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People · United States

Jack Pfeifer

2×2 · top 0.057% of 186,767 all-time · competing since August 2016 · 2016PFEI01

Jack Pfeifer has been competing for 10 years. His best event is the 2×2: a personal-best single of 0.63, set at Many Cubes in Mansfield 2025, puts him in the top 0.057% of the 186,767 people who have ever been ranked in the event, and 20th in the United States. Until June 2015, no official 2×2 solve in the world had been that fast. Across 161 competitions since August 2016, he has put 8,250 official solves on the record across 17 events. Solve to solve, his 3×3 times vary about 14% around a typical one; 69% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 20.90 in August 2016 to 4.84, a 77% improvement. Jack has entered 161 competitions, more competitions than 99% of everyone who has ever competed.

2×2
best event — top 0.057% of 186,767 all-time
0.63
signature single · Many Cubes in Mansfield 2025
8,250
official solves on the record
14%
solve-to-solve spread · wider than 69% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingUnited States
2×20.631.48
top 0.057%20 / 40,951
5×538.1342.47
top 0.069%5 / 9,401
7×71:41.751:46.70
top 0.084%2 / 3,184
3×34.846.15
top 0.091%56 / 59,724
6×61:08.611:12.44
top 0.091%4 / 4,196
4×421.1724.50
top 0.12%21 / 19,072
3×3 one-handed8.109.97
top 0.22%35 / 15,683
Square-15.167.61
top 0.3%36 / 6,743
Skewb1.522.92
top 0.47%79 / 18,907
Pyraminx1.592.66
top 0.53%166 / 28,708
Megaminx36.7241.15
top 0.9%61 / 7,841
3×3 Fewest Moves23 moves27.00
top 3.0%81 / 2,040
Clock4.816.20
top 4.0%324 / 8,927
3×3 blindfolded29.5237.46
top 4.0%77 / 2,092
3×3 Multi-Blind8 of 9 cubes · 52:39—
top 28.0%208 / 731
4×4 blindfolded6:47.827:57.64
top 35.2%147 / 440
5×5 blindfolded25:03.00—
early days — 1 solve169 / 218

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

Michigan 2016: 20.90Shaker Fall 2016: 17.49Michigan Cubing Club Alpha 2017: 13.58Howland High Spring 2017: 14.60Shaker Spring 2017: 11.56CubingUSA Nationals 2017: 12.06Howland High Fall 2017: 12.65Glass City Open 2017: 10.45Michigan Cubing Club Delta 2017: 9.74Shaker Fall 2017: 11.55Michigan Cubing Club Alpha 2018: 10.44Husky Showdown 2018: 10.04Shaker Spring 2018: 10.03Flag City Spring 2018: 9.10Kent State Taco Bash 2018: 9.94CubingUSA Great Lakes Championship 2018: 9.33Holy Toledo Summer 2018: 8.77CubingUSA Nationals 2018: 9.82Cubing For LLS Fall 2018: 9.21Flag City Fall 2018: 8.52Michigan Cubing Club Delta 2018: 8.77Shaker Fall 2018: 8.76Imagination Station 2018: 8.91Garrettsville G-Men Classic 2019: 7.79Pittsburgh Spring 2019: 7.32Flag City Spring 2019: 7.88Kent State Taco Bash 2019: 6.41CubingUSA Great Lakes Championship 2019: 7.30Bulldog Qualifier 2019: 7.05Battle for Toledo 2019: 7.36CubingUSA Nationals 2019: 8.34Cuyahoga Cubing 2019: 7.53Michigan Cubing Club Gamma 2019: 6.66Flag City Fall 2019: 7.55Kent Fall 2019: 7.18Pittsburgh Fall 2019: 8.09Imagination Station 2020: 7.22Garrettsville G-Men Classic 2020: 7.31Michigan Cubing Club Alpha 2020: 7.54Pittsburgh Fall 2021: 6.35Bulldog Holiday Bash 2021: 7.88Bulldog Winter 2022: 6.90Ohio State Expo Open 2022: 5.99Bulldog Spring 2022: 6.42Puzzles at Wisconsin Spring 2022: 6.79Michigan Cubing Club Alpha 2022: 6.90Rubik's WCA North American Championship 2022: 7.17Howland Returns 2022: 6.75Pittsburgh Summer B 2022: 7.02CubingUSA Great Lakes Championship 2022: 6.79Mt. Prospect Open 2022: 6.47Lake Erie Cubing Clash 2022: 5.42Ohio State Fall Scarlet 2022: 6.51Pittsburgh Fall 2022: 5.24Imagination Station A 2023: 5.93Bulldog Winter 2023: 5.98NA Stadium Series - Cleveland 2023: 6.86Michigan 2023: 5.48Flag City Summer 2023: 6.31CubingUSA Nationals 2023: 6.35Washtenaw Slow Summer 2023: 5.53Fort Wayne Favorites 2023: 5.61Bulldog Fall 2023: 6.15Washtenaw Autumn 2023: 6.29Rubik's WCA North American Championship 2024: 6.18Eastwood Mall Summer 2024: 6.56Michigan Mini 23 2024: 6.23CubingUSA Great Lakes Championship 2024: 5.90Green Fall 2024: 5.54Ohio State Fall 2024: 5.74Michigan Mini 25 2024: 6.37Barberton Mini 5 2024: 6.11Ohio State Nearly New Years 2024: 5.59Gem City Ohio Showdown 2025: 6.15Ohio State Winter 2025: 6.30NxNationwide Lewis Center 2025: 6.49Barberton Mini 7 2025: 6.21Green Winter 2025: 6.11Chicagoland Newcomers 2025: 5.17Michigan Mini 29 2025: 5.13Southern Indiana Qualifier 2025: 5.84Michigan Mini 30 2025: 5.87Preble Spring 2025: 6.62Carmen Cube Clash Ohio State 2025: 5.74Put-in-Bay 2025: 5.96Grove City Weeknight Trios 2025: 5.35Many Cubes in Mansfield 2025: 5.69Gem City Pre-Flight Warm Up OH 2025: 5.90Rubik's WCA World Championship 2025: 6.27Doing Time in Moundsville 2025: 6.42Ohio State Summer 2025: 5.80CubingUSA Great Lakes Championship 2025: 5.55Michigan Championship 2025: 5.97Locked in Clocked in Coshocton 2025: 5.14Prebleminxing 2025: 5.63Washtenaw Slow Fall 2025: 5.83Clock & 'Minx Ohio 2025: 5.80Ohio State Fall 2025: 6.08Rubik's x TheCubicle CubingUSA All-Stars 2025: 6.30Oberlin Big Cubes 2025: 5.80Kids America Christmas Clash OH 2025: 6.40Ohio Championship 2025: 5.54Michigan Medium 2025: 6.15Ohio State Winter 2026: 5.68Lewis Center Side Events 2026: 5.48Ohio University 2026: 5.45Oberlin Weeknights I 2026: 5.45Bowling Green Spring 2026: 6.63Return to Green OH 2026: 5.07OberliNxN 2026: 6.10Grand Central Cubing WV 2026: 5.35National Trail Open OH 2026: 6.423x3 in Madison 2026: 6.16CubingUSA Great Lakes Championship 2026: 4.84Ohio State Summer Warm Up 2026: 5.36Rubik's WCA North American Championship 2026: 4.96Ohio State Summer Mini 2026: 5.72Kids America Coshocton Cube Clash 2026: 5.874.8420.9013 Aug 20168 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-30 5×5 single — 1 people have one; it is 8.13 away.

Targets move as he improves.