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People → Republic of Korea → Ilkyoo Choi (최일규)

People · Republic of Korea

Ilkyoo Choi (최일규)

2×2 · top 8.0% of 186,767 all-time · competing since November 2008 · 2008CHOI04

Ilkyoo Choi (최일규) has been competing for 18 years. His best event is the 2×2: a personal-best single of 2.41, set at Solar Eclipse in Sycamore 2024, puts him in the top 8.0% of the 186,767 people who have ever been ranked in the event, and 228th in Republic of Korea. Until February 2008, no official 2×2 solve in the world had been that fast. Across 142 competitions since November 2008, he has put 3,145 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 73% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 18.09 in November 2008 to 10.79, a 40% improvement. Ilkyoo has entered 142 competitions, more competitions than 99% of everyone who has ever competed.

2×2
best event — top 8.0% of 186,767 all-time
2.41
signature single · Solar Eclipse in Sycamore 2024
3,145
official solves on the record
12%
solve-to-solve spread · steadier than 73% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingRepublic of Korea
2×22.414.79
top 8.0%228 / 2,319
3×310.7914.65
top 9.8%564 / 4,352
Skewb5.2811.46
top 20.3%206 / 854
3×3 Fewest Moves34 moves37.33
top 26.7%52 / 173
4×452.3058.14
top 27.5%489 / 1,308
Clock10.8512.05
top 29.4%197 / 536
Pyraminx7.7011.46
top 33.7%505 / 1,271
5×51:44.081:52.13
top 38.4%332 / 716
Square-128.0142.14
top 45.6%204 / 371
3×3 one-handed32.1944.02
top 51.6%624 / 966
6×63:32.423:44.35
top 55.6%216 / 329
Megaminx2:18.952:29.45
top 55.8%340 / 524
7×76:08.177:16.16
top 69.7%198 / 254

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

Newark Open 2008: 18.09Carnegie Mellon Fall 2008: 17.11Carnegie Mellon Spring 2009: 17.00Captain's Cove competition 2009: 18.11Carnegie Mellon Fall 2009: 16.38Carnegie Mellon Spring 2010: 17.31UIUC Spring 2011: 15.52United States National Championships 2011: 18.47Indiana 2011: 14.44Ohio Fall 2011: 14.75Cubing Korea Xmas Eve 2011: 15.31Cubing Korea December 2011: 16.00Cubing Korea New Years 2012: 14.23Cubing Korea January 2012: 15.58Hillsdale Winter 2012: 13.97New Albany 2012: 13.75United States National Championships 2012: 15.12Chiclayo Open 2012: 14.84UIUC Fall 2012: 12.78Dayton Fall 2012: 13.71Indiana 2012: 15.52Carnegie Mellon Fall 2012: 13.44Korean Style 2013: 13.94Dixon Winter 2013: 12.40Hillsdale Winter 2013: 14.83UIUC Spring 2013: 13.58Dixon Summer 2013: 15.68World Rubik's Cube Championship 2013: 15.26Indiana 2013: 11.91Battle of Waterloo 2013: 11.80Leaf Town 2013: 16.21Hillsdale Fall 2013: 13.88UIUC Fall 2013: 13.36Korean Winter 2013: 15.47Korea New Year 2014: 13.07Frankfurt Cube Days 2014: 14.44Valencia Open 2014: 14.36Grenoble Winter Open 2014: 14.77Nottingham Open 2014: 12.19Busan Summer 2014: 10.79Thanks Cubing Day 2014: 14.77Asian Championship 2014: 14.59Korean Christmas Cup 2014: 16.27KAIST Fall 2014: 13.29Happy Sheep Year 2015: 14.34Winter Cube Anniversary 2015: 15.55Spring Comes 2015: 14.18Good Cube Show Korea 2015: 15.70World Rubik's Cube Championship 2015: 14.95Korean KAIST Style 2015: 13.81Ugine Jeu et Jouet 2015: 14.86Korea Winter 2015: 15.25Valentine in Daegu 2016: 12.27Jeonju Spring 2016: 14.53Cube Is Good 2016: 17.07US Nationals 2016: 14.50Korean Championship 2016: 15.93Asian Championship 2016: 14.94Busan Winter 2016: 15.623x3x3 HanMaDang 2017: 16.49KAIST Spring 2017: 16.21Korean Spring Picnic 2017: 17.74Play Cube 2017: 16.61World Rubik's Cube Championship 2017: 13.72Korean Championship 2017: 13.31CWR Fall 2017: 16.44Jeju Open 2017: 14.86Korean CWR Style 2017: 13.96Cubedu Korea 2018: 15.28CWR Winter 2018: 17.16Korean Championship 2018: 14.85WCA Asian Championship 2018: 12.84CWR Fall 2018: 15.38Cutory Autumn Open 2018: 14.97Busan Winter 2018: 14.25Korea Winter 2019: 14.16Seoul Winter 2019: 14.90Cutory Blossom 2019: 14.95Play Cube X4 2019: 12.94Cubing Operating System Summer 2019: 15.85WCA World Championship 2019: 11.11Cube Camp in Wonju 2019: 16.93Korean Championship 2019: 13.49Daegu Autumn Open 2019: 13.80Cubing Korea 2019: 13.86ByeolLae Open 2020: 15.22Korean Championship Mini 2021: 16.07Korean Spring 2022: 13.55Seoul Summer 2022: 15.74Korean Championship 2022: 16.44Daegu Hot Autumn 2022: 16.36Cubing SimCheong Open 2022: 14.53KAIST Fall 2022: 15.72Daegu Hot Spring 2023: 15.75Seoul Spring 2023: 13.36Rubik's WCA World Championship 2023: 14.74Suncheon Fall 2023: 16.83Hamchang Open 2023: 16.73Korean Championship 2023: 15.31Seoul Open 2024: 14.28DuPage Winter 2024: 15.63Little Giant Open 2024: 16.45UIUC Big Cubes Spring 2024: 16.32Solar Eclipse in Sycamore 2024: 14.97Chicago Area Twist Spring A 2024: 11.20Land of Lincoln 2024: 13.94DuPage Fall 2024: 14.76WonderLand Education West Lafayette Fall 2024: 15.63Happy Suseong 2025: 14.28Korea Newcomers AM 2025: 17.67Daejeon Spring 2025: 14.57Osan Summer 2025: 15.07Suwon Summer 2025: 16.46Korea Open 2025: 15.18We Laugh Pohanghang 2025: 16.21Okcheon Autumn Breeze 2025: 15.36Uhseo Osong 2025: 13.79Seoul Winter 2026: 15.53Ansan Favorites 2026: 16.37Cube Camp in Jeju 2026: 15.33Seoul Spring 2026: 16.16Anyang Haseyo 2026: 15.45Hamoye Jinju 2026: 13.83Korea Open 2026: 14.2110.7918.478 Nov 200815 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-2 2×2 single — 8,848 people have one; it is 0.41 away.
  • A sub-10 3×3 single — 21,172 people have one; it is 0.79 away.

Targets move as he improves.