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People → Japan → Natsuki Ishizawa (石澤夏希)

People · Japan

Natsuki Ishizawa (石澤夏希)

Skewb · top 5.1% of 73,281 all-time · competing since November 2014 · 2014ISHI04

Natsuki Ishizawa (石澤夏希) has been competing for 12 years. His best event is the Skewb: a personal-best single of 3.03, set at Cube Camp in Kanazawa 2019, puts him in the top 5.1% of the 73,281 people who have ever been ranked in the event, and 24th in Japan. Until February 2014, no official Skewb solve in the world had been that fast. Across 19 competitions since November 2014, he has put 515 official solves on the record across 14 events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 58% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 19.41 in November 2014 to 10.58, a 45% improvement. Natsuki has entered 19 competitions, more competitions than 97% of everyone who has ever competed.

Skewb
best event — top 5.1% of 73,281 all-time
3.03
signature single · Cube Camp in Kanazawa 2019
515
official solves on the record
13%
solve-to-solve spread · steadier than 58% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
Skewb3.034.34
top 5.1%24 / 338
3×310.5812.53
top 9.2%402 / 3,329
Square-112.7015.96
top 11.3%43 / 245
3×3 Fewest Moves29 moves—
top 12.2%55 / 201
Megaminx1:04.961:12.09
top 12.7%89 / 313
4×441.4344.87
top 13.8%143 / 667
Pyraminx5.266.79
top 14.8%173 / 688
3×3 blindfolded1:11.232:22.13
top 16.5%74 / 282
Clock8.429.84
top 17.2%63 / 263
5×51:24.231:31.88
top 22.6%135 / 420
3×3 Multi-Blind8 of 8 cubes · 49:19—
early days — 2 solves38 / 128
3×3 one-handed21.6828.40
top 25.1%205 / 529
2×24.085.47
top 27.5%341 / 1,021
6×62:51.063:14.70
early days — 3 solves93 / 209

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

UT Open 2014: 19.41Cube Camp in Kanazawa 2015: 15.55Tohoku Open 2015: 14.66Cube Camp in Kanazawa 2016: 11.27Circles Open Spring 2017: 13.63Yokohama 2017: 10.71Japan Open 2017: 12.50TMU Open 2018: 11.79Omiya Bigs 2018: 13.12Cube Camp in Kanazawa 2018: 12.69Tohoku 2018: 12.64Saitama 2018: 11.16Japan Championship 2018: 13.24Reiwa Anniversary 2019: 15.10Cube Camp in Kanazawa 2019: 14.30Tohoku 2019: 11.65Japan Championship 2019: 10.58Minatomirai 2022: 13.6610.5819.4123 Nov 201429 Apr 2022

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-3 Skewb single — 3,646 people have one; it is 0.03 away.
  • A sub-10 3×3 single — 21,172 people have one; it is 0.58 away.

Targets move as he improves.