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The Middle Three
People → Mexico → Ernesto Adrian Romero Caballero

People · Mexico

Ernesto Adrian Romero Caballero

3×3 · top 2.1% of 284,439 all-time · competing since September 2019 · 2019CABA04

Ernesto Adrian Romero Caballero has been competing for 7 years. His best event is the 3×3: a personal-best single of 7.61, set at Cubing Tlaxcala 2023, puts him in the top 2.1% of the 284,439 people who have ever been ranked in the event, and 99th in Mexico. Until July 2008, no official 3×3 solve in the world had been that fast. Across 17 competitions since September 2019, he has put 677 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 14% around a typical one; 70% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 10.61 in September 2019 to 7.61, a 28% improvement. Ernesto has entered 17 competitions, more competitions than 96% of everyone who has ever competed.

3×3
best event — top 2.1% of 284,439 all-time
7.61
signature single · Cubing Tlaxcala 2023
677
official solves on the record
14%
solve-to-solve spread · wider than 70% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingMexico
3×37.619.44
top 2.1%99 / 4,263
4×430.5638.80
top 3.2%57 / 1,845
5×558.591:09.28
top 4.8%43 / 1,010
Skewb3.565.46
top 8.1%141 / 1,157
2×22.444.14
top 8.3%304 / 3,018
3×3 one-handed16.5121.79
top 11.4%201 / 1,672
Megaminx1:07.391:13.49
top 14.1%157 / 1,042
Pyraminx5.448.51
top 16.1%393 / 2,003
Square-116.3226.34
top 19.4%84 / 516
6×62:18.602:30.93
top 19.8%101 / 510
3×3 blindfolded1:42.39—
top 27.5%50 / 251
Clock10.6813.73
top 28.5%208 / 652
7×74:05.954:21.51
top 33.0%159 / 472
3×3 Multi-Blind4 of 4 cubes · 24:26—
top 41.5%30 / 87

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

Misión México 2019: 10.61Roble Cubing Open 2019: 10.64Telpochcalli Tlaxcala 2020: 11.10Fénix México 2022: 8.65Cubing Tlaxcala 2023: 7.61IZcube 2023: 8.09TizaCubing 2023: 8.35Toros Open 2023: 9.57Speed Cubing Fest Pachuca 2023: 9.82Mexican Championship 2023: 9.58 Vasconcubos 2024: 8.55Aragón Treasure 2024: 8.73SilencESCOM 2024: 9.39BUAP: Ingenieros Open 2024: 8.08Naucalli Ce 2025: 9.70Cubing Express Buenavista 2025: 9.897.6111.1028 Sep 201916 Aug 2025

Best single per competition, 3×3. Faster is higher — the axis is the right way up.

The story so far

Competitions

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.

Next targets

  • A sub-6 3×3 single — 1,376 people have one; it is 1.61 away.
  • A sub-30 4×4 single — 2,388 people have one; it is 0.56 away.

Targets move as he improves.