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Achmad Rizki Zakaria

4×4 · top 2.2% of 83,917 all-time · competing since February 2011 · 2011ZAKA01

Achmad Rizki Zakaria has been competing for 16 years. His best event is the 4×4: a personal-best single of 28.86, set at Jogjakarta Altamira Sport Open 2013, puts him in the top 2.2% of the 83,917 people who have ever been ranked in the event, and 23rd in Indonesia. Until April 2012, no official 4×4 solve in the world had been that fast. Across 41 competitions since February 2011, he has put 1,988 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 81% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 22.34 in February 2011 to 8.09, a 64% improvement. Achmad has entered 41 competitions, more competitions than 99% of everyone who has ever competed.

4×4
best event — top 2.2% of 83,917 all-time
28.86
signature single · Jogjakarta Altamira Sport Open 2013
1,988
official solves on the record
12%
solve-to-solve spread · steadier than 81% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingIndonesia
4×428.8633.79
top 2.2%23 / 1,479
3×38.0911.02
top 2.9%116 / 4,145
2×21.783.68
top 3.5%79 / 2,889
5×557.331:05.71
top 4.2%25 / 624
Pyraminx3.805.52
top 6.7%118 / 1,643
7×73:03.463:10.34
top 11.6%18 / 154
6×62:03.802:12.90
top 12.6%23 / 183
Megaminx1:04.811:13.74
top 12.6%46 / 341
Skewb4.347.32
top 13.3%136 / 935
Clock9.6812.19
top 23.5%94 / 391
3×3 one-handed21.9327.49
top 25.8%341 / 1,441

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

Malang Speedsolving 2011: 22.34Semarang Fun Cube 2011: 16.75Kediri Fun Cube 2012: 11.71Bandung Open 2012: 11.59Pasuruan Open 2012: 11.84Malang Cube Day 2012: 11.93Surabaya Cube Day 2012: 11.19Jawa Timur Open 2013: 10.58Singapore Rubik's Cube Competition 2013: 12.52Pasuruan Regeneration Competition 2013: 10.91Kediri Open 2013: 12.00Jogjakarta Altamira Sport Open 2013: 12.55Pasuruan Mini Competition 2014: 11.61Madiun Happy Cubing 2014: 11.28Jawa Timur Open 2014: 13.19Pirih Rubik's Competition 2014: 12.22Altamira Jogja Istimewa 2015: 11.02Jawa Timur Open 2015: 11.182nd Jogja Mini Competition 2015: 11.61Singapore Rubik's Cube Competition 2016: 11.81Indonesian Championship 2016: 10.09Jawa Timur Open 2016: 12.22Semarang Fun Cube 2016: 11.04Bekasi Cube Days 2016: 11.68Madiun Happy Cubing 2017: 10.83Bogor Open 2017: 10.47Jogja Istimewa 2017: 10.96Indonesian Championship 2017: 12.24Malang Kuy 2017: 10.77Jawa Timur Open 2017: 8.92Pasuruan Open 2018: 10.42Indonesian Championship 2018: 10.75Malang Mini Comp 2019: 10.93Sriwijaya Mini 2019: 10.15USM Penang Cube 2019: 9.57Bogor Comeback 2019: 8.09Indonesian Championship 2019: 10.83Madiun Happy Cubing 2022: 10.54Sleman City Hall Cube Fest 2022: 9.42Malang Cube Open 2023: 11.388.0922.3427 Feb 201111 Mar 2023

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-25 4×4 single — 588 people have one; it is 3.86 away.
  • A sub-8 3×3 single — 7,931 people have one; it is 0.09 away.

Targets move as he improves.