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The Middle Three
People → Japan → Eva Kato (加藤映葉)

People · Japan

Eva Kato (加藤映葉)

3×3 · top 0.23% of 284,439 all-time · competing since October 2013 · 2013KATO01

Eva Kato (加藤映葉) has been competing for 13 years. Her best event is the 3×3: a personal-best single of 5.46, set at WCA World Championship 2019, puts her in the top 0.23% of the 284,439 people who have ever been ranked in the event, and 25th in Japan. Until April 2015, no official 3×3 solve in the world had been that fast. Across 107 competitions since October 2013, she has put 4,953 official solves on the record across 15 events. Solve to solve, her 3×3 times vary about 13% around a typical one, steadier than 54% of the 35,811 competitors with ten or more counted rounds. Her 3×3 best has come down from 17.41 in October 2013 to 5.46, a 69% improvement. Eva has entered 107 competitions, more competitions than 99% of everyone who has ever competed.

3×3
best event — top 0.23% of 284,439 all-time
5.46
signature single · WCA World Championship 2019
4,953
official solves on the record
13%
solve-to-solve spread · steadier than 54% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
3×35.467.21
top 0.23%25 / 3,329
Square-15.187.51
top 0.31%2 / 245
2×20.911.77
top 0.39%23 / 1,021
Skewb1.713.97
top 0.75%32 / 338
4×425.3729.41
top 0.8%10 / 667
3×3 one-handed10.8614.69
top 1.7%54 / 529
Pyraminx2.333.66
top 1.8%50 / 688
Megaminx42.6246.31
top 2.3%17 / 313
5×553.3757.75
top 2.8%24 / 420
3×3 Fewest Moves25 moves30.00
top 5.1%70 / 201
6×61:46.851:55.37
top 6.1%17 / 209
7×72:55.623:05.43
top 9.3%26 / 188
3×3 blindfolded55.081:10.88
top 11.5%102 / 282
Clock7.798.10
top 14.2%67 / 263
3×3 Multi-Blind5 of 8 cubes · 37:49—
early days — 2 solves0 / 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

Yale Fall 2013: 17.41Starlight Open 2013: 17.65Liberty Science Center Open 2013: 21.22CCFC Winter 2014: 16.36Princeton Winter 2014: 17.19US Nationals 2014: 15.82Starlight Open 2014: 17.34Red Cross Cubing Open 2014: 12.11Yale Spring 2015: 13.08US Nationals 2015: 7.55Norwich Summer 2015: 10.25Northeastern Fall 2015: 8.84Manhasset Fall 2015: 9.77Liberty Science 2015: 9.30Red Cross Cubing Open 2016: 9.61Princeton Winter 2016: 7.92Big Apple Cube Clash 2016: 9.42Weston Spring 2016: 8.23Manhasset Spring 2016: 8.32Big Apple Spring 2016: 8.74Cube For A Cure Spring 2016: 9.36Cube4Cam 2016: 9.30Slow N Steady Spring 2016: 9.38US Nationals 2016: 9.18Sharon Summer 2016: 8.60New York City Summer 2016: 9.81Princeton Fall 2016: 8.66Hudson Valley Open Fall 2016: 8.38Clifton Winter 2017: 8.22Monument Mountain Winter 2017: 7.27Ledgewood Winter Open 2017: 7.88WPI Winter Cube Day 2017: 7.21New York City Winter 2017: 7.92Las Vegas Spring 2017: 7.60Big Cube Bash 2017: 6.63Hudson Valley Spring 2017: 8.06CubingUSA Nationals 2017: 7.45World Rubik's Cube Championship 2017: 6.94Sharon Summer 2017: 6.59UPenn Cube Day Fall 2017: 7.64Hudson Valley Fall 2017: 7.01Liberty Science Center Open 2017: 7.99New York City Winter 2018: 6.85Penn Cube Day Winter 2018: 7.70Incredible Pencil Mania 2018: 7.59Berkeley Winter 2018: 7.46Rutgers Spring 2018: 7.46No Place For DNF Spring 2018: 7.38North Plainfield Open 2018: 7.97New Hope Open Spring 2018: 7.14Maryland 2018: 7.43Brooklyn 2018: 7.59CubingUSA Nationals 2018: 7.04Fall Foliage Cubing 2018: 6.71CubingUSA New Jersey Championship 2018: 6.72Welcome to 2019: 7.00New Hope Open Winter 2019: 7.33CubingUSA Northeast Championship 2019: 7.87Brooklyn 2019: 9.23CubingUSA Western Championship 2019: 6.73Warm Up Sydney 2019: 7.03WCA World Championship 2019: 5.46CubingUSA Nationals 2019: 6.87Liberty Science Center Open 2019: 7.57Scranton Scramble 2020: 6.90Princeton Winter 2020: 7.14GA Cubers Return A 2021: 6.68Empire State Summer A 2021: 6.98Princeton Spring 2022: 7.67New York Championship 2022: 7.06Rubik's WCA North American Championship 2022: 7.63CubingUSA Great Lakes Championship 2022: 6.93WCC Western Championship 2022: 6.93UIUC Fall 2022: 7.10Happy Valley Fall 2022: 5.99Pittsburgh Fall 2022: 6.37Puzzling in Providence 2023: 6.63Indiana Finally Returns 2023: 7.31NJIT Spring 2023: 6.47UIUC Spring 2023: 6.41North Jersey Speedsolving B 2023: 6.78CubingUSA Mid-Atlantic Championship 2023: 6.66CubingUSA Nationals 2023: 6.08Rubik's WCA World Championship 2023: 6.85Amsterdam Open 2023: 6.58Belgian Nationals 2023: 7.19Arnhem Open A 2024: 6.62Kanazawa 2024: 6.32Dutch Nationals 2024: 6.85Squockholm Open 2025: 6.88Kansai Odd and BLD 2025: 6.14Rubik's WCA World Championship 2025: 6.93Small Sides Alphen 2025: 6.26Ota Winter 2026: 8.69Kanto Winter 2026: 6.65Kanto Spring 2026: 7.51Japan Championship 2026: 6.49Mid-Atlantic Warm-Up 2026: 7.11Kanto Summer 2026: 6.805.4621.2226 Oct 201329 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 her.

Next targets

  • A sub-5 3×3 single — 344 people have one; it is 0.46 away.
  • A sub-5 Square-1 single — 68 people have one; it is 0.18 away.

Targets move as she improves.