People · Spain
Sergio Bueno Merino
2×2 · top 3.1% of 189,179 all-time · competing since October 2016 · 2016MERI01
Sergio Bueno Merino has been competing for 10 years. His best event is the 2×2: a personal-best single of 1.70, set at Altasierra 2018, puts him in the top 3.1% of the 189,179 people who have ever been ranked in the event, and 132nd in Spain. Until February 2008, no official 2×2 solve in the world had been that fast. Across 9 competitions since October 2016, he has put 312 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 15% around a typical one; 85% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 18.07 in October 2016 to 10.17, a 44% improvement. Sergio 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 | Spain | |
|---|---|---|---|---|---|
| 2×2 | 1.70 | 4.05 | top 3.1% | 132 / 3,897 | |
| 3×3 | 10.17 | 12.87 | top 8.0% | 335 / 5,202 | |
| Skewb | 4.59 | 10.60 | top 15.2% | 374 / 1,699 | |
| 3×3 one-handed | 19.52 | 25.71 | top 19.3% | 212 / 1,335 | |
| 4×4 | 49.00 | 57.20 | top 23.6% | 339 / 1,778 | |
| Megaminx | 1:42.87 | 2:10.87 | top 36.5% | 254 / 889 | |
| 5×5 | 1:44.11 | 1:57.32 | top 38.5% | 257 / 874 | |
| Pyraminx | 8.48 | 11.69 | top 40.4% | 1,182 / 2,901 | |
| Square-1 | 35.96 | 54.99 | top 59.9% | 325 / 610 |
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
- 17 Oct 2026Three personal bests in one day at Carmona Open 2026.
- 25 Nov 2023Three personal bests in one day at Mairena Open 2023.
- 24 Feb 2018Five personal bests in one day at Altasierra 2018.
- 18 Feb 2017First sub-15 3×3: 14.26 at Altasierra 2017.
- 7 Oct 2016First competition: Spanish Championship 2016. A 18.07 3×3 single to start from.
Competitions
- Carmona Open 2026 · 17 Oct 2026 — 3 personal bests set
- Mairena Open 2026 · 11 Apr 2026 — 1 personal best set
- Macarena Speedcubing Open 2024 · 19 Oct 2024 — 1 personal best set
- Colegio Sagrado Corazón de Jesús Nervión Open 2024 · 27 Apr 2024 — 1 personal best set
- Mairena Open 2023 · 25 Nov 2023 — 3 personal bests set
- Nhood Sevilla Open 2023 · 10 Mar 2023
- Altasierra 2018 · 24 Feb 2018 — 5 personal bests set
- Altasierra 2017 · 18 Feb 2017 — 2 personal bests set
- Spanish Championship 2016 · 7 Oct 2016 — 1 personal best set
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.
- Miguel Ángel González-Herrero García — met in 60 rounds, finished ahead 9 times
- Raúl Cuevas Castillo — met in 46 rounds, never finished ahead
- Carlos Méndez García-Barroso — met in 45 rounds, never finished ahead
Next targets
- A sub-1 2×2 single — 1,050 people have one; it is 0.70 away.
- A sub-10 3×3 single — 21,606 people have one; it is 0.17 away.
Targets move as he improves.