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People → Japan → Kengo Kageyama (蔭山賢吾)

People · Japan

Kengo Kageyama (蔭山賢吾)

3×3 · top 3.9% of 284,439 all-time · competing since May 2008 · 2008KAGE01

Kengo Kageyama (蔭山賢吾) has been competing for 18 years. His best event is the 3×3: a personal-best single of 8.58, set at Japan Open 2013, puts him in the top 3.9% of the 284,439 people who have ever been ranked in the event, and 165th in Japan. Until July 2008, no official 3×3 solve in the world had been that fast. Across 29 competitions since May 2008, he has put 622 official solves on the record across six events. Solve to solve, his 3×3 times vary about 11% around a typical one, steadier than 85% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 18.65 in May 2008 to 8.58, a 54% improvement. Kengo has entered 29 competitions, more competitions than 98% of everyone who has ever competed.

3×3
best event — top 3.9% of 284,439 all-time
8.58
signature single · Japan Open 2013
622
official solves on the record
11%
solve-to-solve spread · steadier than 85% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingJapan
3×38.5810.33
top 3.9%165 / 3,329
3×3 one-handed14.4618.16
top 7.0%70 / 529
2×22.664.46
top 10.5%145 / 1,021
4×440.9146.41
top 13.2%135 / 667
3×3 blindfolded1:27.44—
early days — 3 solves98 / 282
Megaminx1:59.712:04.26
top 45.5%219 / 313

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

Kashiwa Open 2008: 18.65Tokyo Open 2008: 15.08Japan Open 2008: 15.05Osaka Open 2009: 13.38JRCA Kanto Summer 2009: 12.97Japan Open 2009: 14.03Japan Open 2010: 12.27Kawasaki Open 2010: 12.1330th Anniversary MegaHouse Cup 2010: 12.08Cube Camp in Kanazawa 2010: 12.15Asian Championship 2010: 10.58Matsudo Open 2010: 11.53UT Open 2010: 10.05Osaka 2011: 10.78Matsudo Spring 2011: 10.03Japan Open 2011: 9.16Cube Camp in Kanazawa 2011: 10.56World Rubik's Cube Championship 2011: 10.68Matsudo Autumn 2011: 9.65UT Open 2011: 9.43Japan Contest Spring 2013: 10.22Japan Open 2013: 8.58Japan Contest Spring 2014: 10.97Asian Championship 2014: 10.80JRCA Kansai Winter 2015: 9.27Kanto Spring 2016: 9.36Kawasaki Spring 2016: 10.90TMU Open 2018: 9.03Tribox Open Spring 2018: 9.498.5818.655 May 20085 May 2018

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 0.58 away.
  • A sub-12 3×3 one-handed single — 2,187 people have one; it is 2.46 away.

Targets move as he improves.