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People · Poland

Kacper Stacha

2×2 · top 3.1% of 186,767 all-time · competing since March 2013 · 2013STAC01

Kacper Stacha has been competing for 14 years. His best event is the 2×2: a personal-best single of 1.71, set at Polish Open 2018, puts him in the top 3.1% of the 186,767 people who have ever been ranked in the event, and 301st in Poland. Until February 2008, no official 2×2 solve in the world had been that fast. Across 43 competitions since March 2013, he has put 1,885 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 13% around a typical one; 60% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 2×2 best has come down from 4.34 in June 2013 to 1.71, a 61% improvement. Kacper has entered 43 competitions, more competitions than 99% of everyone who has ever competed.

2×2
best event — top 3.1% of 186,767 all-time
1.71
signature single · Polish Open 2018
1,885
official solves on the record
13%
solve-to-solve spread · wider than 60% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingPoland
2×21.713.08
top 3.1%301 / 5,422
Skewb2.985.41
top 4.9%229 / 2,810
Pyraminx3.435.73
top 5.2%363 / 4,406
3×310.4312.24
top 8.7%772 / 6,576
3×3 one-handed18.4925.96
top 16.4%388 / 2,176
4×447.9052.86
top 22.0%625 / 2,851
5×51:27.221:40.39
top 25.1%355 / 1,442
Megaminx2:21.002:31.02
top 56.9%783 / 1,384
6×63:59.334:21.64
top 65.2%416 / 669
Square-141.0644.44
top 66.8%634 / 1,002
7×77:28.88—
early days — 2 solves461 / 546

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

Polish Nationals 2013: 4.34SLS Jastrzebie 2013: 6.04SLS Zaglebie 2013: 2.89SLS Swierklany 2013: 2.89SLS Czestochowa 2013: 3.11SLS Bielsko-Biala 2014: 2.40SLS Gliwice 2014: 2.95SLS Rybnik 2014: 4.02SLS Tarnowskie Gory 2014: 3.47SLS Chorzow 2014: 3.16Aleksandrus Cube 2014: 3.32Polish Nationals 2014: 2.91Kielce Cube Attack 2014: 2.91Krakow Cubing Spree 2014: 2.42Santa Claus Cube Race 2014: 2.40ŚLS Gliwice 2015: 2.59Polish Open 2015: 2.20ŚLS Zawiercie 2015: 1.82SLS Rybnik 2015: 2.22Radomsko Cube Theory 2015: 3.09ŚLS Sosnowiec 2015: 2.36Warsaw Cube Masters 2015: 2.67ŚLS Wodzisław Śląski 2015: 3.20Santa Claus Cube Race 2015: 2.96Beskidy Cubing Day 2016: 3.05Tuwim Cube Race 2016: 2.95Mielec Cube Day 2016: 3.58European Rubik's Cube Championship 2016: 3.47Elektryk Cube Race 2016: 2.80Santa Claus Cube Race 2016: 3.526 Sides of Silesia 2017: 1.77SLS Gliwice 2017: 2.59ŚLS Jastrzębie Zdrój 2017: 2.44ŚLS Będzin Open 2017: 2.15ŚLS Zawiercie 2017: 2.78Polish Open 2017: 1.91Polish Nationals 2017: 2.41CFL Santa Claus Cube Race 2017: 3.71GLS Cup III 2018: 2.99Polish Open 2018: 1.711.716.0429 Jun 20138 Dec 2018

Best single per competition, 2×2. 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-1 2×2 single — 1,032 people have one; it is 0.71 away.
  • A sub-2 Skewb single — 1,013 people have one; it is 0.98 away.

Targets move as he improves.