Sunday 6 September 2026 Rebuilt nightly from the WCA's official results · export of 6 September 2026 · About
The Middle Three
People → South Africa → Ruben Grobler

People · South Africa

Ruben Grobler

3×3 · top 0.69% of 284,439 all-time · competing since November 2015 · 2015GROB02

Ruben Grobler has been competing for 11 years. His best event is the 3×3: a personal-best single of 6.31, set at Cubestuff Challenge Centurion Hotel Q1 2025, puts him in the top 0.69% of the 284,439 people who have ever been ranked in the event, and 8th in South Africa. Until May 2011, no official 3×3 solve in the world had been that fast. Across 46 competitions since November 2015, he has put 2,589 official solves on the record across 17 events. Solve to solve, his 3×3 times vary about 14% around a typical one; 74% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 29.69 in November 2015 to 6.31, a 79% improvement. Ruben has entered 46 competitions, more competitions than 99% of everyone who has ever competed.

3×3
best event — top 0.69% of 284,439 all-time
6.31
signature single · Cubestuff Challenge Centurion Hotel Q1 2025
2,589
official solves on the record
14%
solve-to-solve spread · wider than 74% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingSouth Africa
3×36.317.78
top 0.69%8 / 2,164
Skewb1.733.55
top 0.78%5 / 438
2×21.191.75
top 1.0%8 / 1,510
4×428.0933.01
top 1.8%7 / 491
3×3 one-handed11.2114.22
top 2.1%6 / 467
Pyraminx2.463.95
top 2.1%11 / 946
5×553.8059.49
top 3.0%5 / 221
Square-18.7612.27
top 4.1%4 / 118
Megaminx52.7259.70
top 6.3%10 / 266
6×61:47.891:59.25
top 6.4%3 / 84
3×3 Fewest Moves27 moves29.33
top 8.0%4 / 53
7×72:52.733:07.36
top 8.6%4 / 69
Clock7.0510.35
top 11.1%15 / 148
3×3 blindfolded58.461:28.28
top 12.5%6 / 53
3×3 Multi-Blind7 of 8 cubes · 34:49—
top 30.0%9 / 27
4×4 blindfolded6:34.94—
early days — 3 solves4 / 15
5×5 blindfolded19:12.00—
early days — 1 solve4 / 7

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

Johannesburg Open 2015: 29.69Johannesburg Open 2016: 16.06Johannesburg 2016: 13.64Gauteng Winter 2017: 11.18Speedcubes Johannesburg 2017: 10.40Big 'n Weird Pretoria 2017: 11.69Gauteng Autumn 2018: 9.48Arnold Classic Africa 2018: 8.46Soweto Spring Open 2018: 9.40Gauteng Summer 2019: 9.12Arnold Classic Africa 2019: 8.75Cape Town Spring 2019: 7.85Gauteng Autumn 2022: 7.72Arnold Classic Africa 2022: 7.54CubeCo Durban Winter Warmup 2022: 6.77Inni-Horie-Fees Speedcubing 2022: 8.04Rubik's WCA African Championship 2022: 7.74Just Cube Joburg 2022: 7.65Mimosa Mall Master Cubers 2022: 7.81Crazy Cubing Centurion 2023: 6.87CubingZA National Championship 2023: 7.27Mimosa Mall Master Cubers 2023: 6.83Cubestuff Challenge Q1 2024: 6.58Cubestuff Challenge Q2 2024: 7.67Cubestuff Challenge Centurion Q3 2024: 7.02Benoni Cubing Comeback 2024: 7.83Rubik's WCA African Championship 2024: 7.52Inni-Horie-Fees 2024: 7.85Cubestuff Challenge Q4 Menlyn Park 2024: 8.02Cubestuff Challenge Centurion Hotel Q1 2025: 6.31CuBeaulieu Craze Comeback 2025: 6.83CubingZA Nationals 2025: 7.21Cubestuff Challenge Centurion Q2 2025: 6.95Cubestuff Centurion Q3 2025: 6.75Menlo Cubing Open 2025: 6.83Merry Twistmas Lynnwood 2025: 7.39Cubestuff Centurion Q1 2026: 7.48Cubestuff Centurion Q2 2026: 7.27Cubestuff Grand Challenge - The Leonardo 2026: 7.42Cubestuff Challenge Centurion Q3 2026: 7.28Farrarmere Full Speed 2026: 7.856.3129.6929 Nov 201522 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-6 3×3 single — 1,376 people have one; it is 0.31 away.
  • A sub-1 Skewb single — 35 people have one; it is 0.73 away.

Targets move as he improves.