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People → Japan → Takumi Kato (加藤匠)

People · Japan

Takumi Kato (加藤匠)

3×3 one-handed · top 0.091% of 73,695 all-time · competing since February 2023 · 2023KATO03

Takumi Kato (加藤匠) has been competing for 4 years. His best event is the 3×3 one-handed: a personal-best single of 7.24, set at Tokai Summer 2025, puts him in the top 0.091% of the 73,695 people who have ever been ranked in the event, and 1st in Japan. Until May 2015, no official 3×3 one-handed solve in the world had been that fast. Across 63 competitions since February 2023, he has put 1,428 official solves on the record across 15 events. Solve to solve, his 3×3 times vary about 14% around a typical one; 77% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 11.09 in February 2023 to 6.61, a 40% improvement. Takumi has entered 63 competitions, more competitions than 99% of everyone who has ever competed.

3×3 one-handed
best event — top 0.091% of 73,695 all-time
7.24
signature single · Tokai Summer 2025
1,428
official solves on the record
14%
solve-to-solve spread · wider than 77% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
3×3 one-handed7.249.68
top 0.091%1 / 529
3×36.618.28
top 0.95%41 / 3,329
4×427.9335.33
top 1.8%18 / 667
Pyraminx3.343.75
top 4.8%65 / 688
5×51:00.441:05.40
top 5.7%45 / 420
2×22.203.13
top 6.2%81 / 1,021
Skewb3.296.03
top 6.5%34 / 338
Megaminx59.651:02.75
top 9.8%72 / 313
3×3 Fewest Moves28 moves31.67
top 9.9%47 / 201
6×61:57.562:12.13
top 10.1%31 / 209
Clock7.288.57
top 12.1%47 / 263
7×73:14.023:24.01
top 14.5%38 / 188
3×3 blindfolded1:14.45—
top 17.6%79 / 282
Square-122.0128.79
top 32.5%112 / 245
3×3 Multi-Blind3 of 3 cubes · 22:07—
early days — 2 solves82 / 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

Tokyo Challenge Winter B 2023: 11.09Hiroshima Spring 2023: 11.05Tokyo Challenge V 2023: 10.70Kanazawa Challenge Spring PM 2023: 11.18Ayase Summer 2023: 10.16Otsu Biwako Autumn 2023: 10.28Tokyo Challenge VI 2023: 9.45Hiroshima Winter 2024: 8.74Kanazawa 2024: 8.89Katano Milky Way 2024: 8.35Tokai Open AM 2024: 8.17Shonan PM 2024: 8.77Pingtung Winter Open 2025: 7.44Tokai Spring 2025: 7.61Tokyo Spring PM 2025: 8.21Kanto Spring 2025: 7.35Kansai Odd and BLD 2025: 7.08Tokyo Summer 2025: 7.80Tokai Summer 2025: 7.89Maru Cube Day Taiwan 2025: 6.88Kanto Summer AM 2025: 6.61Kanto Autumn AM 2025: 8.56Kansai Mega Day 2025: 9.21Hong Kong Championship 2025: 8.88Tokyo Winter 2025: 9.33Taiwan Championship 2025: 8.19Ota Winter 2026: 8.59Otsu Biwako Winter 2026: 8.64Kanto Winter 2026: 7.76Katano Spring 2026: 7.81Tokyo Spring 2026: 7.29Otsu Biwako Spring 2026: 7.38Lotus's Pinklao Open 2026: 7.11Anyang Haseyo 2026: 8.94Kanto Spring 2026: 7.77Hiroshima Spring 2026: 7.14Taipei Cube Open 2026: 7.62Japan Championship 2026: 7.51Maru Cube Day Taiwan 2026: 6.62Kansai Mega Day 2026: 7.74Korea Open 2026: 7.71Kanto Summer 2026: 7.256.6111.1812 Feb 202329 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 one-handed single — 4 people have one; it is 1.24 away.
  • A sub-6 3×3 single — 1,376 people have one; it is 0.61 away.

Targets move as he improves.