero Fruta Cubing 2023 · 20 May 2023
- UCOM Paraguay 2023 · 15 Apr 2023 — 2 personal bests set
- First Cubing UNIDA 2023 · 4 Mar 2023 — 4 personal bests set
- Copa Rubik Poligato FPUNA 2022 · 17 Dec 2022 — 3 personal bests set
- Paraguay Nationals 2022 · 29 Oct 2022 — 3 personal bests set
- CCPA Open 2022 · 30 Jul 2022
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.
- Gustavo Riveiro — met in 121 rounds, finished ahead 118 times · head to head
- Elias Miguel Acosta Acosta — met in 114 rounds, finished ahead 107 times · head to head
- Gustavo Adolfo Ortega Gomez — met in 95 rounds, finished ahead 91 times · head to head
Next targets
- A sub-5 3×3 single — 344 people have one; it is 0.24 away.
- A sub-30 Megaminx single — 75 people have one; it is 4.32 away.
Targets move as he improves.