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People · United States

Roi Christian Kim

Clock · top 1.4% of 32,817 all-time · competing since April 2024 · 2024KIMR03

Roi Christian Kim has been competing for 2 years. His best event is the Clock: a personal-best single of 3.41, set at Virginia Championship 2026, puts him in the top 1.4% of the 32,817 people who have ever been ranked in the event, and 130th in the United States. Until July 2018, no official Clock solve in the world had been that fast. Across 20 competitions since April 2024, he has put 554 official solves on the record across ten events. Solve to solve, his 3×3 times vary about 15% around a typical one; 88% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 34.95 in April 2024 to 8.35, a 76% improvement. Roi has entered 20 competitions, more competitions than 97% of everyone who has ever competed.

Clock
best event — top 1.4% of 32,817 all-time
3.41
signature single · Virginia Championship 2026
554
official solves on the record
15%
solve-to-solve spread · wider than 88% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingUnited States
Clock3.414.51
top 1.4%130 / 9,172
3×38.3511.02
top 3.5%1,981 / 60,666
2×22.174.07
top 6.0%2,437 / 41,674
Skewb3.426.15
top 7.3%1,147 / 19,164
Pyraminx4.255.62
top 8.9%2,356 / 29,168
3×3 one-handed17.5520.41
top 14.0%1,839 / 15,900
Megaminx1:12.191:20.79
top 17.0%1,176 / 8,026
4×453.2758.98
top 28.8%4,532 / 19,354
Square-123.2234.83
top 35.3%2,316 / 6,846
5×51:48.091:56.03
top 41.4%3,397 / 9,537

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

Slow N Steady Spring 2024: 34.95Cubing in the Ocean County 2024: 25.90UMBC Fall 2024: 16.11CubingUSA Mid-Atlantic Championship 2024: 20.09Slow N Steady UMD Fall 2024: 16.16Bethesda Winter Wonderland 2025: 18.86Front Royal Spring 2025: 20.11TJHSST Spring 2025: 15.40Suwon Summer 2025: 14.86Slow N Steady UMD Fall 2025: 12.57UMBC Fall 2025: 12.27UMBC Winter 2026: 12.57TJHSST Winter 2026: 10.31Welcome to Washington D.C. 2026: 11.86Derwood Cubing Derby Spring 2026: 10.53Rubik's WCA North American Championship 2026: 13.62Mid-Atlantic Speedcubing Championship 2026: 9.81Moore Cubes in Loudoun 2026: 8.35UMBC Fall 2026: 9.75Virginia Championship 2026: 10.058.3534.9513 Apr 202417 Oct 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.

  • Hassan Khanani — met in 96 rounds, finished ahead 5 times
  • Makai Guay — met in 93 rounds, finished ahead 4 times
  • Fiona Bao — met in 85 rounds, finished ahead once

Next targets

  • A sub-3 Clock single — 248 people have one; it is 0.41 away.
  • A sub-8 3×3 single — 8,101 people have one; it is 0.35 away.

Targets move as he improves.