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People · Denmark

Rasmus Stub Detlefsen

Square-1 · top 0.036% of 25,272 all-time · competing since December 2014 · 2014DETL01

Rasmus Stub Detlefsen has been competing for 12 years. His best event is the Square-1: a personal-best single of 3.70, set at Jiajiang Open 2026, puts him in the top 0.036% of the 25,272 people who have ever been ranked in the event, and 1st in Denmark. Until December 2023, no official Square-1 solve in the world had been that fast. Across 140 competitions since December 2014, he has put 9,862 official solves on the record across 15 events. Solve to solve, his 3×3 times vary about 15% around a typical one; 81% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 18.10 in December 2014 to 5.03, a 72% improvement. Rasmus has entered 140 competitions, more competitions than 99% of everyone who has ever competed.

Square-1
best event — top 0.036% of 25,272 all-time
3.70
signature single · Jiajiang Open 2026
9,862
official solves on the record
15%
solve-to-solve spread · wider than 81% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingDenmark
Square-13.705.46
top 0.036%1 / 185
2×20.691.37
top 0.11%2 / 906
Pyraminx1.152.52
top 0.11%3 / 702
Skewb1.172.24
top 0.12%2 / 467
3×35.036.46
top 0.13%3 / 1,198
4×423.0626.45
top 0.33%2 / 468
3×3 one-handed9.3412.50
top 0.66%6 / 380
5×550.1856.78
top 1.8%7 / 269
6×61:36.111:45.67
top 3.1%4 / 126
Megaminx46.6454.18
top 3.7%11 / 232
7×72:40.272:45.85
top 5.5%6 / 116
Clock6.547.59
top 9.3%19 / 187
3×3 Fewest Moves28 moves30.33
top 9.9%15 / 96
3×3 blindfolded1:29.422:07.31
top 22.9%16 / 80
3×3 Multi-Blind2 of 2 cubes · 12:24—
early days — 2 solves23 / 36

