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People · Argentina

Alejandro Kolster Passos

Square-1 · top 0.76% of 25,662 all-time · competing since June 2018 · 2018KOLS02

Alejandro Kolster Passos has been competing for 8 years. His best event is the Square-1: a personal-best single of 5.89, set at GAN Southern Championship 2026, puts him in the top 0.76% of the 25,662 people who have ever been ranked in the event, and 2nd in Argentina. Until May 2017, no official Square-1 solve in the world had been that fast. Across 41 competitions since June 2018, he has put 1,509 official solves on the record across 15 events. Solve to solve, his 3×3 times vary about 14% around a typical one; 77% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 24.42 in June 2018 to 7.84, a 68% improvement. Alejandro has entered 41 competitions, more competitions than 99% of everyone who has ever competed.

Square-1
best event — top 0.76% of 25,662 all-time
5.89
signature single · GAN Southern Championship 2026
1,509
official solves on the record
14%
solve-to-solve spread · wider than 77% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingArgentina
Square-15.898.12
top 0.76%2 / 172
3×37.8410.69
top 2.5%41 / 1,717
Megaminx45.3954.48
top 3.2%16 / 317
Skewb2.748.10
top 3.8%16 / 409
Pyraminx4.178.15
top 8.6%78 / 841
2×22.873.95
top 12.9%151 / 1,223
4×444.2248.61
top 17.4%112 / 632
Clock9.249.99
top 21.1%46 / 187
3×3 Fewest Moves33 moves39.67
top 23.5%23 / 83
5×51:27.841:40.20
top 25.7%80 / 304
3×3 one-handed22.6025.82
top 27.7%148 / 618
3×3 blindfolded2:00.23—
top 33.6%34 / 98
6×63:12.273:22.79
top 47.0%56 / 112
7×75:35.005:50.74
top 61.3%63 / 100
3×3 Multi-Blind2 of 2 cubes · 11:57—
early days — 2 solves28 / 38

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

Central Arkansas Summer 2018: 24.42Razorback Fall 2018: 30.22Arkansas Cubing Drive 2018: 22.38Frisco Liberty Cubing 2019: 16.40Oklahoma Spring 2019: 18.52North Dallas 2019: 14.54Fort Worth Fall Fiesta 2019: 16.04Cedar Park Winter 2023: 14.27Cube Against Cancer Texas 2023: 12.51MYHM Puzzling in Plano 2023: 10.46Space City Summer 2023: 12.71Pretzel Mania Dallas 2023: 11.22Cube With Attention in Denton 2023: 11.03DFW Back to School 2024: 10.29Cube a Ton in Arlington 2024: 10.04DFW Cubing Winter 2025: 10.24DFW Cubing Spring 2025: 10.16DFW Qualifier 2025: 10.86DFW Cubing Summer 2025: 7.84DFW Cubing Fall 2025: 9.43Texas Championship 2025: 8.15DFW Cubing Winter 2026: 9.85DFW Favorites 2026: 9.02The Heart of Texas Spring 2026: 10.22DFW Cubing Spring 2026: 10.28Cube Against Cancer DFW 2026: 10.25GAN Southern Championship 2026: 9.77Cubing at COTA 2026: 9.09New Braunfels Tube & Twist 2026: 10.18DFW Cubing Summer 2026: 9.94Round Rock Mega Cube Day 2026: 9.40Roanoke Gone Rogue 2026: 11.607.8430.2230 Jun 201826 Sep 2026

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.

  • Ryan Pilat — met in 276 rounds, never finished ahead
  • John Wanger II — met in 173 rounds, finished ahead 37 times
  • Luke Cowan — met in 172 rounds, finished ahead 100 times

Next targets

  • A sub-5 Square-1 single — 70 people have one; it is 0.89 away.
  • A sub-6 3×3 single — 1,419 people have one; it is 1.84 away.

Targets move as he improves.