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People · United States

Silas Williamson

Clock · top 2.5% of 32,048 all-time · competing since January 2023 · 2023WILL03

Silas Williamson has been competing for 4 years. His best event is the Clock: a personal-best single of 4.08, set at Rubik's WCA World Championship 2025, puts him in the top 2.5% of the 32,048 people who have ever been ranked in the event, and 211th in the United States. Until June 2015, no official Clock solve in the world had been that fast. Across 20 competitions since January 2023, he has put 804 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 14% around a typical one; 67% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 17.54 in January 2023 to 8.42, a 52% improvement. Silas has entered 20 competitions, more competitions than 97% of everyone who has ever competed.

Clock
best event — top 2.5% of 32,048 all-time
4.08
signature single · Rubik's WCA World Championship 2025
804
official solves on the record
14%
solve-to-solve spread · wider than 67% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingUnited States
Clock4.085.01
top 2.5%211 / 8,927
2×21.573.07
top 2.5%970 / 40,951
3×38.4210.26
top 3.6%2,023 / 59,724
Skewb3.346.12
top 6.8%1,053 / 18,907
Pyraminx3.885.55
top 7.1%1,803 / 28,708
5×51:11.261:28.68
top 12.5%965 / 9,401
Square-113.6517.58
top 13.4%919 / 6,743
4×441.9948.43
top 14.5%2,166 / 19,072
3×3 one-handed18.5521.92
top 16.5%2,149 / 15,683
Megaminx1:19.401:33.89
top 21.3%1,473 / 7,841
6×62:39.132:52.14
top 30.3%1,065 / 4,196
3×3 Fewest Moves36 moves42.00
top 33.6%738 / 2,040
3×3 blindfolded3:46.05—
early days — 3 solves1,351 / 2,092
7×76:00.12—
early days — 3 solves2,054 / 3,184

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

Springfield Winter Open 2023: 17.54Cubing for Autism Missouri 2023: 17.04CubingUSA Heartland Championship 2023: 17.03Springfield Summer Open 2023: 14.26Concordia Turning Fall 2023: 11.30Nimble Hands in Noblesville 2024: 10.29CoMO Cubing Winter 2024: 10.46Concordia Turning Spring 2024: 10.42Minxville Indiana 2024: 10.10Missouri Summer Kickoff 2024: 9.52Land of Lincoln 2024: 9.94CubingUSA Great Lakes Championship 2024: 10.47Concordia Turning Fall 2024: 9.73IlliNxNois Spring 2025: 9.30St. Louis Spring 2025: 8.47Land of Lincoln 2025: 9.08Rubik's WCA World Championship 2025: 8.42Concordia Turning Winter 2026: 10.21COMO Cube-Off 2026: 9.298.4217.5421 Jan 202318 Apr 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-4 Clock single — 741 people have one; it is 0.08 away.
  • A sub-1 2×2 single — 1,032 people have one; it is 0.57 away.

Targets move as he improves.