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People → China → Eric Jingze Dai (戴竞择)

People · China

Eric Jingze Dai (戴竞择)

3×3 · top 4.1% of 284,439 all-time · competing since February 2022 · 2022DAIJ01

Eric Jingze Dai (戴竞择) has been competing for 5 years. His best event is the 3×3: a personal-best single of 8.68, set at West Coast Cubing Tour: Los Angeles 2025, puts him in the top 4.1% of the 284,439 people who have ever been ranked in the event, and 1,567th in China. Until July 2008, no official 3×3 solve in the world had been that fast. Across 26 competitions since February 2022, he has put 640 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 10% around a typical one, steadier than 98% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 13.45 in February 2022 to 8.68, a 35% improvement. Eric has entered 26 competitions, more competitions than 98% of everyone who has ever competed.

3×3
best event — top 4.1% of 284,439 all-time
8.68
signature single · West Coast Cubing Tour: Los Angeles 2025
640
official solves on the record
10%
solve-to-solve spread · steadier than 98% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingChina
3×38.6812.52
top 4.1%1,567 / 28,153
Skewb3.054.78
top 5.2%289 / 5,004
2×22.774.16
top 11.7%1,800 / 15,796
Clock7.408.52
top 12.6%272 / 1,843
4×443.3552.53
top 16.2%1,759 / 5,926
Pyraminx7.4010.35
top 31.1%3,430 / 10,224
3×3 one-handed26.1027.68
top 37.1%3,477 / 5,922
5×52:10.962:29.20
top 56.0%2,256 / 2,816
3×3 Fewest Moves43 moves—
early days — 1 solve691 / 1,058
Megaminx2:31.343:20.36
top 61.7%1,466 / 1,678
Square-141.3046.69
top 67.0%1,109 / 1,362
3×3 blindfolded5:42.89—
top 84.8%1,113 / 1,183

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

Anaheim Winter A 2022: 13.45San Diego Spring 2022: 12.94A Bruin Cube Day 2022: 12.58Circle City Summer 2022: 12.55Irvine Summer 2022: 12.99Diamond Bar September 2022: 11.96WCC Western Championship 2022: 12.39San Diego's Final Cube-Down 2022: 12.05Cozy Cubing Poway 2023: 12.83Marshall Cubing Spring 2023: 11.25Circle City Turbocharged 2023: 11.61Cubing in the Valley 2023: 10.87UCSD For Hemophilia 2023: 10.43Pride in Long Beach 2023: 11.88Rialto Cubing Summer 2023: 11.29Rubik's WCA World Championship 2023: 13.11UCSD Unofficial Events 2023: 12.22UCSD Winter 2023: 9.92Catalina Cube Mixer 2024: 11.72Westview Cubing Favorites 2024: 11.79Nub Open Mission Viejo Summer 2024: 11.73Nub Open Mission Viejo Spring 2025: 9.81West Coast Cubing Tour: Los Angeles 2025: 8.688.6813.455 Feb 202222 Jun 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-8 3×3 single — 7,931 people have one; it is 0.68 away.
  • A sub-3 Skewb single — 3,646 people have one; it is 0.05 away.

Targets move as he improves.