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People · Croatia

Karlo Tretinjak

Skewb · top 3.2% of 73,281 all-time · competing since April 2024 · 2024TRET01

Karlo Tretinjak has been competing for 2 years. His best event is the Skewb: a personal-best single of 2.59, set at Rubik's WCA European Championship 2026, puts him in the top 3.2% of the 73,281 people who have ever been ranked in the event, and 6th in Croatia. Until February 2014, no official Skewb solve in the world had been that fast. Across 20 competitions since April 2024, he has put 574 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 67% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 44.86 in April 2024 to 12.68, a 72% improvement. Karlo has entered 20 competitions, more competitions than 97% of everyone who has ever competed.

Skewb
best event — top 3.2% of 73,281 all-time
2.59
signature single · Rubik's WCA European Championship 2026
574
official solves on the record
12%
solve-to-solve spread · steadier than 67% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingCroatia
Skewb2.594.94
top 3.2%6 / 119
2×22.393.79
top 7.9%35 / 275
Pyraminx5.209.06
top 14.4%35 / 201
3×312.6814.56
top 16.3%71 / 360
4×448.0155.82
top 22.1%35 / 154
Clock9.9512.32
top 24.9%22 / 59
5×51:38.131:45.13
top 34.0%24 / 67
Megaminx1:40.142:02.64
top 34.7%25 / 56
3×3 one-handed27.1230.27
top 39.6%47 / 97
6×63:47.743:51.75
top 61.5%19 / 30
7×77:04.14—
early days — 3 solves20 / 23

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

Ogulin Open 2024: 44.86Slovenian Nationals 2024: 44.35Croatian Championship 2024: 30.41Varaždin Open 2024: 24.80Osijek Open 2025: 21.27Lipovljani Newcomer Day 2025: 17.42Zadar Open 2025: 16.84Zagreb Open 2025: 18.91Croatian Championship 2025: 15.61Hungarian Open 2025: 15.27Prlekija Open 2026: 14.90Osijek Open 2026: 13.03Split Open 2026: 12.68Zagreb Open 2026: 12.91Rubik's WCA European Championship 2026: 13.4712.6844.8627 Apr 202416 Jul 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.

Next targets

  • A sub-2 Skewb single — 1,013 people have one; it is 0.59 away.
  • A sub-2 2×2 single — 8,848 people have one; it is 0.39 away.

Targets move as he improves.