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People → United States → Zalman Grossbaum

People · United States

Zalman Grossbaum

3×3 · top 0.58% of 288,433 all-time · competing since March 2023 · 2023GROS05

Zalman Grossbaum has been competing for 4 years. His best event is the 3×3: a personal-best single of 6.14, set at Bring the Heat AZ 2023, puts him in the top 0.58% of the 288,433 people who have ever been ranked in the event, and 392nd in the United States. Until June 2011, no official 3×3 solve in the world had been that fast. Across 16 competitions since March 2023, he has put 663 official solves on the record across 13 events. Solve to solve, his 3×3 times vary about 12% around a typical one, steadier than 61% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 9.55 in March 2023 to 6.14, a 36% improvement. Zalman has entered 16 competitions, more competitions than 96% of everyone who has ever competed.

3×3
best event — top 0.58% of 288,433 all-time
6.14
signature single · Bring the Heat AZ 2023
663
official solves on the record
12%
solve-to-solve spread · steadier than 61% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingUnited States
3×36.148.50
top 0.58%392 / 60,666
4×428.8535.04
top 2.2%371 / 19,354
Square-18.7310.42
top 4.1%311 / 6,846
2×21.913.29
top 4.2%1,692 / 41,674
Clock5.757.42
top 6.4%513 / 9,172
Skewb3.654.96
top 8.7%1,352 / 19,164
Pyraminx4.298.61
top 9.2%2,421 / 29,168
5×51:06.561:11.42
top 9.5%747 / 9,537
3×3 one-handed19.5621.45
top 19.4%2,523 / 15,900
6×62:20.972:38.25
top 21.2%756 / 4,262
Megaminx1:30.691:42.86
top 28.7%2,032 / 8,026
7×74:31.684:56.55
top 41.7%1,208 / 3,236
3×3 blindfolded6:42.19—
early days — 1 solve1,911 / 2,128

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 2023: 9.55Bay Area Speedcubin' 48 - 6.25 Berkeley 2023: 9.49Sioux City Sunday 2023: 9.06Bay Area Speedcubin' 50 - Berkeley 2023: 8.69Bring the Heat AZ 2023: 6.14Folsom Winter 2023: 7.77Davis Winter 2024: 8.15Berkeley Summer 2024: 8.12Folsom Summer 2024: 8.39CubingUSA Western Championship 2024: 6.68La La Land 2024: 7.53Davis Fall 2024: 7.66Flushing Glow Open PM 2025: 7.96Berkeley Spring 2025: 6.88SacCubing XXII 2026: 8.23Davis Big Summer 2026: 6.996.149.5512 Mar 20238 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-6 3×3 single — 1,419 people have one; it is 0.14 away.
  • A sub-25 4×4 single — 614 people have one; it is 3.85 away.

Targets move as he improves.