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People · United States

Isaac Silberman

3×3 · top 1.3% of 284,439 all-time · competing since December 2019 · 2019SILB02

Isaac Silberman has been competing for 7 years. His best event is the 3×3: a personal-best single of 6.99, set at Spring into Summit 2024, puts him in the top 1.3% of the 284,439 people who have ever been ranked in the event, and 807th in the United States. Until November 2010, no official 3×3 solve in the world had been that fast. Across 28 competitions since December 2019, he has put 996 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 13% around a typical one; 53% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 15.78 in December 2019 to 6.99, a 56% improvement. Isaac has entered 28 competitions, more competitions than 98% of everyone who has ever competed.

3×3
best event — top 1.3% of 284,439 all-time
6.99
signature single · Spring into Summit 2024
996
official solves on the record
13%
solve-to-solve spread · wider than 53% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingUnited States
3×36.998.82
top 1.3%807 / 59,724
2×22.223.75
top 6.4%2,535 / 40,951
Pyraminx3.907.42
top 7.2%1,833 / 28,708
4×441.8850.30
top 14.4%2,142 / 19,072
Square-114.3718.65
top 15.0%1,009 / 6,743
3×3 one-handed18.5122.86
top 16.4%2,130 / 15,683
Skewb5.196.91
top 19.6%3,128 / 18,907
5×51:21.811:33.99
top 20.5%1,604 / 9,401
Megaminx1:51.702:12.52
top 41.3%2,997 / 7,841
6×63:21.573:41.43
top 51.3%1,927 / 4,196
Clock17.2218.92
top 56.2%4,668 / 8,927
7×76:19.53—
early days — 2 solves2,230 / 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

Liberty Science Center Open 2019: 15.78Babylon Winter 2020: 11.15Empire State Winter B 2022: 9.62Pennsylvania Championship 2022: 9.21Westport Summer 2022: 9.23River Hill Fall 2022: 8.47New York Yopen 2022: 7.97New York New Year 2023: 9.48Troy Story 2023: 7.60Pretzel Mania 2023: 8.15Penn Cube Day Spring 2023: 7.77NJIT Spring 2023: 8.73Empire State Spring 2023: 7.81PBs in Palisades 2023: 7.95South Jersey Speedsolving 2023: 8.76Wilmington Warmup 2023: 8.12CubingUSA Nationals 2023: 7.55Pretzel Mania Summer 2023: 7.34Square-Fun in Bloomsburg 2023: 8.01Northampton Fall A 2023: 8.32Princeton Fall 2023: 8.34NYU Winter 2024: 7.34South Jersey Speedsolving 2024: 8.72Great Peconic Bay Spring 2024: 7.33Spring into Summit 2024: 6.99Cubes on the Bayside Summer 2024: 7.98Amherst Fall 2024: 8.03UMass Spring 2026: 9.396.9915.7814 Dec 201928 Feb 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-6 3×3 single — 1,376 people have one; it is 0.99 away.
  • A sub-2 2×2 single — 8,848 people have one; it is 0.22 away.

Targets move as he improves.