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The Middle Three
People → United States → Frederick Zheng

People · United States

Frederick Zheng

Clock · top 5.9% of 32,048 all-time · competing since November 2018 · 2018ZHEN45

Frederick Zheng has been competing for 8 years. His best event is the Clock: a personal-best single of 5.58, set at Potomac Spring 2023, puts him in the top 5.9% of the 32,048 people who have ever been ranked in the event, and 458th in the United States. Until December 2011, no official Clock solve in the world had been that fast. Across 27 competitions since November 2018, he has put 593 official solves on the record across 17 events. Solve to solve, his 3×3 times vary about 15% around a typical one; 82% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 28.09 in November 2018 to 14.63, a 48% improvement. Frederick has entered 27 competitions, more competitions than 98% of everyone who has ever competed.

Clock
best event — top 5.9% of 32,048 all-time
5.58
signature single · Potomac Spring 2023
593
official solves on the record
15%
solve-to-solve spread · wider than 82% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingUnited States
Clock5.586.38
top 5.9%458 / 8,927
3×3 Fewest Moves26 moves30.67
top 6.2%149 / 2,040
3×3 blindfolded43.3456.85
top 7.8%155 / 2,092
Square-112.9417.39
top 11.7%817 / 6,743
2×22.964.67
top 13.8%5,409 / 40,951
4×4 blindfolded4:24.245:35.89
top 17.5%65 / 440
3×314.6319.56
top 23.2%12,541 / 59,724
Skewb5.667.32
top 23.2%3,710 / 18,907
3×3 one-handed23.5128.51
top 30.1%3,901 / 15,683
4×454.7259.49
top 30.4%4,782 / 19,072
5×51:42.841:51.45
top 37.5%2,990 / 9,401
5×5 blindfolded14:22.00—
early days — 2 solves80 / 218
Pyraminx8.4910.98
top 40.5%11,585 / 28,708
Megaminx1:56.832:24.85
top 44.0%3,216 / 7,841
3×3 Multi-Blind2 of 2 cubes · 3:42—
early days — 3 solves466 / 731
6×64:39.434:43.51
top 77.1%3,066 / 4,196
7×77:09.40—
early days — 1 solve2,578 / 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

TJHSST Fall 2018: 28.09Northern Neck Winter 2019: 20.69CubingUSA Northeast Championship 2019: 22.13Woodberry Forest School Cubing 2019: 27.08Virginia Qualifier 2019: 22.23River Hill Spring 2019: 22.34Northern Virginia Summer 2019: 17.70CubingUSA Nationals 2019: 17.46Slow N Steady Summer 2019: 20.97Potomac Speedcubing 2020: 25.40Slow N Steady Fall 2021: 23.09Slow N Steady Spring 2022: 21.06River Hill Spring 2022: 19.61Silver Spring Summer 2022: 20.12Slow N Steady Fall 2022: 22.46Potomac Spring 2023: 18.03CubingUSA Nationals 2023: 14.63Slow N Steady Fall 2023: 21.53MoCo Cubing Winter 2024: 21.01Slow N Steady Spring 2024: 16.11UMBC Fall 2024: 20.13Slow N Steady UMD Fall 2024: 15.77Slow N Steady UMD Spring 2025: 17.31Slow N Steady UMD Fall 2025: 18.2714.6328.093 Nov 201827 Sep 2025

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-5 Clock single — 1,421 people have one; it is 0.58 away.
  • A sub-40 3×3 blindfolded single — 826 people have one; it is 3.34 away.

Targets move as he improves.