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People → Japan → Kantaro Sakamoto (坂本貫太郎)

People · Japan

Kantaro Sakamoto (坂本貫太郎)

3×3 · top 0.096% of 288,433 all-time · competing since September 2023 · 2023SAKA04

Kantaro Sakamoto (坂本貫太郎) has been competing for 3 years. His best event is the 3×3: a personal-best single of 4.87, set at Kansai Mega Day 2026, puts him in the top 0.096% of the 288,433 people who have ever been ranked in the event, and 4th in Japan. Until November 2016, no official 3×3 solve in the world had been that fast. Across 40 competitions since September 2023, he has put 1,103 official solves on the record across twelve events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 54% of the 36,406 competitors with ten or more counted rounds. His 3×3 best has come down from 17.83 in September 2023 to 4.87, a 73% improvement. Kantaro has entered 40 competitions, more competitions than 99% of everyone who has ever competed.

3×3
best event — top 0.096% of 288,433 all-time
4.87
signature single · Kansai Mega Day 2026
1,103
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
3×34.876.24
top 0.096%4 / 3,360
3×3 one-handed8.6011.45
top 0.36%3 / 539
Megaminx42.9147.05
top 2.4%18 / 313
4×429.3533.75
top 2.5%31 / 679
Pyraminx2.703.51
top 2.7%40 / 691
2×21.702.47
top 3.1%43 / 1,026
Skewb2.573.57
top 3.2%12 / 354
5×51:01.521:05.59
top 6.5%51 / 426
Square-110.8111.89
top 7.6%27 / 251
Clock6.197.41
top 7.8%32 / 268
6×62:21.472:36.70
top 21.4%61 / 209
7×74:07.644:19.22
top 33.7%74 / 188

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

Tokai Open 2023: 17.83Hiroshima Winter 2024: 9.69Tokai Challenge Beta 2024: 8.62Kanazawa 2024: 7.87Katano Milky Way 2024: 7.59Tokai Open AM 2024: 5.90Rubik's WCA Asian Championship 2024: 6.44Shonan AM 2024: 6.88Tokyo Open AM Winter 2025: 6.53Tokai Spring 2025: 6.76Tokyo Spring PM 2025: 5.76Kanto Spring 2025: 6.25Kansai Odd and BLD 2025: 5.84Tokai Summer 2025: 6.98Kanto Summer AM 2025: 6.03Katano Summer 2025: 6.16Kanto Autumn PM 2025: 6.15Kansai Mega Day 2025: 6.49Ota Autumn 2025: 6.29Tokyo Winter 2025: 6.14Taiwan Championship 2025: 5.70Ota Winter 2026: 6.54Otsu Biwako Winter 2026: 5.29Kanto Winter 2026: 6.00Katano Spring 2026: 5.58Tokyo Spring 2026: 6.29Otsu Biwako Spring 2026: 6.18Kanto Spring 2026: 5.59Hiroshima Spring 2026: 5.10Japan Championship 2026: 6.35Maru Cube Day Taiwan 2026: 6.40Kansai Mega Day 2026: 4.87Kanto Summer 2026: 6.03Otsu Biwako Autumn 2026: 6.99Tokai Autumn 2026: 5.62Tokyo Autumn 2026: 5.394.8717.839 Sep 202317 Oct 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-4 3×3 single — 41 people have one; it is 0.87 away.
  • A sub-8 3×3 one-handed single — 155 people have one; it is 0.60 away.

Targets move as he improves.