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The Middle Three
People → United States → Sean Greshock

People · United States

Sean Greshock

Clock · top 3.9% of 32,048 all-time · competing since October 2023 · 2023GRES02

Sean Greshock has been competing for 3 years. His best event is the Clock: a personal-best single of 4.77, set at Alameda County Fair 2026, puts him in the top 3.9% of the 32,048 people who have ever been ranked in the event, and 316th in the United States. Until June 2015, no official Clock solve in the world had been that fast. Across 31 competitions since October 2023, he has put 624 official solves on the record across six events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 72% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 25.37 in January 2024 to 11.44, a 55% improvement. Sean has entered 31 competitions, more competitions than 98% of everyone who has ever competed.

Clock
best event — top 3.9% of 32,048 all-time
4.77
signature single · Alameda County Fair 2026
624
official solves on the record
12%
solve-to-solve spread · steadier than 72% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingUnited States
Clock4.776.13
top 3.9%316 / 8,927
2×22.053.42
top 5.1%2,035 / 40,951
Skewb3.436.18
top 7.3%1,129 / 18,907
Pyraminx4.165.69
top 8.5%2,175 / 28,708
3×311.4415.08
top 11.9%6,430 / 59,724
3×3 one-handed24.5034.27
top 32.9%4,301 / 15,683

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

Bay Area Speedcubin' 55 - San Ramon 2024: 25.37Berkeley Winter 2024: 20.37Bay Area Speedcubin' 58 - Berkeley 2024: 18.69Bay Area Speedcubin' 59 LIVE - SSF 2024: 18.94EVO Sports Expo Cubing - Santa Clara 2024: 19.33Bay Area Speedcubin' 61 - San Jose 2024: 18.47Berkeley Summer 2024: 18.47Bay Area Speedcubin' 64 LIVE - SSF 2024: 18.09Bay Area Speedcubin' 65 - Berkeley 2024: 17.20Berkeley Fall 2024: 15.56Cool Down Berkeley 2024: 15.08Bay Area Speedcubin' 66 - Belmont 2024: 18.93Berkeley Winter 2025: 16.69Berkeley Spring 2025: 16.13SCU I: May the Fourth Be With You 2025: 15.56Belmont Spring 2025: 16.08Rubik's WCA World Championship 2025: 14.40West Coast Cubing Western Championship 2025: 14.11Benicia Open 2025: 15.62San Ramon Fall 2025: 14.17Berkeley Fall 2025: 14.64Dublin California Open 2025: 12.13Bay Area Speedcubin' 68 - Belmont 2025: 13.96Berkeley Favorites 2026: 15.68Berkeley Spring 2026: 12.27Belmont Spring 2026: 14.36West Coast Cubing Western Championship 2026: 12.88King of Prussia Summer 2026: 13.34Bay Area Speedcubin' 69 2026: 11.4411.4425.3714 Jan 202429 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-4 Clock single — 741 people have one; it is 0.77 away.
  • A sub-2 2×2 single — 8,848 people have one; it is 0.05 away.

Targets move as he improves.