People · Colombia
Juan Manuel Serna Marín
Skewb · top 7.4% of 74,164 all-time · competing since October 2014 · 2014MARI10
Juan Manuel Serna Marín has been competing for 12 years. His best event is the Skewb: a personal-best single of 3.44, set at Nacionales Medellín Explora 2019, puts him in the top 7.4% of the 74,164 people who have ever been ranked in the event, and 90th in Colombia. Until February 2014, no official Skewb solve in the world had been that fast. Across 7 competitions since October 2014, he has put 205 official solves on the record across six events. Solve to solve, his 3×3 times vary about 13% around a typical one; 54% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 24.41 in October 2014 to 15.01, a 39% improvement. Juan has entered seven competitions, more competitions than 88% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Colombia | |
|---|---|---|---|---|---|
| Skewb | 3.44 | 7.49 | top 7.4% | 90 / 1,073 | |
| 2×2 | 2.91 | 4.73 | top 13.3% | 416 / 3,643 | |
| Pyraminx | 6.46 | 8.87 | top 23.5% | 514 / 2,423 | |
| 3×3 | 15.01 | 19.87 | top 24.6% | 1,131 / 5,867 | |
| 4×4 | 1:09.93 | 1:20.66 | top 46.9% | 674 / 1,284 | |
| 3×3 one-handed | 38.38 | 49.89 | top 63.0% | 767 / 1,192 |
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
- 15 Oct 2016Four personal bests in one day at Torneo Medellín Explora 2016.
- 25 Jun 2016First sub-20 3×3: 19.93 at Torneo Rubik Aventura 2016.
- 11 Oct 2014First competition: Speedcubing Medellin 2014. A 24.41 3×3 single to start from.
Competitions
- Nacionales Medellín Explora 2019 · 22 Jun 2019 — 1 personal best set
- Medellín Explora 2018 · 18 Aug 2018 — 2 personal bests set
- Medellín Explora 2017 · 9 Dec 2017 — 1 personal best set
- Torneo Medellín Explora 2016 · 15 Oct 2016 — 4 personal bests set
- Torneo Rubik Aventura 2016 · 25 Jun 2016 — 2 personal bests set
- Torneo Medellín Explora 2015 · 4 Oct 2015 — 1 personal best set
- Speedcubing Medellin 2014 · 11 Oct 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.
- Yerson Osorio — met in 34 rounds, finished ahead 14 times
- Oscar Nieto — met in 33 rounds, finished ahead once
- Kevin Lopez Rodriguez — met in 33 rounds, never finished ahead
Next targets
- A sub-3 Skewb single — 3,709 people have one; it is 0.44 away.
- A sub-2 2×2 single — 9,039 people have one; it is 0.91 away.
Targets move as he improves.