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People → United States → Roi Christian Kim

People · United States

Roi Christian Kim

Clock · top 2.1% of 32,048 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 3.89, set at Mid-Atlantic Speedcubing Championship 2026, puts him in the top 2.1% of the 32,048 people who have ever been ranked in the event, and 181st in the United States. Until June 2015, no official Clock solve in the world had been that fast. Across 17 competitions since April 2024, he has put 414 official solves on the record across ten events. Solve to solve, his 3×3 times vary about 16% around a typical one; 90% of the 35,811 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 9.81, a 72% improvement. Roi has entered 17 competitions, more competitions than 96% of everyone who has ever competed.

Clock
best event — top 2.1% of 32,048 all-time
3.89
signature single · Mid-Atlantic Speedcubing Championship 2026
414
official solves on the record
16%
solve-to-solve spread · wider than 90% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingUnited States
Clock3.896.88
top 2.1%181 / 8,927
3×39.8111.64
top 6.9%3,805 / 59,724
Skewb3.426.51
top 7.2%1,125 / 18,907
Pyraminx4.255.62
top 8.9%2,312 / 28,708
2×22.524.07
top 9.1%3,585 / 40,951
3×3 one-handed17.5520.41
top 13.9%1,809 / 15,683
Megaminx1:12.191:20.79
top 17.0%1,158 / 7,841
4×453.2759.37
top 28.7%4,464 / 19,072
Square-123.5434.83
top 35.9%2,332 / 6,743
5×52:05.012:19.37
top 52.4%4,411 / 9,401

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: 9.819.8134.9513 Apr 202414 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 Clock single — 239 people have one; it is 0.89 away.
  • A sub-8 3×3 single — 7,931 people have one; it is 1.81 away.

Targets move as he improves.