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The Middle Three
People → United States → Jeffrey Kim

People · United States

Jeffrey Kim

3×3 · top 3.4% of 284,439 all-time · competing since April 2015 · 2015KIMJ04

Jeffrey Kim has been competing for 11 years. His best event is the 3×3: a personal-best single of 8.35, set at Bay Area Speedcubin' 47 - Berkeley Pride 2023, puts him in the top 3.4% of the 284,439 people who have ever been ranked in the event, and 1,939th in the United States. Until July 2008, no official 3×3 solve in the world had been that fast. Across 24 competitions since April 2015, he has put 460 official solves on the record across seven events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 56% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 21.75 in April 2015 to 8.35, a 62% improvement. Jeffrey has entered 24 competitions, more competitions than 97% of everyone who has ever competed.

3×3
best event — top 3.4% of 284,439 all-time
8.35
signature single · Bay Area Speedcubin' 47 - Berkeley Pride 2023
460
official solves on the record
13%
solve-to-solve spread · steadier than 56% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingUnited States
3×38.3510.04
top 3.4%1,939 / 59,724
4×434.5939.17
top 6.3%977 / 19,072
2×22.795.38
top 11.9%4,693 / 40,951
5×51:11.061:16.39
top 12.4%953 / 9,401
3×3 one-handed17.1722.60
top 13.0%1,681 / 15,683
6×62:25.762:29.52
top 23.5%831 / 4,196
Square-118.6327.56
top 24.9%1,649 / 6,743

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

Berkeley Spring 2015: 21.75SPCS Stanford Spring 2015: 24.37BASC 6 2015: 22.69BASC 7 2015: 19.16Bay Area Speedcubin' 31A - Mill Valley 2022: 11.08Berkeley Summer 2022: 11.41Bay Area Speedcubin' 34 - San Ramon 2022: 11.13Bay Area Speedcubin' 35 - Pacifica 2022: 10.38Berkeley Fall 2022: 10.98WCC Western Championship 2022: 10.95Bay Area Speedcubin' 39 2022: 11.13Bay Area Speedcubin' 40 - San Ramon 2022: 10.12SacCubing XIII 2023: 8.37Berkeley Winter B 2023: 10.08Bay Area Speedcubin' 41 2023: 10.76Berkeley Spring 2023: 11.43Bay Area Speedcubin' 46 Live - SSF 2023: 8.73Bay Area Speedcubin' 47 - Berkeley Pride 2023: 8.35Bay Area Speedcubin' 48 - 6.25 Berkeley 2023: 9.01Berkeley Summer 2023: 9.438.3524.3712 Apr 201526 Aug 2023

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.

  • Mitchell Lane — met in 83 rounds, finished ahead once
  • Jason Ostdiek — met in 82 rounds, finished ahead 6 times
  • An Le — met in 80 rounds, finished ahead twice

Next targets

  • A sub-8 3×3 single — 7,931 people have one; it is 0.35 away.
  • A sub-30 4×4 single — 2,388 people have one; it is 4.59 away.

Targets move as he improves.