People · Guatemala
Byron Juan Diego Tahay Lemus
2×2 · top 9.1% of 189,179 all-time · competing since May 2019 · 2019LEMU04
Byron Juan Diego Tahay Lemus has been competing for 7 years. His best event is the 2×2: a personal-best single of 2.51, set at Kukulcán Open Quetzaltenango 2026, puts him in the top 9.1% of the 189,179 people who have ever been ranked in the event, and 54th in Guatemala. Until February 2008, no official 2×2 solve in the world had been that fast. Across 5 competitions since May 2019, he has put 231 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 14% around a typical one; 78% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 15.75 in May 2019 to 11.53, a 27% improvement. Byron has entered five competitions, more competitions than 83% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Guatemala | |
|---|---|---|---|---|---|
| 2×2 | 2.51 | 4.53 | top 9.1% | 54 / 741 | |
| Megaminx | 1:03.52 | 1:09.10 | top 11.9% | 22 / 138 | |
| 3×3 | 11.53 | 13.62 | top 12.3% | 105 / 1,255 | |
| 4×4 | 46.45 | 49.94 | top 20.2% | 63 / 310 | |
| 5×5 | 1:25.13 | 1:30.77 | top 23.5% | 37 / 153 | |
| Pyraminx | 7.30 | 9.20 | top 30.4% | 123 / 481 | |
| 3×3 one-handed | 25.02 | 31.66 | top 34.4% | 100 / 313 | |
| 7×7 | 4:12.73 | 4:41.13 | early days — 3 solves | 23 / 53 | |
| 6×6 | 3:15.38 | — | early days — 1 solve | 35 / 59 | |
| Skewb | 11.59 | 15.49 | top 64.0% | 124 / 206 | |
| Square-1 | 55.51 | — | early days — 1 solve | 72 / 91 | |
| Clock | 36.15 | — | early days — 1 solve | 58 / 69 |
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
- 11 Sep 2026Five personal bests in one day at Kukulcán Open Quetzaltenango 2026.
- 14 Dec 2019Four personal bests in one day at GuateMaya Open 2019.
- 7 Sep 2019First sub-15 3×3: 12.71 at Xela Open 2019.
- 7 Sep 2019Four personal bests in one day at Xela Open 2019.
- 17 May 2019First competition: Speedcubing Academy Xelajú 2019. A 16.46 3×3 single to start from.
Competitions
- Kukulcán Open Quetzaltenango 2026 · 11 Sep 2026 — 5 personal bests set
- Cubing Party Xela 2022 · 10 Apr 2022 — 2 personal bests set
- GuateMaya Open 2019 · 14 Dec 2019 — 4 personal bests set
- Xela Open 2019 · 7 Sep 2019 — 4 personal bests set
- Speedcubing Academy Xelajú 2019 · 17 May 2019 — 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.
- Pablo Say — met in 51 rounds, finished ahead 14 times
- Manuel Aleandro Chang Pérez — met in 49 rounds, finished ahead 5 times
- Alexander Batz — met in 45 rounds, finished ahead 4 times
Next targets
- A sub-2 2×2 single — 9,039 people have one; it is 0.51 away.
- A sub-1:00 Megaminx single — 3,558 people have one; it is 3.52 away.
Targets move as he improves.