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

Odense Classic Christmas Cubing Competition 2014: 18.10Danish Open Championships 2015: 11.69Danish Special 2015: 10.85Generalforsamlingen 2016: 11.35Roskilde by Vote 2016: 8.76Selandia Open 2016: 7.95Danish Open 2016: 9.22Vinderup Open 2016: 9.24Generalforsamlingen 2017: 8.37Kongens Lyngby Open 2017: 9.01Danish Open 2017: 8.06Kvissel Open 2017: 7.78World Rubik's Cube Championship 2017: 8.25Vestegnen Open 2017: 8.98Dutch Open 2017: 8.58Kirke Værløse Christmas Open 2017: 8.27Generalforsamlingen 2018: 7.96Østerhøj Open 2018: 6.57Royal Corner Twist 2018: 7.44Swedish Championship 2018: 7.04Tårnby Cube Træf 2018: 7.05WCA European Championship 2018: 6.87Dåstrup Sleepover 2018: 6.52Danish Open 2018: 7.33Skottegårdsskolen Open 2018: 7.46Nordic Championship 2018: 6.76Kvissel Fall 2018: 7.61Østerhøj Christmas by Vote 2018: 7.57DSF Generalforsamlingen 2019: 7.17Østerhøj NxNxN 2019: 7.56Aarhus Spring 2019: 6.07Denmark & Friends 2019: 7.26SSL 2 Skurup 2019: 7.15KMG Spring 2019: 6.83Swedish Championship 2019: 6.85Faaborg Open 2019: 5.53Østerhøj Open 2019: 6.33Danish Open 2019: 6.50Nordic Championship 2019: 5.03Tårnby Cube Træf 2019: 6.72Aarhus Christmas 2019: 6.35Minx C-Open-hagen 2020: 6.71DSF Generalforsamlingen 2020: 7.13Greve Gymnasium 2020: 6.03Lonely Denmark 2020: 6.76Hvidovre Sommerhygge 2020: 6.53Danish Championship 2020: 5.55Danish Championship 2021: 5.54Borupgaard Autumn 2021: 7.38DSF Generalforsamlingen 2022: 6.63Speedcubing i Lille Friheden 2022: 6.09Dåstrup Sleepover 2022: 6.28Odsherred Forårscubing 2022: 6.78Østervang Open 2022: 6.66Rubik's WCA European Championship 2022: 5.88Sønderjysk Sommercubing 2022: 6.30Danish Championship 2022: 6.45Roskilde For Alle 2022: 6.66Kewbz UK Championship 2022: 5.52Aarhus Open 2022: 5.70Malmö Cube Contest 2022: 5.18Ikast Winter Cubing 2023: 6.08DSF Generalforsamlingen 2023: 6.38Holmegårdsskolen Februar 2023: 6.31Aarhus Spring 2023: 6.57Forårscubing i Hvidovre 2023: 5.61Bornholm Open 2023: 5.94Swedish Championship 2023: 6.15Odsherred Sommercubing 2023: 6.16Blandede Bolsjer i Lejre 2023: 6.61Rubik's WCA World Championship 2023: 6.48Danish Championship 2023: 5.75Hvidovre Fall 2023: 5.28Roskilde For Alle 2023: 6.13Tofta Autumn Open 2023: 6.31Efterårscubing i Hvidovre 2023: 5.90Bjerringbro Open 2023: 6.16Dåstrup Diverse 2024: 6.32DSF Generalforsamlingen 2024: 5.25Vintercubing i Hvidovre 2024: 5.85Fredericia Open 2024: 6.52Aarhus Spring 2024: 5.43Alle Mod Alle i Allerød 2024: 6.08Furesø Beginnings 2024: 6.24Ikast Cubing Kaos 2024: 6.41Ishøj Introduktion 2024: 5.42Hverdagscubing - Fyn 2024: 5.69Rubik's WCA European Championship 2024: 6.40Festlige Terninger Østervang 2024: 6.48Summer Vibe Puck 2024: 6.10Danish Championship 2024: 6.07Østervang Open 2024: 6.72Oct-ober-ahedron i Hvidovre 2024: 6.15Polish Championship 2024: 6.15Aarhus Advent 2024: 6.48Hverdagscubing December - Fyn 2024: 6.06Festligt Farvel til 2024: 6.00DSF Generalforsamlingen 2025: 6.10Hvidovre NxN 2025: 5.13Aarhus Winter 2025: 7.13Sydals Open 2025: 7.30Dåstrup Diverse 2025: 6.07Oldenburg Oster Open 2025: 5.94Danish Championship 2025: 6.36Risbjerg Juni 2025: 5.86Rubik's WCA World Championship 2025: 5.77Norwegian Championship 2025: 6.12Clockerup i Otterup 2025: 5.53Delmenhorst Dreht Durch 2025: 5.44Sej Sejere Sejs 2025: 5.86Hvidovre Liga III 2025: 6.44Aarhus Fall 2025: 6.22Hvidovre Open 2025: 5.82Festligt Farvel til 2025: 6.51Hvidovre for Alle 2026: 6.52Aalborg Special 2026: 5.45Pi Cubing Hvidovre 2026: 6.11Roskilde by Night 2026: 6.83Nordic & Swedish Championship 2026: 6.61Sydals Open 2026: 6.34Hvidovre Juni 2026: 5.60Billund Open 2026: 6.06Summer Cubing Szczecin 2026: 5.81Rubik's WCA European Championship 2026: 5.88Jiajiang Open 2026: 5.72Nats Warm-Up Delmenhorst 2026: 5.16Puck Open 2026: 5.285.0318.106 Dec 201429 Aug 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-3 Square-1 single — 1 people have one; it is 0.70 away.
  • A sub-1 Pyraminx single — 49 people have one; it is 0.15 away.

Targets move as he improves.